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Chemistry Mix Quizzes, Trivia and Puzzles
Chemistry Mix Quizzes, Trivia

Chemistry Mix Trivia

Chemistry Mix Trivia Quizzes

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Fun Trivia
Randomly mixing things in chemistry may not be the best idea because you never know what you'll get. On the other hand, randomly mixing chemistry question is an excellent idea: You'll never know what you'll get!
47 Chemistry Mix quizzes and 465 Chemistry Mix trivia questions.
1.
  Chemistry Matters   top quiz  
Multiple Choice
 10 Qns
Some fundamental concepts
It matters because it is all around us every day! Let's consider some of the basic vocabulary of chemicals and chemical reactions.
Easier, 10 Qns, looney_tunes, Apr 23 23
Recommended for grades: 8,9,10
Easier
looney_tunes editor
Apr 23 23
708 plays
2.
  Analytical Chemistry   popular trivia quiz  
Multiple Choice
 10 Qns
Analytical chemistry involves separation, identification, and determination of relative amounts of chemical components in a sample. How well do you know this subject? Have fun and thanks for playing.
Tough, 10 Qns, Matthew_07, Aug 25 22
Tough
Matthew_07 gold member
Aug 25 22
3331 plays
3.
  The Uses of Various Chemical Substances    
Multiple Choice
 10 Qns
There are several chemical substances that have very important uses in our daily lives. How much do you know about these substances?
Average, 10 Qns, angikar, Sep 06 23
Average
angikar
Sep 06 23
942 plays
4.
  Think Chemistry   great trivia quiz  
Multiple Choice
 10 Qns
A quiz to test your general knowledge of the subject of chemistry.
Tough, 10 Qns, doublemm, Dec 30 08
Tough
doublemm gold member
3737 plays
5.
  Where Does That Pigment Come From?   great trivia quiz  
Match Quiz
 10 Qns
Pigments are the materials that give color to paints and dyes. Some can be made from natural ingredients, some are synthetic, and only made by humans applying chemistry in a creative fashion. Can you match each of these pigments with its source?
Average, 10 Qns, looney_tunes, Jul 25 17
Average
looney_tunes editor
Jul 25 17
478 plays
6.
  Matter and Substance   popular trivia quiz  
Multiple Choice
 10 Qns
This quiz tests your knowledge on atomic structures and the properties of matter. Have fun and enjoy!
Average, 10 Qns, Matthew_07, Aug 17 20
Average
Matthew_07 gold member
Aug 17 20
2524 plays
7.
  The Beautiful Logic of Chemistry   great trivia quiz  
Multiple Choice
 10 Qns
In philosophy, analytic statements are true by definition, meaning that they require no experimental evidence to verify. Let's see how this can apply in chemistry.
Average, 10 Qns, doublemm, Jan 02 14
Average
doublemm gold member
610 plays
8.
  The Great White Part 7: Chalky Compounds   popular trivia quiz  
Multiple Choice
 10 Qns
Part seven of the Great White shall take you into the chemistry lab where we will look at elements, compounds and mixtures all somehow related to the color white.
Average, 10 Qns, WesleyCrusher, Jun 17 19
Average
WesleyCrusher editor
Jun 17 19
365 plays
9.
  Soluble, or Not?   popular trivia quiz  
Multiple Choice
 10 Qns
Memorizing solubility rules for class was about as interesting as eating cardboard. Luckily for you, this quiz is jam-packed with all sorts of delectable chemistry tidbits! Ample hints.
Average, 10 Qns, pu2-ke-qi-ri, Mar 21 20
Average
pu2-ke-qi-ri
Mar 21 20
2162 plays
10.
  Fuels that We Use    
Multiple Choice
 15 Qns
Can we imagine a world without oil or coal? Even though rapid advances have been made in other energy sources, these would be indispensable for quite a long time. This quiz is about these precious resources.
Average, 15 Qns, namastheg, Oct 21 23
Average
namastheg
Oct 21 23
4162 plays
trivia question Quick Question
What is the apparatus used to separate crude oil into more useful substances called?

