Unit 04 Test Review - IPC

Front

What does the law of conservation of mass state?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is a combustion reaction?

Back

A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where one compound breaks down into two or more simpler substances.

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex substance.

Front

What is a single replacement reaction?

Back

A single replacement reaction is a chemical reaction where one element replaces another element in a compound.

Front

What is a double replacement reaction?

Back

A double replacement reaction is a chemical reaction where two compounds exchange ions or bonds to form two new compounds.

Front

What is the role of hydrogen in combustion reactions?

Back

Hydrogen is a key element in combustion reactions, as it reacts with oxygen to produce water and energy.

Front

How can you identify evidence of a chemical reaction?

Back

Evidence of a chemical reaction can include color change, temperature change, gas production, and the formation of a precipitate.

Front

What is a precipitate?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations is important because it ensures that the law of conservation of mass is upheld, showing that the number of atoms of each element is the same on both sides of the equation.