When 1.5g of Element X is burnt completely, 3.2g of oxide X is formed. What is the empirical formula of the metal oxide?
[Relative Atomic Mass: X=31, O=16]
[Relative Atomic Mass: X=31, O=16]
Anonymous Quiz
43%
XO₂
29%
X₂O
14%
X₂O₄
14%
X₄O₂
2Al₂O₃ → 4Al + 3O₂
Calculate the maximum mass of aluminium that can be extracted from 10.2g of aluminium oxide? [Relative atomic mass: O=16, Al=27]
Calculate the maximum mass of aluminium that can be extracted from 10.2g of aluminium oxide? [Relative atomic mass: O=16, Al=27]
Anonymous Quiz
5%
2.70g
58%
5.40g
26%
10.80g
11%
21.60g
The chemical formulae of calcium nitrate and potassium phosphate are Ca(NO₃)₂ and K₃PO₄ respectively.
What is the chemical formula of calcium phosphate?
What is the chemical formula of calcium phosphate?
Anonymous Quiz
8%
Ca(PO₄)₃
24%
Ca(PO₄)₂
4%
Ca₃PO₄
64%
Ca₃(PO₄)₂
What is the formula of the compound formed between elements Q and R?
Anonymous Quiz
10%
Q₃R₂
66%
Q₂R₃
21%
Q₂R
3%
QR₂
66.0g of propane, C₃H₈ has undergoes complete combustion in oxygen
What is the volume of carbon dioxide gas produced at room conditions.?
[Relative atomic mass: H=1, C=12, O=16, Molar volume at room conditions = 24 dm³ mol⁻¹]
What is the volume of carbon dioxide gas produced at room conditions.?
[Relative atomic mass: H=1, C=12, O=16, Molar volume at room conditions = 24 dm³ mol⁻¹]
Anonymous Quiz
10%
33.6 dm³
50%
36.0 dm³
30%
100.8 dm³
10%
108.0 dm³
Diagram shows a structural formula of butyl ethanoate found in an apple
Which of the following is correct for butyl ethanoate?
Which of the following is correct for butyl ethanoate?
Anonymous Quiz
5%
Relative mass = 58, Empirical formula = C₃H₆O
30%
Relative mass = 58, Empirical formula = C₆H₁₂O₂
35%
Relative mass = 116, Empirical formula = C₃H₆O
30%
Relative mass = 116, Empirical formula = C₆H₁₂O₂
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Hallo everyone! My name is Khairul Rafiq 💝
I'm an impasioned tutor that can help you make your academic dreams come true 🔥
📌Interactive & fun session
📌10A+ 1A in SPM 2023
📌Experienced Guru Muda for 7 subjects at school
📌 Will provide recording, modules or exercises
📌Also available for other subjects upon request 😊
Contact me :
019-8518178
Telegram - @rafiqrafiqrafiq
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today I'm sharing questions related to Form 5 Maths: Taxation
today I'm sharing questions related to Form 5 Maths: Taxation