Chemical Reactions

Density and color are examples of which kind of property?

• Physical

• Chemical

Which of these would be a chemical property?

• Solid

• smooth texture

• flammable

• conducts heat

Tags

NGSS.MS-PS1-2

Which type of change alters the form or appearance of a substance but does not change it into another substance?

• physical change

• chemical change

• reaction

• precipitate

A change in matter that produces one or more new substances is called a

• physical change

• chemical change

• reaction

• precipitate

Tags

NGSS.MS-PS1-2

Which of these is an example of a physical change

• freezing water

• baking a cake

• burning a log

• milk spoiling

Tags

NGSS.MS-PS1-4

Substances formed as a result of a chemical reaction are called:

• catalysts

• enzymes

• products

• reactants

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a physical change, some of the physical properties of the substance may be altered and the chemical composition remains the same.

• true

• false

Tags

NGSS.MS-PS1-4

Which of these are clues that a chemical change is taking place?

• solid formation

• gas production

• color change

• all of the above

Tags

NGSS.MS-PS1-2

In an exothermic reaction energy is:

• absorbed

• released

• converted to mass

• synthesized

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

CaCO₃ represents a chemical________

• symbol

• formula

• subscript

• reaction

Tags

NGSS.MS-PS1-1