Molecular Geometry

Question 1

Identify the role of each substance participating in the reaction.carbon dioxide:

Revolt · Accepted Answer

B: product

Question 2

Each of the items pictured represents a different chemical reaction. Rank these four reactions in order from fastest to slowest.

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C: 3, 1, 4, 2

Question 3

A black powder is added to a clear liquid. Fizzing and bubbling occur, and the test tube becomes hot to the touch.

Revolt · Accepted Answer

A: formation of a gas; C: emission of heat

Question 4

Two solids are combined. After a small amount of heat is applied, an explosion occurs and smoke is released.

Revolt · Accepted Answer

A: emission of heat; B: emission of light; D: formation of gas

Question 5

Two clear liquids are combined. A green solid forms.

Revolt · Accepted Answer

A: color change; C: formation of precipitate

Question 6

Two colorless chemicals combine inside a glow stick. When the chemicals combine, they produce brightly colored light. The glow stick’s temperature does not change.

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B: emission of light; C: color change

Question 7

Bread dough rising:

Revolt · Accepted Answer

A: yes

Question 8

methane:

Revolt · Accepted Answer

A: reactant

Question 9

Adding road salt to an icy street:

Revolt · Accepted Answer

B: no

Question 10

oxygen:

Revolt · Accepted Answer

A: reactant

Molecular Geometry Answers

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