4Al + 3O2 -- 2Al2O3 How many oxygen atoms?

4Al + 3O2 -- 2Al2O3 How many aluminum atoms?

The number of atoms on the LEFT side (Reactants) _______ equals the number of atoms on the RIGHT side (Product) of a chemical equation.

Two or more different elements bonded together is a ____

Which of the following represents a COMPOUND?

Two or more elements bonded together is always a

A compound is always a molecule but a molecule isn't always a compound.

C2H5NO How many different ELEMENTS are in this compound?

C2H5NO How many TOTAL ATOMS are in this compound?

C2H5NO How many atoms of Carbon (C) are in this compound?

When reading a chemical equation the left side of the equation is known as the___

When reading a chemical equation the right side of the equation is known as the___

When reading a chemical equation the arrow is read as___

Compounds are expressed by symbols and numbers and written as a chemical ___

A diagram of a Water Molecule (H2O) shows two hydrogen atoms and one oxygen atom have formed a chemical ___

An expression of symbols and numbers that represent that a chemical change has taken place is known as a chemical ___

What are the most common elements in Living Things? (from most abundant to least)

Identify which one is a molecule

What are the most common elements in the Ocean? (from most abundant to least)

What are the most common elements in the Earth's Crust? (from most abundant to least)

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