Chemistry Knowledge Challenge
Chemistry Knowledge Challenge
Test your chemistry skills and knowledge with our engaging quiz designed for both students and enthusiasts. Answer 11 carefully crafted questions that cover various concepts in chemistry, from acids and bases to ionic bonds.
Challenge yourself and see how well you know the subject! You will learn:
- The behavior of acids and bases
- Atomic calculations
- Nomenclature of compounds
- The nature of chemical bonds
Phenolphthalein is added to an acid, what color should the solution turn to?
Red
Blue
Colorless
Pink
How many atoms are present in 150 grams of Copper?
2.3 x 10^1
6.0 x 10^23
1.4 x 10^24
3.1 x 10^24
Name the following compound: Ca5 N3
Pentacalcium Trinitrogen
Tricalcium pentacalcium
Trinitrogen pentacalcium
Heptacalcium Trinitrogen
What is the concentration of a substance with the pH of 3.65?
0.87
65.6
0.77
0.02
120 g sample of CaCO3 contains how many moles?
1.4
1.7
1.8
1.2
How many electrons does a Cl ion with a charge of -1 contain?
16
17
18
19
Which of these elements have the least affinity to gain electrons?
Br
I
P
Fr
Which process is used to speed up chemical reactions?
Calorimetry
Activation
Catalysis
Inhibition
What are ions that do not take part in a chemical reaction and are found in solution before and after the reaction?
Spectator ion
Net ion
Charged ion
Neutral ion
If two atoms are bonded in such a way that both members of the pair equally share one electron with the other, what is the bond called?
Polar covalent
Ionic
Metallic
Nonpolar covalent
Which of the four choices is considered the weakest bond in the group?
Covalent
Ionic
Hydrogen bond
Metallic bond
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