Unit 4 Test: Solubility, Acids, Bases

______ is the most abundant solvent in the world.

• B. oxygen

• C. salt

• D. water

Tags

NGSS.MS-ESS2-4

Substances that have a pH of 8-14 include baking soda, bleach, and ammonia. These substances are called ______.

• A. acids

• B. bases

• C. neutral

When two substances are dissolved into one another (like salt water), this is called a ______; which is a type of mixture.

• A. precipitate

• C. solution

• D. solubility

Sand does not dissolve in water, so it is considered_____.

*Note the prefix "in" means "in, on or not"

• A. insoluble

• B. soluble

• D. dilute

Tags

NGSS.MS-PS1-2

The measurement of how much solute will dissolve in a given solvent at a certain temperature is called its _____.

• B. precipitate

• D. solubility

Tags

NGSS.MS-PS1-2

In the Effect of Temperature on Solubility Lab we discovered that water can hold more potassium nitrate (substance A) at ______temperatures.

• A. higher

• B. faster

• C. colder

Tags

NGSS.MS-PS1-4

Some examples of _______ that we used in class are litmus and pH paper.

• A. acids

• B. bases

• D. indicators

A liquid, such as water, with a pH of 7.0 is considered a(n)______.

• A. acids

• B. bases

• C. neutral

The sugar my mom puts in her tea is the _____ part of the solution.

• A. insoluble

• B. solute

• C. solvent

• D. solution

Substances that have a pH of 1-6 include saliva, cola, vinegar, and coffee. These substances are called_____.

• A. acids

• B. bases

• C. neutral

Tags

NGSS.MS-PS1-2