From Quiz "Chemistry"




11.
  Doublemm's Disastrous Interview!   great trivia quiz  
Multiple Choice
 10 Qns
Doublemm is going for a *very tricky* chemistry interview at university in a few hours. However, all that he knows has suddenly abandoned his brain! Give Doublemm a gentle whisper in the ear during this interview to prevent it being a complete disaster!
Tough, 10 Qns, doublemm, Aug 21 17
Tough
doublemm gold member
Aug 21 17
857 plays
12.
  Fahrenheit 111   great trivia quiz  
Multiple Choice
 10 Qns
When the temperature is raised from room temperature, 77 degrees Fahrenheit (25 degrees Celsius), to 111 degrees Fahrenheit (44 degrees Celsius), plenty of chemical changes can happen. Here's a look at a few of them. Thanks kyleisalive for the challenge!
Tough, 10 Qns, adams627, Jun 27 12
Tough
adams627
555 plays
13.
  Hazardous Substance!    
Multiple Choice
 10 Qns
This is a quiz about the NFPA (National Fire Protection Association) 704 Hazard Identification System. NOTE: ALL quotations are from: "http://chemlabs.uoregon.edu/Safety/NFPA.html", these have been used for clarity and to minimise confusion.
Tough, 10 Qns, DanielPoulson, May 10 09
Tough
DanielPoulson
1264 plays
14.
  Predicting the Products of Chemical Reactions    
Multiple Choice
 10 Qns
This quiz is intended to test your knowledge on chemical reactions. It covers some basic aspects of chemical reactions. It gets more and more difficult towards the end. (everything at room temperature and pressure unless specified otherwise)
Difficult, 10 Qns, bbi5291, Nov 26 13
Difficult
bbi5291
2840 plays
15.
  Fun Chemistry   popular trivia quiz  
Multiple Choice
 10 Qns
This is a quiz about chemistry and its applications. It is not a very high level, as it goes no further than high school level. Have fun! It's great science!
Tough, 10 Qns, kaung30, Nov 17 22
Tough
kaung30
Nov 17 22
3094 plays
16.
  It's a Gas!    
Multiple Choice
 10 Qns
Of the ninety or so naturally occurring elements, only a handful are gases at room temperature. How well do you know your gases?
Average, 10 Qns, delboy22, May 27 20
Average
delboy22
May 27 20
2626 plays
17.
  10 Questions: Chemistry Multiple Choice Quiz    
Multiple Choice
 10 Qns
A chemistry mix. Here goes...
Average, 10 Qns, clarod, Jul 26 17
Average
clarod
Jul 26 17
4299 plays
18.
  It's Chemistry Time, Folks    
Multiple Choice
 10 Qns
Welcome to chemistry class! I hope you get a good grade!
Average, 10 Qns, bigsoxy, Jul 24 13
Average
bigsoxy
3183 plays
19.
  Deadly Chemicals: (In)famous Poisons    
Multiple Choice
 15 Qns
Many chemical substances are toxic to humans and have been the cause of some well-known deaths and killings. This is a quiz on some of most well-known poisons, their structure, properties, action and treatment.
Tough, 15 Qns, mchem, Aug 02 16
Tough
mchem
272 plays
20.
  Chemistry Test    
Multiple Choice
 5 Qns
This is an average difficulty quiz.
Average, 5 Qns, a_valen, Sep 04 21
Average
a_valen
Sep 04 21
9414 plays
21.
  A Quick Introduction to Supramolecular Chemistry    
Multiple Choice
 10 Qns
Do you know what supramolecular chemistry is? Here's you chance to find out!
Average, 10 Qns, jon_watson, Aug 01 05
