atoms and molecules practice

Carbon dioxide (CO₂) contains how many atoms of oxygen?

• 0
• 1
• 2
• 3

C₁₂H₂₂O₁₁ has how many carbon atoms?

• 1

• 11

• 12

• 45

The chemical name of water

• Ice

• Snow

• H₂O

The substances listed on the left side of a chemical equation are the

• Products
• Coefficients
• Precipitates
• Reactants

The central region of an atom where its neutrons and protons are is called it's __________ .

• nucleus

• electron cloud

• core

• center

All matter is made of 

• energy 
• atoms 
• electrons 
• compounds 

The substances listed on the right side of a chemical equation are the

• Yields
• Reactants
• Products
• Precipitates

2 H₂O gives us life! How many total atoms are represented here?

• 2

• 4

• 6

When there is no subscript after an element's symbol, it means there are how many atoms of that element?

• 0
• 1
• 2
• unknown

TRUE OR FALSE: Molecules are made up of elements

• True

• False