Chemistry Unit Test

Front

Is this equation balanced?

Back

no

Front

What kind of reaction is illustrated below?

Back

chemical

Front

What kind of change is illustrated below?

Back

physical

Front

Which is correct about this chemical equation? Options: Na 1 Br 1 Cl 2 - Na 1 Br 1 Cl 1, Na 1 Br 1 Cl 2 - Na 1 Br 1 Cl 2, Na 2 Br 1 Cl 2 - Na 1 Br 1 Cl 1, Na 1 Br 1 Cl 2 - Na 1 Br 2 Cl 1

Back

Na 1 Br 1 Cl 2 - Na 1 Br 2 Cl 1

Front

How many valence electrons are in this atom of Silicon?

Back

4

Front

Is this a balanced chemical equation?

Back

Yes

Front

Does the equation C2H4O2 + NaHCO3 → NaC2H3O2 + H2O + CO2 support the law of conservation of matter?

Back

Yes

Front

A balance is used to measure mass of an object.

Back

True

Front

The following equation represents photosynthesis. There are 18 atoms of oxygen on the reactant side. How many atoms of oxygen are on the product side of the equation?

Back

18

Front

What are the reactants from this reaction? Options: A, B, C, Both A and B

Back

Both A and B