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1. State the names of the gases present in air and their % by volume

Question 1 of 10

2. What is the formula for sodium oxide?

Question 2 of 10

3. What is an ore?

Question 3 of 10

4. State the general formula for alkenes

Question 4 of 10

5. How many neutrons in a typical atom of carbon?

Question 5 of 10

6. What is meant by the term activation energy?

Question 6 of 10

7. What is the molecular formula for methane?

Question 7 of 10

8. Zinc phosphide, Zn₃P₂ is an ionic compound. The formula of the zinc ion is Zn²⁺. Deduce the formula of the phosphide ion

Question 8 of 10

9. Why do metals have high melting and boiling points?

Question 9 of 10

10. State the formula of the carbonate ion

Question 10 of 10


 

2022-03-09T21:22:06+00:00Categories: Uncategorized|Tags: |
tutorMyself Chemistry is a non-commercial tool to support learning for Edexcel iGCSE Chemistry at one of Britain's top public schools.
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Section 1: Principles of chemistry

      a) States of matter

      b) Atoms

      c) Atomic structure

     d) Relative formula masses and molar volumes of gases

     e) Chemical formulae and chemical equations

     f) Ionic compounds

     g) Covalent substances

     h) Metallic crystals

     i) Electrolysis

 Section 2: Chemistry of the elements

     a) The Periodic Table

     b) Group 1 elements: lithium, sodium and potassium

     c) Group 7 elements: chlorine, bromine and iodine

     d) Oxygen and oxides

     e) Hydrogen and water

     f) Reactivity series

     g) Tests for ions and gases

Section 3: Organic chemistry

     a) Introduction

     b) Alkanes

     c) Alkenes

     d) Ethanol

Section 4: Physical chemistry

     a) Acids, alkalis and salts

     b) Energetics

     c) Rates of reaction

     d) Equilibria

Section 5: Chemistry in industry

     a) Extraction and uses of metals

     b) Crude oil

     c) Synthetic polymers

     d) The industrial manufacture of chemicals

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