Average
jon_watson
986 plays
22.
  Basic Chemistry Quiz    
Multiple Choice
 10 Qns
This quiz consist of basic questions from different categories of chemistry to strengthen basic concepts.
Average, 10 Qns, benhyn2001, Nov 17 14
Average
benhyn2001
516 plays
23.
  Keep An Ion It    
Multiple Choice
 10 Qns
Ions are charged particles that can either be of one type of atom or different types of atoms, called polyatomic ions. Without ions there would be no nerve conduction or life processes.
Average, 10 Qns, drbabe, Nov 04 10
Average
drbabe
599 plays
24.
  Can You Smell Chemistry Tonight?    
Multiple Choice
 10 Qns
Elton John has already sung about feeling love tonight, but here I am to see if you can feel chemistry, and recognise chemicals and their smells. Sing along!
Average, 10 Qns, angikar, Jan 23 19
Average
angikar
Jan 23 19
290 plays
25.
  Some Tough General Chemistry Questions    
Multiple Choice
 5 Qns
Just a few hard questions from my general chemistry book (most of which I forgot) to test your knowledge. I hope this is not too hard!
Tough, 5 Qns, boredatwork, Apr 09 10
Tough
boredatwork
3742 plays
26.
  Scientific Knowledge: For the Chemist    
Multiple Choice
 10 Qns
Hello everyone and welcome to the scientific quiz for the chemists on Funtrivia. I hope you will enjoy this quiz because Everything is Chemistry). Please don't forget to rate it.
Average, 10 Qns, johnnyvin, Feb 28 17
Average
johnnyvin
2259 plays
27.
  Properties of Solutions    
Multiple Choice
 10 Qns
A quiz on both aqueous and non-aqueous solutions.
Tough, 10 Qns, jadeviper, Apr 04 18
Tough
jadeviper
Apr 04 18
708 plays
28.
  Chemistry is Fun    
Multiple Choice
 10 Qns
A chemistry quiz for those who are interested in this subject. I will give you some questions related to chemistry and you have to see if you know the answer. Good luck.
Average, 10 Qns, The_Rubiks, Jun 03 19
Average
The_Rubiks
Jun 03 19
290 plays
29.
  Chemistry Anyone?    
Multiple Choice
 10 Qns
A quiz to test your knowledge of chemistry.
Difficult, 10 Qns, shawn888, May 16 23
Difficult
shawn888
May 16 23
3023 plays
30.
  The Odd One Out: Chemistry Style    
Multiple Choice
 10 Qns
Chemical compounds differ in their structure, physical properties (like colour) and chemical properties (the way they react). You have to identify the chemical that doesn't have the same properties as the other three!
Tough, 10 Qns, mchem, Apr 22 12
Tough
mchem
1042 plays
31.
  Chemistry: Fun Trivia Style    
Multiple Choice
 10 Qns
This quiz is on specific elements in the periodic table, specifying compounds, and other calculations.
Average, 10 Qns, ebanks120, Sep 25 16
Average
ebanks120 gold member
317 plays
32.
  10 Inorganic Chemistry Questions    
Multiple Choice
 10 Qns
Inorganic Chemistry has its own right to glory. This quiz is meant for those who have had at least a Freshman's course.
Very Difficult, 10 Qns, sanjith, Aug 24 03
Very Difficult
sanjith
3767 plays
33.
  Chemistry for Geniuses    
Multiple Choice
 10 Qns
If you think you are good at chemistry then try this quiz.
Difficult, 10 Qns, Sohaib, Jun 13 20
Difficult
Sohaib
Jun 13 20
2977 plays
34.
