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Chemistry Knowledge Challenge

A vibrant and engaging chemistry-themed background featuring elements, molecules, and lab equipment to represent knowledge in chemistry

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

11 Questions3 MinutesCreated by ExploringElement42

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?

Which of these elements have the least affinity to gain electrons?

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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