Chemical Reactions Quiz

Posljednje ažuriranje over 7 years ago

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Chemical Reactions Quiz

Posljednje ažuriranje over 7 years ago

Pitanje 1

What characteristics do endthermic reactions have? (select all that apply)

Aborb heat

Temperature increases

Release heat

Temperature decreases

Pitanje 2

What characteristics do exothermic reactions have? (select all that apply)

Absorb heat

Temperature increases

Releases heat

Temperature decreases

Pitanje 3

Select two examples of endothermic reactions.

Cooking an egg

Melting ice cubes

Wood burning

Explosive dynamite

Pitanje 4

Select two examples of exothermic reactions.

Baking soda and vinegar reacting

Hand warmers

Wood burning

Photosynthesis

Pitanje 5

Balance the following equation. Use a separate sheet of paper to show your work.
Pb(OH)2 + HCl → H2O + PbCl2

____ Pb(OH)2 + __2__ HCl → __2__ H2O + ____ PbCl2

____ Pb(OH)2 + __3__ HCl → __2_ H2O + _1___ PbCl2

_2__ Pb(OH)2 + ____ HCl → __2__ H2O + ____ PbCl2

It's alread balanced

Pitanje 1

What characteristics do endthermic reactions have? (select all that apply)

Aborb heat

Temperature increases

Release heat

Temperature decreases

Pitanje 2

What characteristics do exothermic reactions have? (select all that apply)

Absorb heat

Temperature increases

Releases heat

Temperature decreases

Pitanje 3

Select two examples of endothermic reactions.

Cooking an egg

Melting ice cubes

Wood burning

Explosive dynamite

Pitanje 4

Select two examples of exothermic reactions.

Baking soda and vinegar reacting

Hand warmers

Wood burning

Photosynthesis

Pitanje 5

Balance the following equation. Use a separate sheet of paper to show your work.
Pb(OH)2 + HCl → H2O + PbCl2

____ Pb(OH)2 + __2__ HCl → __2__ H2O + ____ PbCl2

____ Pb(OH)2 + __3__ HCl → __2_ H2O + _1___ PbCl2

_2__ Pb(OH)2 + ____ HCl → __2__ H2O + ____ PbCl2

It's alread balanced

Chemical Reactions Quiz

Chemical Reactions Quiz

What characteristics do endthermic reactions have? (select all that apply)

What characteristics do exothermic reactions have? (select all that apply)

Select two examples of endothermic reactions.

Select two examples of exothermic reactions.

Balance the following equation. Use a separate sheet of paper to show your work.____ Pb(OH)2 + ____ HCl → ____ H2O + ____ PbCl2

What characteristics do endthermic reactions have? (select all that apply)

What characteristics do exothermic reactions have? (select all that apply)

Select two examples of endothermic reactions.

Select two examples of exothermic reactions.

Balance the following equation. Use a separate sheet of paper to show your work.____ Pb(OH)2 + ____ HCl → ____ H2O + ____ PbCl2

Balance the following equation. Use a separate sheet of paper to show your work.
Pb(OH)2 + HCl → H2O + PbCl2

Balance the following equation. Use a separate sheet of paper to show your work.
Pb(OH)2 + HCl → H2O + PbCl2