  Organic and Inorganic Chemistry    
Multiple Choice
 10 Qns
This quiz covers both organic and inorganic chemistry. Have fun!
Difficult, 10 Qns, Garhobbs, Oct 01 11
Difficult
Garhobbs
2415 plays
35.
  Advanced Chemistry    
Multiple Choice
 10 Qns
Advanced Chemistry Quiz: My first quiz.
Tough, 10 Qns, NYR12, Jun 16 21
Tough
NYR12
Jun 16 21
2406 plays
36.
  Spy For a Day    
Multiple Choice
 10 Qns
This quiz is basically a series of scenarios in the life of a spy. In order to survive, you must rely on your knowledge of chemistry. Hope you have fun playing this quiz!
Difficult, 10 Qns, Rossell, Jun 28 12
Difficult
Rossell
1457 plays
37.
  On The Bleach    
Multiple Choice
 10 Qns
Let's test your knowledge on this common household chemical. Keep it stored in your cupboard!
Tough, 10 Qns, MartijnK, Sep 07 09
Tough
MartijnK
731 plays
38.
  Chemistry!    
Multiple Choice
 10 Qns
Chemistry is fun to learn about. Do you agree?
Average, 10 Qns, happy1234512, Apr 03 18
Average
happy1234512
Apr 03 18
401 plays
39.
  Famous Chemists And Chemistry Laws    
Multiple Choice
 10 Qns
This quiz covers famous scientists and the laws they came up with.
Tough, 10 Qns, Aitrus33, Dec 13 13
Tough
Aitrus33
3399 plays
40.
  Chemistry Trivia    
Multiple Choice
 10 Qns
Do you want to be a chemist?
Average, 10 Qns, Computer100, Aug 03 14
Average
Computer100
295 plays
41.
  Basic Foundation Chemistry    
Multiple Choice
 10 Qns
This is a fairly basic quiz and could possibly be used for revision for all you budding chemists out there!
Average, 10 Qns, Yismin, Jan 01 09
Average
Yismin
2207 plays
42.
  Good Practice In the Lab (Analytical Chemistry)    
Multiple Choice
 10 Qns
This quiz tests basic laboratory practices and techniques. It will cover a broad range of topics, but will revolve around good practice.
Difficult, 10 Qns, dgbayer, Feb 17 15
Difficult
dgbayer
821 plays
43.
  Chemistry Questions for the Die-Hard Chem Fan    
Multiple Choice
 10 Qns
The questions I've put here are competition-level ones and are, at least, at High School level. Some questions require computation and serious analytical thinking. Recommended for die-hard chemistry enthusiasts.
Difficult, 10 Qns, metamorphmagus, Jun 05 13
Difficult
metamorphmagus
806 plays
44.
  Is There Something Wrong?    
Multiple Choice
 10 Qns
I will give you some statements related to chemistry and you have to identify if there is are any mistakes. The questions can be of Yes/No type as well as Multiple Choice type. Have fun!
Average, 10 Qns, Sonu123, Apr 05 15
Average
Sonu123
240 plays
45.
  What do you know about Inorganic Chemistry?    
Multiple Choice
 5 Qns
This quiz contains Inorganic Chemistry, in all its glory.
Very Difficult, 5 Qns, sanjith, May 09 06
Very Difficult
sanjith
3054 plays
46.
  General Chemical Issues    
Multiple Choice
 10 Qns
The quiz contains some general chemistry facts questions.
Very Difficult, 10 Qns, and762, Jan 24 03
Very Difficult
and762
1477 plays
47.
  High level inorganic compounds quiz    
Multiple Choice
 10 Qns
This quiz is designed for those having some good knowledge of inorganic chemistry.
Difficult, 10 Qns, and762, Oct 23 13
Difficult
and762
911 plays

