Classifying reactions and Identifying moleculesClassify the following reactions: Hydrogen peroxide breaks down into hydrogen and oxygen gas. Phosphoric acid reacts with ammonia to form ammonium...

Classifying reactions and Identifying molecules

  1. Classify the following reactions:
  1. Hydrogen peroxide breaks down into hydrogen and oxygen gas.
  2. Phosphoric acid reacts with ammonia to form ammonium phosphate.
  3. Magnesium when placed in zinc chloride solution causes zinc metal to form.
  4. Sulfur reacts with iron to form iron sulphide.
  5. Sodium burns in oxygen to form sodium oxide.

Identify the molecules in the list below.CO2 H2O NaCl Li2CO3 N2 CaO Ar

Asked on by al0987

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jerichorayel | College Teacher | (Level 2) Senior Educator

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To better illustrate the answers, the balanced chemical equation are given.

1. Decomposition reaction; H2O2 -> H2 + O2

2. Combination reaction or synthesis; H3PO3 + NH3 -> (NH4)3PO3

3. Single replacement reaction; Mg (s) + ZnCl2 (aq) -> MgCl2 (aq) + Zn (s)

4. Combination reaction or synthesis; S + Fe -> FeS

5. Single replacement reaction; 2Na + O2 -> 2Na2O

 

CO2 - Carbon dioxide

H2O - water

NaCl - Sodium chloride

Li2CO3 - Lithium carbonate

N2 - Nitrogen gas

CaO - Calcium oxide

Ar - Argon

Sources:

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