Jeopardy

Elements

100

What Is This Element 

H

Hydrogen

200

What Elements Are Used To Make Water

Hydrogen Oxygen

300

What Is The Symbol Of Gold

Au

400

What Is The Symbol Of Sodium

Na

500

What Is The Atomic Mass Of Gold

196.97

Chemical Equations

100

What Is The Left Side Of A Chemical Equation 

Reactants

200

What Is The Right Side Of A Chemical Equation

Products

300

In the expression 3CO_2, what does the number 3 represent?

The Coefficient Indicating The Number of Molecules

400

How many atoms of Oxygen (O) are in 2Ca(OH)₂

4

500

Look at the expression 4Na₂CO₃

• How many Sodium (Na) atoms are there?
• How many Carbon (C) atoms are there?
• How many Oxygen (O) atoms are there?

8 Sodium Atoms

4 Carbon Atoms

12 Oxygen Atoms

Law Of Conservation Of Mass

100

What Is The Law Of Conservation Of Mass

Matter Cannot Be Created Or Destroyed Using A Chemical Eqaution

200

What happens to mass in all chemical reactions

it stays the same

300

If you make a reaction with 10 grams of ingredients, how many will you have 

10 Grams

400

What happens to atoms during chemical reactions 

Atoms do not vanish or appear. They only change places and form new bonds

500

If 12.0 grams of Carbon (C) reacts completely with 32.0 grams of Oxygen (O₂), what is the total mass of Carbon Dioxide (CO₂) produced

By law, the mass of the products must equal the mass of the reactants.
Answer: 44.0 grams of CO₂ is produced.

Changes in Matter

100

What is a physical change?

a change that alters the form or appearance of matter but does not turn any substance in the matter into a different substance

200

What is a chemical change?

a change in which chemicals rearrange atoms to make NEW substances.

300

What is examples of chemical Change?

combustion, electrolysis, oxidation (rusting), tarnishing

400

Sugar and water are combined. Physical or chemical change?

Physical

500

Wood reacts with oxygen to create carbon dioxide and water. Physical or chemical change?

Chemical Change

ELEMENTS, COMPOUNDS & MIXTURES

100

What is an element?

A substance made of only one type of atom.

200

What is a compound?

Two or more different elements chemically bonded together.

300

What is a mixture?

Two or more substances that are physically combined, but not chemically bonded.

400

Classify each as an element, compound, or mixture: gold, water, and salt water.

Gold = element
Water = compound
Salt water = mixture

500

You have a container holding iron filings and sand. You can separate the substances without creating a new substance. Is this an element, compound, or mixture? Explain.

Mixture, because the substances are physically combined and can be separated.