Chemical Rxn Test

Front

What is a physical change?

Back

A physical change is a change that alters the form or appearance of a substance but does not make the substance into another substance.

Front

What are the balanced products of the reaction H2SO4 + MgCO3?

Back

The balanced products are MgSO4 + CO2 + H2O.

Front

Is the equation H2SO4 + MgCO3 → MgSO4 + CO2 + H2O balanced?

Back

No, the equation is not balanced.

Front

Label the change: iron oxidizing to form rust.

Back

Chemical change.

Front

Label the change: ice melting to form liquid water.

Back

Physical change.

Front

Label the change: methane gas burning.

Back

Chemical change.

Front

Label the change: silver corroding.

Back

Chemical change.

Front

Label the change: a crayon breaking.

Back

Physical change.

Front

What does the law of conservation of mass state?

Back

After a chemical reaction, the mass of products is always equal to the original mass of reactants.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that involves the transformation of one or more substances into different substances.