characteristics of chemical reactions review

a process where the bonds between atoms are broken and a new arrangement of bonds between different atoms is formed.

• physical change

• chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

a solid substance that forms and separates from a solution and may indicate that a chemical reaction has occurred.

• precipitate

• color

• odor

• temperature change

Tags

NGSS.MS-PS1-2

An unexpected change in _____________________ is a sign that a chemical reaction may have occurred.

• precipitate

• color

• odor

• temperature change

Tags

NGSS.MS-PS1-2

Substances giving off a smell, or ________________, while being combined is also an indicator of a chemical reaction.

• precipitate

• color

• odor

• temperature change

Tags

NGSS.MS-PS1-2

___________________ increase or decrease and the production of light are both signs that a chemical reaction may have occurred.

• precipitate

• color

• odor

• temperature

Tags

NGSS.MS-PS1-2

In a chemical process, atoms that make up a substance are regrouped into different _____________________ to form new substances with different properties.

• bonds

• elements

• molecules

• compounds

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Smallest part of a substance

• molecule

• atom

• compound

The substances initially involved in a chemical reaction

• reactants

• products

Tags

NGSS.MS-PS1-5

The substance that is produced from a chemical reaction

• reactants

• products

Tags

NGSS.MS-PS1-5

two or more elements or compounds combine to make a more complex substance

• synthesis

• decomposition

• single replacement

• double replacement