Balancing Equations

What is a substance that speeds up the rate of a reaction?

• Catalyst

• Coefficient

• Reactant

• Product

What is an equation in which each side has the same number of atoms of each element called?

• Skeleton equation

• Balanced equation

• Catalyst

• Coefficient

Tags

NGSS.MS-PS1-5

What is symbolic way of describing a chemical reaction using chemical formulas?

• Word equation

• Sentence

• Chemical equation

• Pictorial view

Substance that will undergo a chemical change are called

• Catalyst

• Coefficient

• Reactant

• Product

Tags

NGSS.MS-PS1-5

A chemical equation that does not indicate the amounts of substances involved is called

• Skeleton equation

• Balanced equation

• Catalyst

• Coefficients

The new substance(s) formed in a chemical reaction

• Catalyst

• Coefficient

• Reactant

• Product

Tags

NGSS.MS-PS1-1

What are the numbers used to balance a chemical equation called?

• Catalyst

• Coefficient

• Reactant

• Product

In the word equation, Iron + copper(II) sulfate -> iron(II) sulfate + copper, a product is

• Iron(II) sulfate

• Copper

• Iron

• Both a and b

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the unbalanced formula equation H2 + S + O2 -> H2SO4, how many substances are reactants?

• 1

• 2

• 3

• 4

The Greek letter delta above the arrow in a chemical equation means

• Yields or produces

• A catalyst is used in the reaction

• The reaction releases energy as heat

• The reactants are heated