Types of Reactions Worksheet Balance the following equations and indicate the type of reaction taking place: 1) 2 NH3 + 3 I2  N2I6 + 3 H2 Type of reaction: ____________________ 2) 3 Ca(OH)2 + Al2(SO4)3  3 Ca(SO4) + 2 Al(OH)3 Type of reaction: ____________________ 3) P4 + 3 O2 à 2 P2O3 Type of reaction: ____________________ 4) 1 N2 + 3 H2  2 NH3 Type of reaction: ____________________ 5) 2 Pb(SO4)  2 Pb(SO3) + O2 Type of reaction: ____________________ 6) NaBr + H3(PO4)  Na3(PO4) + 3 HBr Type of reaction: ____________________ 7) H2O + SO3  H2(SO4) Type of reaction: ____________________ 8) 3 Mg + Fe2O3  2 Fe + 3 MgO Type of reaction: ____________________ 9) Cu(CO3)  CuO + O2 Type of reaction: ____________________

Theresa, what's the problem you're having with these? The first two look balanced to me.

1) Type of reaction: Combination reaction

2) Type of reaction: Double displacement reaction
3) Type of reaction: Combination reaction
4) Type of reaction: Combination reaction
5) Type of reaction: Decomposition reaction
6) Type of reaction: Double displacement reaction
7) Type of reaction: Combination reaction
8) Type of reaction: Single displacement reaction
9) Type of reaction: Decomposition reaction

To determine the type of reaction taking place in each of the given equations, let's first balance the equations and then identify the type of reaction.

1) 2 NH3 + 3 I2 → N2I6 + 3 H2
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the nitrogen (N) atoms, followed by iodine (I), and finally hydrogen (H) atoms. After balancing, the equation becomes:
2 NH3 + 3 I2 → N2I6 + 6 H2

The type of reaction is a combination reaction, also known as a synthesis reaction. This type of reaction involves the combination of two or more substances to form a single product.

2) 3 Ca(OH)2 + Al2(SO4)3 → 3 Ca(SO4) + 2 Al(OH)3
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the calcium (Ca) atoms, followed by hydroxide (OH) ions, sulfate (SO4) ions, and finally, the aluminum (Al) atoms.
After balancing, the equation becomes:
3 Ca(OH)2 + Al2(SO4)3 → 3 Ca(SO4) + 2 Al(OH)3

The type of reaction is a double displacement reaction, also known as a precipitation reaction. This type of reaction involves an exchange of ions between two compounds, resulting in the formation of a precipitate.

3) P4 + 3 O2 → 2 P2O3
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the phosphorus (P) atoms, followed by oxygen (O) atoms.
After balancing, the equation becomes:
P4 + 5 O2 → 2 P2O3

The type of reaction is a combination reaction, specifically a combustion reaction. This type of reaction involves the rapid combination of a substance with oxygen, usually resulting in the release of heat and light.

4) 1 N2 + 3 H2 → 2 NH3
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the nitrogen (N) atoms, followed by hydrogen (H) atoms.
After balancing, the equation remains the same:
1 N2 + 3 H2 → 2 NH3

The type of reaction is a combination reaction, specifically a synthesis reaction.

5) 2 Pb(SO4) → 2 Pb(SO3) + O2
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the lead (Pb) atoms, followed by sulfate (SO4) and oxygen (O) atoms.
After balancing, the equation becomes:
2 Pb(SO4) → 2 Pb(SO3) + 2 O2

The type of reaction is a decomposition reaction. This type of reaction involves the breakdown of a compound into two or more simpler substances.

6) NaBr + H3(PO4) → Na3(PO4) + 3 HBr
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the sodium (Na) atoms, followed by bromine (Br) atoms, phosphorous (P) atoms, and hydrogen (H) atoms.
After balancing, the equation remains the same:
NaBr + H3(PO4) → Na3(PO4) + 3 HBr

The type of reaction is a double displacement reaction, specifically a neutralization reaction. This type of reaction involves the formation of a salt and water as a result of the reaction between an acid and a base.

7) H2O + SO3 → H2(SO4)
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the hydrogen (H) atoms, followed by oxygen (O) atoms, and finally sulfur (S) atoms.
After balancing, the equation becomes:
H2O + SO3 → H2SO4

The type of reaction is a combination reaction.

8) 3 Mg + Fe2O3 → 2 Fe + 3 MgO
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the magnesium (Mg) atoms, followed by iron (Fe) atoms and oxygen (O) atoms.
After balancing, the equation remains the same:
3 Mg + Fe2O3 → 2 Fe + 3 MgO

The type of reaction is a redox reaction, specifically a single displacement reaction. This type of reaction involves the exchange of ions or atoms between two compounds.

9) Cu(CO3) → CuO + O2
To balance this equation, we need to ensure that the number of atoms of each element is equal on both sides. Start by balancing the copper (Cu) atoms, followed by the carbon (C) atoms, and finally the oxygen (O) atoms.
After balancing, the equation becomes:
Cu(CO3) → CuO + CO2 + 1/2 O2

The type of reaction is a decomposition reaction.