10.1 Write down the NAME or FORMULA of:
10.1.1 Gas X
10.1.2 Gas Y
10.1.3 Acid Q
10.2 Write down the:
10.2.1 TYPE of chemical reaction that converts compound P into gas Y
10.2.2 Balanced equation for the reaction between compound P and acid Q
10.3 Two separate bags of fertilisers are labelled as follows:
BAG A
1 : 3 : 4 (21)
50 kg
BAG B
1 : 3 : 4 (27)
40 kg
10.3.1 What do the numbers (21) and (27) on the labels represent?
10.3.2 Determine, by means of calculations, which bag (A or B) contains a greater mass of phosphorous. - NSC Physical Sciences - Question 10 - 2019 - Paper 2
Question 10
10.1 Write down the NAME or FORMULA of:
10.1.1 Gas X
10.1.2 Gas Y
10.1.3 Acid Q
10.2 Write down the:
10.2.1 TYPE of chemical reaction that converts compound P into ... show full transcript
Worked Solution & Example Answer:10.1 Write down the NAME or FORMULA of:
10.1.1 Gas X
10.1.2 Gas Y
10.1.3 Acid Q
10.2 Write down the:
10.2.1 TYPE of chemical reaction that converts compound P into gas Y
10.2.2 Balanced equation for the reaction between compound P and acid Q
10.3 Two separate bags of fertilisers are labelled as follows:
BAG A
1 : 3 : 4 (21)
50 kg
BAG B
1 : 3 : 4 (27)
40 kg
10.3.1 What do the numbers (21) and (27) on the labels represent?
10.3.2 Determine, by means of calculations, which bag (A or B) contains a greater mass of phosphorous. - NSC Physical Sciences - Question 10 - 2019 - Paper 2
Step 1
10.1.1 Gas X
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Answer
The formula for Gas X is Hydrogen, represented as H₂.
Step 2
10.1.2 Gas Y
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Answer
Gas Y is Nitrogen monoxide, which has the formula NO.
Step 3
10.1.3 Acid Q
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Answer
Acid Q is Nitric acid, represented by the formula HNO₃.
Step 4
10.2.1 TYPE of chemical reaction that converts compound P into gas Y
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Answer
The reaction converting compound P to gas Y is a catalytic oxidation reaction.
Step 5
10.2.2 Balanced equation for the reaction between compound P and acid Q
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Answer
The balanced equation is:
NH3+HNO3→NH4NO3
Step 6
10.3.1 What do the numbers (21) and (27) on the labels represent?
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Answer
The numbers (21) and (27) represent the percentage composition of nutrients in each bag of fertiliser.
Step 7
10.3.2 Determine, by means of calculations, which bag (A or B) contains a greater mass of phosphorous.
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Answer
To determine the mass of phosphorous in each bag, we use the ratios given.
