Conservation of Mass and Chemical Equation Concepts

Question 1

Which principle states that the total mass of reactants must equal the total mass of products in a closed system?

Accepted Answer

Conservation of Mass

Answer

Conservation of Energy

Answer

Conservation of Momentum

Answer

Conservation of Charge

Question 2

A representation of a chemical reaction using the names of the reactants and products is known as a:

Accepted Answer

Word equation

Answer

Symbol equation

Answer

Ionic equation

Answer

Balanced equation

Question 3

What type of equation uses chemical formulas to represent the reactants and products?

Accepted Answer

Symbol equation

Answer

Word equation

Answer

Balanced equation

Answer

Net ionic equation

Question 4

The process of adjusting coefficients in a symbol equation to ensure the same number of atoms of each element on both sides is called:

Accepted Answer

Balancing symbol equations

Answer

Equation simplification

Answer

Chemical enumeration

Answer

Formula rearrangement

Question 5

What do symbols like (s), (l), (g), and (aq) represent in a chemical equation?

Accepted Answer

State symbols

Answer

Reaction rates

Answer

Energy changes

Answer

System types

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