(Q2) Benchmark Review (Set #1)

A reaction in which more energy is absorbed by the reactants than released by the products.

• exothermic reaction

• endothermic reaction

Tags

NGSS.HS-PS1-4

A reaction in which more energy is released by the products than is absorbed by the reactants.

• exothermic reaction

• endothermic reaction

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

During an endothermic reaction...

• temperature increases

• temperature decreases

• temperature stays constant

• temperature increase first then decreases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

During an exothermic reaction...

• temperature increases

• temperature decreases

• temperature stays constant

• temperature increase first then decreases

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In a chemical reaction, atoms separate, rearrange, and...

• new bonds form

• new atoms form

• more energy is created

• some atoms get destroyed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What process is shown?

• chemical reaction

• physical reaction

• conduction

• change of state

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What best explains why atoms are conserved in a chemical reaction?

• the same atoms get rearranged

• different atoms have the same mass

• all atoms are the same mass

• the same substance are still present after the reaction

Tags

NGSS.MS-PS1-5

What signs of a chemical reaction are shown?

(select the BEST TWO)

• light released

• temperature change

• production of a gas

• formation of a precipitate

• color change

What sign of a chemical reaction is shown?

• light released

• temperature change

• production of a gas

• formation of a precipitate

• color change

A yellow liquid is mixed with a clear liquid and a solid forms.

What sign of a chemical reaction is shown?

• light released

• temperature change

• production of a gas

• formation of a precipitate

• color change