Chemical Reactions

General

100

The reactants and the products of this chemical reaction: oxygen + hydrogen yields water

Reactants are oxygen and hydrogen; product is water

200

The arrow pointing down on the product side indicates a _____ was formed.

What is precipitate?

300

What side can you use the up or down arrows on?

What is the product side?

400

Anytime an acid is mentioned in a word problem, you need to put this behind it.

What is (aq)?

500

List all 7 diatomic elements.

What is hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine, and iodine?

Writing Chemical Formulas

100

Write the chemical formula for: calcium carbonate.

What is CaCO3

200

Write the formula for lithium sulfate.

What is Li₂SO_4?

300

Write the formula for nickel (III) oxide.

What is Ni₂O₃

400

Write the formula for iron (II) oxide.

What is FeO.

500

Write the formula for mercury (II) hydroxide.

What is Hg(OH)₂

Writing Chemical Equations

100

Write the unbalanced equation for: potassium + water yields hydrogen + potassium hydroxide.

What is K + H2O yields H2 + KOH

200

Write the unbalanced equation for: iron + oxygen yields iron (III) oxide.

What is Fe + O2 yields Fe2O3.

300

Write the unbalanced chemical equation for: copper + sulfur yields copper (I) sulfide.

What is Cu + S yields Cu2S.

400

Write the unbalanced chemical equation for: sodium chloride (solid) yields sodium gas and chlorine gas

What is NaCl (s) yields Na (g) + Cl2 (g)

500

Write the unbalanced chemical equation for: magnesium + hydrogen chloride yields magnesium chloride and hydrogen.

What is Mg + HCl yields MgCl2 + H2.

Symbols and Formulas

100

An arrow with a triangle on top.

What is heat or being heated?

200

The formula for sodium hydroxide.

What is NaOH?

300

Symbol for Fluorine

What is F₂?

400

Formula for silver chlorate.

What is AgClO₃?

500

Formula for magnesium nitrate.

What is Mg(NO₃)₂?

Miscellaneous

100

Matter is neither created nor destroyed in a chemical reaction and mass is neither gained nor lost through a chemical reaction. This is called the ___.

What is Law of Conservation of Matter?

200

The large number at the beginning of an element or compound that indicates the number of molecules of an element/compound.

What is a coefficient?

300

The symbol (l) means ____in a chemical equation.

What is liquid?

400

An up arrow on the product side indicates that a ____ is formed.

What is a gas?

500

The difference between (l) and (aq) is ___.

What is (l) means the element is in a liquid state; (aq) means the element or compound is dissolved in water (can be a gas OR solid dissolved in water)