Chapter 32-Chemical Formulas And Chemical Equations Flashcards Preview

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Flashcards in Chapter 32-Chemical Formulas And Chemical Equations Deck (9):
1

Give the name and formula of 4 covalent compounds.

Hydrogen chloride-HCl
Water-H2O
Methane-CH4
Carbon Dioxide-CO2

2

Give the name and formula of 4 ionic compounds.

Sodium chloride-NaCl
Manganese dioxide-MnO2
Sodium hydroxide-NaOH
Calcium Chloride-CaCl2

3

What are the types of equations in chemistry?

Word equations and chemical equations.

4

What are reactants?

Reactants are the starting chemicals that are always on the left side of the equation.

5

What are products?

Products are the chemicals produced in a reaction, they are written on the right side of the equation.

6

What is a chemical equation?

It is similar to a word equation except it uses symbols (for elements) and formulas (for compounds) in the equation.

7

What is a balanced equation?

A balanced equation is one in which the total number of atoms of each element on the left-hand side of the equation is equal to the total umber of atoms on the right-hand side of the equation.

8

What is one rule when balancing an equation?

When balancing an equation,number are put in front of formulas, but the formulas themselves must never be changed.

9

What is a chemical formula?

It is used to represent a compound or a molecule of a compound.