Chemistry Mix Trivia Questions

1. Used as a white food coloring, white pigment in arts and crafts and as sunscreen, which dioxide is naturally found as rutile and brookite?

From Quiz
The Great White Part 7: Chalky Compounds

Answer: Titanium dioxide

You would be unable to find carbon dioxide or chlorine dioxide as a mineral - both are gases at room temperature (and the latter is a very unstable, strong oxidant used as a disinfectant). Silicon dioxide is ubiquitous as quartz and sand, among many other forms, but the substance asked for in this question is titanium dioxide. Its high reflectivity, especially in powdered form (which gives it its white color), can effectively protect an underlying material from light even with a thin layer. In spite of widespread use, some health concerns regarding titanium dioxide, particularly in nanoparticle form, exist. Question submitted by WesleyCrusher.

2. Can you smell the soil tonight? The scent of petrichor! It's enough for this bicyclic alcohol. To spread in the air!

From Quiz Can You Smell Chemistry Tonight?

Answer: Geosmin

Geosmin has the chemical formula C12H22O, and its name is derived from the Greek words 'geo', meaning 'earth', and 'osmos', meaning 'smell'. Geosmin is formed by cyanobacteria and the gram-positive bacteria 'Streptomyces'. Geosmin can be smelt when it rains on a dry soil. It decomposes under acidic conditions.

3. Metallic hydroxides are also known by which name?

From Quiz Basic Chemistry Quiz

Answer: Bases

Metallic hydroxides are called bases. All bases have hydroxide as the only negative radical. They are soapy and bitter in taste. Their pH values are greater than seven and they turn red litmus paper blue.

4. A tincture of this non-metal is applied to cuts and wounds as an antiseptic. Which non-metal am I talking about?

From Quiz The Uses of Various Chemical Substances

Answer: iodine (I)

A tincture of iodine contains iodine in ethyl alcohol (the solvent), mixed with some potassium iodide (KI). Methyl alcohol is not used as it is poisonous. This solution is reddish brown in colour. When applied on cuts and wounds, iodine, being an antiseptic, helps prevent infections. Iodine can also be used to get relief from pain when it is mixed with petroleum jelly to make a paste.

5. Ions that have a positive charge are called what?

From Quiz Chemistry!

Answer: cations

An ion is a atom that has either lost or gained electrons. The ions that have the positive charge are called cations. The ions that have the negative charge are called anions. Here is how ions become positively or negatively charged: Ions are atoms with a gain or loss in electrons. The charges depend on the amount of the electrons. The ion is positively charged if it has lost one or two electrons, and therefore becomes a cation. If the ion has gained one or two electrons then it is negatively charged and therefore is an anion.

6. If an isotope of boron has a mass number of eleven, how many neutrons does it have?

From Quiz Chemistry Trivia

Answer: 6

Boron has five protons. A neutral boron atom would also contain five neutrons, but isotopes are elements where the amount of neutrons differ from the amount of protons.

7. This compound donates a proton. Therefore...

From Quiz The Beautiful Logic of Chemistry

Answer: It is an acid

The Bronsted-Lowry definition of an acid is anything that donates a proton. A proton is a hydrogen ion, as a hydrogen atom is (usually) one electron whizzing around one proton. In contrast to an acid, a base is anything which accepts a proton. The trap some may have fallen into is putting "It is an ion" as an answer. True, upon losing a hydrogen ion, many compounds will become ionised themselves (after all, they are losing a positively charged entity and so are likely to be left negatively charged). However, this is not part of the definition of an acid and so cannot be known for certain from the predicate. This answer would only be true if the compound was uncharged to begin with.

8. Julia Roberts portrayed activist Eric Brockovich whose law firm represented residents in the area near a PG & E power plant. What ion did the suit claim poisoned the water?

From Quiz Keep An Ion It

Answer: hexavalent chromium

The plaintiffs won their lawsuit although the money didn't amount to much per residents near the plant. Erin Brockovich was rewarded with a million dollar check and a job in the law firm. An interesting fact is that Erin did memorize all the phone numbers and addresses of the 600 plus plaintiffs. She claims that she did this because of the learning disability dyslexia.

9. What class of matter is a solution?

From Quiz Properties of Solutions

Answer: Homogeneous mixture

All solutions are composed of one substance uniformly dispersed in another, which is a property of homogeneous mixtures. Heterogeneous mixtures consist of a substance not uniformly dispersed through another substance, like sand in water. A compound is a combination of elements that is uniform throughout, while an element is only made up of atoms having the same atomic number or number of protons.

