Chemical Reactions

Chemical Reactions

Assessment

Assessment

Created by

Morgan Henry

Science

9th Grade

22 plays

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20 questions

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1.

Multiple Choice

3 mins

1 pt

In a chemical equation, is it true that -

the reactant side and product side can have different numbers of atoms for each element

there can be different elements on the reactant side and the product side

an element or compound must be accompanied by a phase change

the coefficients indicate the number of molecules of each reactant used and the number of molecules of each product made

2.

Multiple Choice

3 mins

1 pt

The reactants are on the left side of the chemical equation.

True

False

3.

Multiple Choice

3 mins

1 pt

Media Image

How many atoms in all are in a molecule of serotonin?

C10H12N2O

22

24

25

4

4.

Multiple Choice

3 mins

1 pt

When materials combine to form new compounds it is a chemical change. Which example is a chemical change?

baking powder fizzing

water boiling

ice melting

sugar cube dissolving

5.

Multiple Choice

3 mins

1 pt

Which is an example of a chemical reaction?

paper cut into small pieces

chocolate melting in a pan

flour and sugar mixed in a bowl

cookies baking in an oven

6.

Multiple Choice

3 mins

1 pt

How many total atoms are in this compound? Al2O3

2

5

6

3

cartoon woman

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