U5 Flashcard - Balancing Chemical Rxns & Types of Rxns

Front

What must be true about the number of atoms in a chemical reaction?

Back

The number of atoms you begin with in a chemical reaction must be the same as the number of atoms you end with.

Front

What does the arrow in a chemical equation represent?

Back

The arrow in a chemical equation represents 'yields'.

Front

What does 'endo' mean in the context of chemical reactions?

Back

'Endo' means 'absorbed'.

Front

What happens to heat in an exothermic reaction?

Back

In an exothermic reaction, heat is given out.

Front

Define chemical reactions.

Back

Chemical reactions are a process in which atoms rearrange to form new substances.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.