10. What is the active ingredient in laundry bleach?

From Quiz On The Bleach

Answer: Sodium Hypochlorite

A solution of 3 to 6 percent of sodium hypochlorite in water is commonly called bleach.

11. Why shouldn't you touch your beaker or weigh boat with your bare hands when weighing out a sample?

From Quiz Good Practice In the Lab (Analytical Chemistry)

Answer: Your hands will either soak up moisture from or add moisture to the outside of the vessel, which introduces random error.

Although this effect may not be so significant when measuring large quantities of mass, being careful about this can be the difference between 99% yield and 65% yield. The error truly is random. I personally usually remove mass from a beaker by touching it, while other people add mass. My reasoning is because my hands are dry, they may suck up any moisture already present on the outside surface.

12. The word "Plumber" is derived from the name of which element?

From Quiz Think Chemistry

Answer: Lead

The chemical symbol for lead is Pb. This is derived from the Latin "plumbum". Lead is a dull grey metal with atomic number 82.

13. What do you use to work out the formula of an ion?

From Quiz Chemistry

Answer: Balance the charges on each of the components in the compound.

Balancing the charges or counting the number of electrons in the outer shells of the atoms are two ways to find out a formula of an ion. eg. Ba2+ and F1- =BaF2 You should never guess or get the information from the internet, because it is likely to be wrong.

14. The atomic masses in the periodic table are not integral numbers. For example, carbon is listed as 12.011 amu (atomic mass unit) instead of 12.000 amu. Why?

From Quiz Chemistry Questions for the Die-Hard Chem Fan

Answer: Atomic masses listed in the periodic table are weighted averages of isotopic masses.

The atomic masses listed on the periodic table are, actually, average atomic masses. The average atomic mass is the summation of the products of an element's isotopic masses and its relative abundance (in percent). For example, carbon has two common isotopes: C-12 and C-13. C-12 is 98.9% abundant and has a mass of 12.000 amu, whereas C-13 is 1.1% abundant and has a mass of 13.0033 amu. Computing for carbon's average atomic mass: (12.0000 * 0.989) + (13.0033 * 0.011) = 12.011 amu.

15. Ready? All right, here's your first question. Chemistry is such a broad science that it is sometimes divided in to five major branches. What are these branches?

From Quiz It's Chemistry Time, Folks

Answer: Physical, Inorganic, Biochemistry, Analytical, and Organic

Physical chemistry deals with applying physics to the study of matter. It's also probably the most important branch. Inorganic chemistry deals with stuff that is chemically composed of elements other than carbon. The branch of Biochemistry concerns itself with living things. Analytical chemistry deals with analyzing and finding out what substances are present in a particular material and how much of each substance is present. Finally, organic chemistry deals with substances that are compounds of carbon.

16. What property do all metals share?

From Quiz Fun Chemistry

Answer: They conduct electricity.

All metals conduct electricity. It is just that some are good conductors, while some are poor ones. Not all metals are hard, some are in the alkaline metal group and are soft. Most metals form basic oxides, some form amphoteric oxides. Not all metals react with water.

17. Which gas, finally isolated in 1866, is pale yellow in colour, and is both highly toxic and corrosive?

From Quiz It's a Gas!

Answer: fluorine

Early experiments with hydrofluoric acid often ended in tragedy, due to its highly corrosive and toxic nature.

18. What is supramolecular chemistry? Supramolecular chemistry has been defined as...

From Quiz A Quick Introduction to Supramolecular Chemistry

Answer: Chemistry beyond the molecule

While it is true that supramolecules are generally large, it is not necessarily true that all supramolecules are. Supramolecular chemistry is primarily concerned with the intermolecular forces between specific molecules. It is said that molecules are to supramolecules as atoms are to molecules.

19. What is an empirical formula?

From Quiz Basic Foundation Chemistry

Answer: The simplest ratio of atoms of each element in a compound

If a formula contains the actual numbers of the atoms, it is known as a molecular formula. For example, the molecular formula of ethane is C2H6, (it contains 2 carbons and 6 hydrogens) but its empirical formula is CH3. The mean mass of the atoms is the Ar, or relative atomic mass, and the sum of the particles in the nucleus is called the mass number.

