M19 L1 Notes Flashcardizz - Chemical Changes

Front

A chemical reaction is a change in which one or more substances are converted into __________ substances.

Back

new

Front

How do you balance the equation: Li(s) + Br₂(g) ⟶ LiBr(s)?

Back

Add a coefficient of 2 to Li(s) and LiBr(s).

Front

What is the molar mass of magnesium chloride, MgCl₂(s)?

Back

95.21 g/mol

Front

Balance the equation: ______ Fe(s) + ______ Cl₂(g) ⟶ ______ FeCl₃(s)

Back

2 Fe(s) + 3 Cl₂(g) ⟶ 2 FeCl₃(s)

Front

When sodium reacts with bromine to form sodium bromide, the product(s) __________.

Back

Is sodium bromide.

Front

What is a chemical change?

Back

A process where substances transform into new substances with different properties.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is a reactant in a chemical reaction?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

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

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.