Acids and Bases Review

Multiple Choice

The model shows some properties of several materials. Which of the following  is the MOST acidic?

• Soap

• Floor Cleaner

• Orange Juice

• Acid Rain

Multiple Choice

Students classify various samples into two groups as shown in the chart. Which describes how these samples were classified?

• A. Group A is mixtures; Group B is solutions.

• B. Group A is pure substances; Group B is mixtures.

• C. Group A is elements; Group B is compounds.

• D. Group a is compounds; Group B is pure substances

Multiple Choice

Students mix two substances together. The starting materials are shown below. After these substances are mixed, what would be the best way to separate the component parts?

• A. Perform a distillation, because the water will boil off, leaving the salt behind.

• B. Use a strong magnet, because the ions in the salt will be attracted to them but the water will not.

• C. Shake it through a series of fine mesh sieves, because the particle sizes are different.

• D. Place the beaker in a bowl of ice, because cooling the solution will cause the salt to melt away.

Multiple Choice

Ian has been learning about different kinds of mixtures at school. While he was helping prepare dinner for his family, he noticed that some of the food they were making were different kinds of mixtures. What kind of mixture was their dinner if they were having spaghetti and meatballs?

• A. Heterogeneous

• B. Homogeneous

• C. solute

• D. Suspension

Multiple Choice

A student drops a bottle of shampoo because his hands were slippery from the shampoo. Other than its slippery feel, what other tests would confirm which type of compound was in the shampoo?

• A. It tastes bitter

• B. It reacts with metals.

• C. It tastes sour

• D. It ruins limestone statues.

Multiple Choice

During our cabbage juice lab, we mixed test tube B with test tube F. There was an "eruption" between the water and baking soda and the vinegar. Which gas is in the bubbles, and why do the bubbles form?

• A. Oxygen gas forms because the acid reacts with the metal.

• B. Carbon dioxide gas forms because an acid reacts with a metal.

• C. Oxygen gas forms because an acid reacts with carbonate ions.

• D. Carbon dioxide gas forms because an acid reacts with carbonate ion.

Multiple Choice

What is created when you mix an acid and a base? For instance a base of of 9 and an acid of 2?

• Base

• Acid

• Solution

• Neutral

Open Ended

The statue of Liberty is made of copper. In 1886 when it was given to us from France, it was still copper color. What could we have done to prevent it from turning green?