Math Chemistry

Question 1

Word Equations

Answer 1

• Reactants -> Products.

- E.g. Calcium carbonate + sulfuric acid → calcium sulfate + carbon dioxide + water.

Question 2

Formula Equations

Answer 2

• E.g. CaCO3 + H2SO4 → CaSO4 + CO2 + H2O.

Question 3

Law of Conservation of Mass

Answer 3

• During a chemical reaction, atoms cannot be created or destroyed.
• The mass of the reactants must equal the mass of the products.

Question 4

Balancing Equations

Answer 4

• The unbalanced chemical equation is given to you.
• Make a list of all of the elements on each side under the equation for both the reactants and products as shown above.
• Next to each element of the list put the number of atoms that are in each of the elements.
• Multiply the number of atoms in each element until both sides are equal.
• Put the number, of how much you multiplied the element by and place in front of that element or compound in the equation