Question 1

Which of the following is a primary greenhouse gas responsible for global warming?

Accepted Answer

Carbon dioxide

Answer

Nitrogen

Answer

Argon

Answer

Oxygen

Question 2

What is the chemical formula for sulfuric acid?

Accepted Answer

H2SO4

Answer

NaCl

Answer

NH3

Answer

CO2

Question 3

What is Avogadro's number?

Accepted Answer

6.022 x 10^23

Answer

2.718

Answer

9.81

Answer

3.141

Question 4

What is the primary purpose of a catalyst in a chemical reaction?

Accepted Answer

To increase the rate of the reaction

Answer

To change the products of the reaction

Answer

To absorb excess heat

Answer

To decrease the rate of the reaction

Question 5

What is the chemical symbol for gold?

Accepted Answer

Au

Answer

Cu

Answer

Ag

Answer

Fe

Question 6

Which of the following is a characteristic of an acid?

Accepted Answer

It has a pH below 7

Answer

It is a strong base

Answer

It has a pH above 7

Answer

It is neutral

Question 7

Which of the following is a noble gas?

Accepted Answer

Helium

Answer

Sodium

Answer

Chlorine

Answer

Nitrogen

Question 8

Which of the following elements has the atomic number 26?

Accepted Answer

Iron

Answer

Silver

Answer

Gold

Answer

Copper

Question 9

What is the chemical formula for water?

Accepted Answer

H2O

Answer

NaCl

Answer

NH3

Answer

CO2

Question 10

Which of the following elements is a halogen?

Accepted Answer

Chlorine

Answer

Magnesium

Answer

Iron

Answer

Sulfur

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