Chemical Reactions

Bonding and the Periodic Table

Bonding:

What is the formula formagnesium oxide?

What type of bond is it?

What is the formula forsodium chloride?

What type of bond is it?

What is the formula for carbon tetrachloride?

What type of bond is it?

Name two combinations of atoms that will form covalent bonds:

Name two combinations of atoms that will form an ionic bond:

What happens to electrons when atoms bond?

Hey, how you doin’?

What does a chemical equation describe?

18. According to thelaw of conservation of mass,

matter is neither _____ nor _____during chemical reactions.

That is why we balance equations:

a. Write the equationb. Balance the equation

c. List the type of reactiond. Circle the reactants

Fe + O2 --> Fe2O3

PbO2 + Pb + H2OSO4 --> PbSO4 + H2O

AgBr + S2O3 --> AgS2O3 + Br

CO2 + H2O → C6H12O6 + O2 + H2O

If a reaction absorbs heat in order to proceed,

this is called _____.

If a reaction produces heat,

this is called _____.

Exothermic or Endothermic:

Exothermic or Endothermic:

Exothermic or Endothermic:

Exothermic or Endothermic:

Exothermic or Endothermic:

Exothermic or Endothermic:

Exothermic or Endothermic:

Exothermic or Endothermic:

_____ speed up reactions.

_____ slow down reactions.

What type of reaction is this?

2K + MgCl2 → 2KCl + Mg

This?

AB + C→ AC + B

(One substance is trading placeswith another.)

This?

AB → A + B

(One complex substance breakingup into two simpler substances.)

This?

A + B → AB

(Two simpler substances combining toform a complex substance.)

3Mg + N2 → Mg3N2

If 12 g of magnesium react with an unknown amount of nitrogen to form 30 g of magnesium nitride, how many grams of nitrogen were used?

3Mg + N2 → Mg3N2

If 8 g of magnesium react with an unknown amount of nitrogen to form 12 g of magnesium nitride, how many grams of nitrogen were used?

3Mg + N2 → Mg3N2

If 18 g of magnesium react with 12 g of nitrogen to form magnesium nitride, how many grams of were produced?

3Mg + N2 → Mg3N2

If 32 g of magnesium react with 5 g of nitrogen to form magnesium nitride, how many grams of were produced?