Chemical Properties and Reactions

What occurs when one or more substances change to produce one or more different substances?

• Chemical property

• Chemical reaction

• Physical property

• Pure substance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a property that requires a chemical interaction to observe?

• Chemical property

• Chemical reaction

• Physical property

• Pure substance

Tags

NGSS.MS-PS1-2

What is a large amount of something?

• Chemical property

• Chemical reaction

• Pure substance

• Bulk quantities

What has definite composition and properties?

• Chemical property

• Physical property

• Bulk quantities

• Pure substance

What is a property that is observed without making changes to the substance?

• Chemical property

• Chemical reaction

• Physical property

• Bulk quantities

If a chemical reaction occurs, the properties of substances before and after the substances interact must be [BLANK]

• different

• the same

• density

• pure substance

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is a property that can be used to identify an unknown substance?

• Elements

• Density

• Bulk quantities

• Pure substance

When a chocolate bar melts, the chemical properties of that substance are [BLANK]

• different

• the same

• density

• pure substance

Tags

NGSS.MS-PS1-4

Select the chemical reactions

• Combining hydrogen and oxygen to create water

• Water is heated and turns to steam

• Water freezes and turns to ice

• An egg is cooked and fried

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Select the physical reactions

• Hydrogen and oxygen combine to form water

• Water is heated and turns to steam

• Water is frozen and turns to ice

• An egg is cooked and fried

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

NGSS.MS-PS3-4