Understanding Chemical Reactions

What type of reaction does this formula represent

A + B −> C

• Combination

• Single replacement

• Double replacement

• Combustion

What type of reaction does this formula represent

AB + C −> AC + B

• Combination

• Single replacement

• Double replacement

• Combustion

What AB + C represent

AB + C −> AC + B

• Reactants

• Products

• Replacement

• Chemicals

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What AC + B represent

AB + C −> AC + B

• Reactants

• Products

• Replacement

• Chemicals

What type of reaction does this formula represent

AB −> A + B

• Combination

• Single replacement

• Decomposition

• Combustion

True or False: Every chemical reaction yields the same result, which inevitably means that chemical reactions will all have identical observable properties.

• False

• True

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

True or False: A sign of a chemical reaction is when two shiny substances mix and make a dull substance.

• True

• False

Tags

NGSS.MS-PS1-2

Which is does NOT indicate a chemical change?

• Change in oder

• Change in temperature
• Change in state
• Irregular Change in color

Tags

NGSS.MS-PS1-2

Amount of atoms in an object (a)  

The amount of space an object takes up ​ (b)  

grams/cm³ or grams/milliliters​ (c)  

• Mass
• Volume
• Density

Which of the following is/are TRUE about water. Choose one or more

• Density is 1 g/mL

• Boiling point is 100°C

• Melting point is 32°F

• Freezing point is 32°F

• Boiling point is 212°F

Tags

NGSS.MS-PS1-4