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Reactions of Acids (Refer to pg 5 of Topic 9 notes)
Which of the following reaction is incorrect?
Acids + Metal → Salt + Hydrogen gas
Acids + Metal carbonate → Salt + Carbon dioxide + Water
Acids + Metal oxide → Salt + Carbon dioxide + Water
Acids + Metal hydroxide → Salt + Water
We will go through with the easier 'WORD EQUATION' first >>>
What is the correct word equation from the reaction between Magnesium and Nitric acid?
Magnesium and Nitric acid →
Magnesium nitrate + Hydrogen gas
Magnesium and Nitric acid →
Magnesium sulfate + Hydrogen gas
Magnesium and Nitric acid →
Magnesium nitrate + Carbon dioxide + Hydrogen gas
Magnesium and Nitric acid →
Magnesium sulfate+ Carbon dioxide + Hydrogen gas
We will go through with the easier 'WORD EQUATION' first >>>
What is the correct word equation from the reaction between Sodium carbonate and Sulfuric acid?
Sodium carbonate and Sulfuric acid → Sodium sulfate + Hydrogen gas
Sodium carbonate and Sulfuric acid → Sodium sulfate + Carbon dioxide + Water
Sodium carbonate and Sulfuric acid → Sodium sulfate + water
Sodium carbonate and Sulfuric acid → Sodium sulfate + Hydrogen gas + Water
We will go through with the easier 'WORD EQUATION' first >>>
What is the correct word equation from the reaction between Magnesium oxide and Phosphoric acid?
Magnesium oxide and Phosphoric acid → Magnesium phosphate + Hydrogen gas
Magnesium oxide and Phosphoric acid → Magnesium phosphate + carbon dioxide + water
Magnesium oxide and Phosphoric acid → Magnesium phosphate + water
Magnesium oxide and Phosphoric acid → Magnesium phosphate + hydrogen gas + water
In order to write the chemical formula for the reaction of acids. You would need to know how to identify 1) metal, 2) metal carbonate, 3) metal oxide, and 4) metal hydroxide.
Example of metals are: Mg, K, Na, Pb
Which of the following are metals?
(you may choose more than one answer)
Ag (silver)
Si (silicon)
Cl (chlorine)
Fe (iron)
In order to write the chemical formula for the reaction of acids. You would need to know how to identify 1) metal, 2) metal carbonate, 3) metal oxide, and 4) metal hydroxide.
Example of METAL carbonates are: MgCO3 , K2CO3 , Na2CO3
Which of the following are metal carbonates?
(you may choose more than one answer)
CO2
H2CO3
PbCO3
CuCO3
In order to write the chemical formula for the reaction of acids. You would need to know how to identify 1) metal, 2) metal carbonate, 3) metal oxide, and 4) metal hydroxide.
Example of METAL oxide are: MgO , K2O , Na2O
Example of METAL hydroxide are: Mg(OH)2 , KOH , NaOH
Which of the following are metal oxide and metal hydroxide?
(you may choose more than one answer)
ZnO
Na2CO3
Fe(OH)2
MgPO4
You are now ready to handle 'CHEMICAL EQUATIONS' !!!
(refer to reactions of acids in pg 5 of Topic 9 notes)
Which of the following is a correct chemical equation between Sodium hydroxide and sulfuric acid?
NaOH + H2SO4 → Na2SO4 + H2
NaOH + H2SO4 → Na2SO4 + CO2 + H2O
NaOH + H2SO4 → Na2SO4 + H2 + H2O
NaOH + H2SO4 → Na2SO4 + H2O
If you got it right, congratulations! If not, do try your best again.
Remember to identify which the acid is reacting to. Is it metal? metal carbonate? metal oxide or metal hydroxide?
(refer to reactions of acids in pg 5 of Topic 9 notes)
Which of the following is a correct chemical equation between Zinc and hydrochloric acid?
Zn + HCl → ZnCl2 + H2
Zn + HCl → ZnCl2 + CO2 + H2O
Zn + HCl → ZnCl2 + H2 + H2O
Zn + HCl → ZnCl2 + H2O
Another one! Could be harder.
Remember to identify which the acid is reacting to. Is it metal? metal carbonate? metal oxide or metal hydroxide?
(refer to reactions of acids in pg 5 of Topic 9 notes)
Which of the following is a correct between lead carbonate and phosphoric acid?
PbCO3 + H3PO4 → Pb3(PO4)2 + H2
PbCO3 + H3PO4 → Pb3(PO4)2 + CO2 + H2O
PbCO3 + H3PO4 → Pb3(PO4)2 + H2 + H2O
PbCO3 + H3PO4 → Pb3(PO4)2 + H2O
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