Chemical Reaction Properties

Why are chemical equations always balanced? Select ALL that apply.

• Matter cannot be created.

• Matter cannot be destroyed.

• Matter can only be rearranged/conserved.

• Matter doesn't matter.

Tags

NGSS.MS-PS1-5

Which of the following is a chemical change?

• water freezes to form ice

• sugar dissolves in water

• gasoline burns in a car engine

• a piece of metal expands when it is heated

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the reaction methane + oxygen turns into carbon dioxide + water, the methane and oxygen are called _______________.

• reactants

• products

• neutrals

• energizers

Tags

NGSS.MS-PS1-5

How do chemical reactions turn substances into new substances?

• with burning acid

• the molecules mix together and create new substances

• the atoms break apart and combine back together in new ways

• the ionic compounds mix in water to form solutions

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-1

The new chemicals after a reaction are called:

• Precipitate

• Reactants

• Products

• chemical equation

Tags

NGSS.MS-PS1-2

The new chemicals before a reaction are called:

• Precipitate

• Reactants

• Products

• chemical equation

Tags

NGSS.MS-PS1-2

Which is the correct word equation for photosynthesis?

• water + glucose + oxygen ---> energy + carbon dioxide

• energy + oxygen + carbon dioxide ---> water + glucose

• water + carbon dioxide + energy ---> glucose + oxygen

• glucose + oxygen ---> water + carbon dioxide + energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

The process by which one or more substances change to produce one or more different substances

• Chemical Process

• Reactant

• Chemical Reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A solid that is deposited from a solution

• Solid

• Liquid

• Product

• Precipitate

Tags

NGSS.MS-PS1-2

A substance that takes part in and undergoes change during a reaction

• Product

• Molecule

• Reactant

Tags

NGSS.MS-PS1-5