20. As we all are aware, lasers have become a part of our lives. From surgeries to supermarkets, they are everywhere. In the most common laserbeam, which two gases are combined to form the laser?

From Quiz Scientific Knowledge: For the Chemist

Answer: helium and neon

The common red of the supermarket scanner is the combination of helium and neon.

21. The purity of an ester can be checked from which of its properties before being used as a food flavouring?

From Quiz Chemistry for Geniuses

Answer: boiling point

A pure compound has a fixed boiling point at a fixed pressure. An impure ester would have a range of boiling points.

22. Molecular fluorine reacts with water. What are the resulting gaseous compounds? 1. oxygen 2. HF 3. HOF 4. (HF)2

From Quiz High level inorganic compounds quiz

Answer: 1 + 2

Fluorine reacts with water much different than the other halogens, 2*F2 + 2*H2O = 4*HF + O2 .

23. Which compound, when added to aqueous iron(II) sulphate, takes part in a redox reaction?

From Quiz Organic and Inorganic Chemistry

Answer: potassium manganate(VII)

Aqeuous iron(II) salts act as a reducing agent, while potassium mangante(VII) is an oxidising agent. The end product of the reaction gives a colorless or pale yellow solution.

24. For atoms that contain more than one electron, the Pauli Exclusion Principle states that:

From Quiz Some Tough General Chemistry Questions

Answer: no 2 electrons in an atom can have the same four quantum numbers

The correct answer is that no 2 electrons can have the same four quantum numbers. This won Pauli the Nobel prize in 1945.

25. Who disproved the Rutherford model of the atom?

From Quiz Chemistry

Answer: Bohr

26. States that the relationship between the temperature and volume of a gas is directly proportional

From Quiz Famous Chemists And Chemistry Laws

Answer: Charles's Law

The volume of a confined gas is directly proportional to the absolute temperature, provided that the pressure remains constant.

27. Which alkaline earth metal is a silvery white, burns the brightest white of all the metals, and in its carbonate form is used for weightlifting and rock climbing?

From Quiz The Great White Part 7: Chalky Compounds

Answer: Magnesium

Magnesium, with the atomic number 12, is the 9th most abundant element in the universe. It is also one of the 11 essential elements in the human body, necessary for proper bone formation, protein synthesis, muscle and nerve function, blood glucose control, and blood pressure regulation. Joseph Black, a Scottish physicist and chemist, discovered magnesium in 1725 and named it for the Greek district of Magnesia. The compound magnesium carbonate is the white substance used by weightlifters and rock climbers to make their hands less slippery. Question submitted by pitegny.

28. Can you smell furaneol? Used in perfumery! It's enough in dilute solutions. To give the smell of this fruit!

From Quiz Can You Smell Chemistry Tonight?

Answer: Strawberry

Furaneol has the chemical formula C6H8O3. It has two enantiomers, only one of which is responsible for the characteristic 'strawberry' smell. Furaneol is also present, to a small extent, in the smell of pineapples. Furaneol is also soluble in organic solvents. It consists of a pentagonal ring, whose one vertex is an oxygen atom.

29. A salt is a substance which, on dissolving in water, gives hydroxyl ion as the only negatively charged ion. Is the statement wrong?

From Quiz Is There Something Wrong?

Answer: Yes, salt isn't the right substance - it should be an alkali

An alkali is a substance that gives hydroxyl ion as the only negatively charged ion on dissolving in water. Acid is a substance that gives hydronium ion as the only positively charged ion on dissolving in water. Salt is a substance formed as the product when an acid reacts with a base. Alkali will be the appropriate answer as alkalis are soluble in water and not all bases are.

This is category 6844
Last Updated Mar 23 2024 5:45 AM
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