Empirical and Molecular Formulas

How many "C" are in CO₂

• 2

• 1

• 0

• 3

What are Chemical Compounds?

• Molecular formulas

• mixtures of two or more elements non chemically bonded

• chemical substances made from more than one element chemically bonded together

• chemical substances made from more than one element not chemically bonded together just sitting next to each other

How are Chemical compounds expressed as?

• Chemical Chart

• Chemical name

• Chemical Table

• Chemical Formula

What does the periodic table have?

• metals and non-metals

• metals, metalloids, and non-metals

• just a little bit of metals and lots of non-metals

• only active and strong metals

How many hydrogens "H" are in CH₄

• 1

• 2

• 3

• 4

How many Carbons "C" are in C₁₈H₃₄O₃

• 18

• 34

• 3

• 37

How many Sodium "Na" are in NaCl? (table salt)

• 1

• 0

• 2

• 3

Which molecular formula only has 12 hydrogens "H"?

• C₄H₁₀ (butane)

• C₅H₁₂ (pentane)

• C₁₂H₂₂O₁₁ (sugar)

• C₈H₁₀N₄O₂ (caffeine)

What is the symbol for hydrogen?

• h

• H

• Hy

• HY

What is the symbol for helium

• HE

• hE

• he

• He