Forming a Precipitate

What is a precipitate?

• A solid that forms from a chemical reaction in a liquid solution

• A gas that forms from a chemical reaction in a liquid solution

• A liquid that forms from a chemical reaction in a solid solution

• A substance that does not form in a chemical reaction

Tags

NGSS.MS-PS1-2

How can you identify a precipitate?

• By its color

• By its temperature

• By its smell

• By its shape

Which of the following is an example of a precipitate?

• Water

• Salt

• Sugar

• Milk

Tags

NGSS.MS-PS1-2

What happens when two solutions react to form a precipitate?

• The solutions become more transparent

• The solutions become more colorful

• The solutions become less dense

• The solutions become cloudy

Tags

NGSS.MS-PS1-2

Which of the following is NOT a way to separate a precipitate from a solution?

• Filtration

• Evaporation

• Decantation

• Distillation

What is the chemical equation for the formation of a precipitate when silver nitrate reacts with sodium chloride?

• AgNO3 + NaCl -> AgCl + NaNO3

• AgCl + NaNO3 -> AgNO3 + NaCl

• AgCl + NaCl -> AgNO3 + NaNO3

• AgNO3 + NaNO3 -> AgCl + NaCl

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a common use of precipitates?

• Making fireworks

• Producing electricity

• Cleaning windows

• Cooking food

What is the term for the process of forming a precipitate?

• Precipitation

• Condensation

• Sublimation

• Evaporation

Which of the following is an example of a double displacement reaction that forms a precipitate?

• Burning wood

• Mixing vinegar and baking soda

• Digesting food

• Mixing hydrochloric acid and sodium hydroxide

What is the purpose of adding a precipitating agent in a chemical reaction?

• To speed up the reaction

• To slow down the reaction

• To prevent the formation of a precipitate

• To promote the formation of a precipitate