IQWST - How Can I Make New Stuff From Old Stuff?: Beginning / End Test

Front

What observations can be made in a chemical reaction involving road salt and baking soda?

Back

Temperature change, Production of a gas, Production of a precipitate, All of the above.

Front

How can a chemical reaction be represented?

Back

By using a word equation, By using a model, By using a chemical formula, All of the above are correct.

Front

What is a non-property among the following: Solubility, Hardness, Volume, Density, Melting Point?

Back

Volume.

Front

Which of the following is an example of a mixture? 24k Gold, Chalk, Drinking water, Pepperoni Pizza?

Back

Pepperoni Pizza.

Front

In a chemical reaction involving Copper and Acetic Acid, what are the products?

Back

Copper Acetate & Hydrogen Gas.

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into new substances (products).

Front

What is the definition of a mixture?

Back

A combination of two or more substances where each retains its own properties.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the difference between a chemical change and a physical change?

Back

A chemical change results in the formation of new substances, while a physical change does not.