7th Grade MID TERM Review

Front

How does agitation affect the rate of dissolving?

Back

Agitation helps distribute solute particles evenly throughout the solvent, increasing the rate of dissolving.

Front

What is the chemical formula for water?

Back

H₂O

Front

Which action decreases the time it takes for sugar to dissolve in water?

Back

Stirring the water.

Front

What is the effect of increasing the concentration of reactants in a chemical reaction?

Back

Increases the reaction rate.

Front

What is the effect of increasing temperature on the solubility of most solid solutes in water?

Back

Increases solubility.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

Define solubility.

Back

Solubility is the ability of a substance to dissolve in a solvent at a given temperature and pressure.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution.

Front

Explain the term 'reaction rate.'

Back

Reaction rate is the speed at which reactants are converted into products in a chemical reaction.