Chem Comm 1D review

A symbolic expression summarizing a chemical reaction, such as H₂ (g) + O₂ (g) → 2 H₂O (g)

• Chemical Equation

• Chemical reaction

• Chemical Symbol

• Subscript

The process of forming new substances from reactants that involves the breaking and forming of chemical bonds.

• Chemical Formula

• Chemical reaction

• chemical equation

• subscript

A solid mixture consisting of atoms of two or more metals

• chemical compound

• atom

• alloy

• products

The starting materials in a chemical reaction

• Reactants

• Products

• Subscripts

• Coefficients

An abbreviation of an element’s name, such as N for nitrogen or Fe for iron

• atom

• molecule

• chemical formula

• chemical symbol

In the following chemical equation: FeO + CO --> Fe + CO₂, which compound(s) are the products?

• Fe only

• FeO only

• FeO and CO

• Fe and CO₂

How many hydrogens are in 4H₂O?

• 6
• 8
• 2
• 4

How many oxygens are in 2Al(OH)₃?

• 1

• 3

• 6

• 2

How many oxygens are in Al₂(SO₄)₃?

• 4

• 3

• 7

• 12

Chemical equations are balanced with numbers called

• coefficients

• exponents

• subscripts

• symbols