2nd quarter practice

When you add water to a test tube that contains sulfur, the sulfur floats on the top. The sulfur is

• aqueous

• blue

• insoluble

• dissolved

Tags

NGSS.MS-PS1-2

When you add water to a test tube that contains confectioner's sugar, all the sugar dissolves. What type of solution is formed?

• a solvent solution

• an aqueous solution

• an insoluble solution

• a blue solution

You have a solution of sodium chloride and water. The SODIUM CHLORIDE is the

• insoluble

• element

• solvent

• solute

In a test tube, sodium chloride is continually added to water and shaken. Eventually, undissolved crystals are visible at the bottom of the test tube. This solution has become

• saturated

• density

• unsaturated

• crystallized

The substance present in the larger proportion is called ...

• solvent

• solution

• solute

• crystallized

To increase the rate of solution (dissolving) for solid solutes in a liquid, you can

• stir

• add heat

• crush to a powder

• stir, add heat, and crush the powder

How can you tell no more sugar dissolves?

• see sugar floating at the top of the test tube.

• check the density of sugar at that temperature.

• see that the solution was thick and sticky.

• see sugar at the bottom of the test tube.

A solution that will not dissolve any more solute at a given temperature is said to be

• blue

• saturated

• unsaturated

• sticky

Sterling silver is a solid solution consisting of 92.5 % silver and 7.5 % copper. Silver and copper are both metals. The solid formed is called an

• alloy

• tic tac

• element

• reactant

Different substances have .... solubilities.

• the same

• equal

• different

• similar