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1. How many electrons in the outer shell of group 4 elements?

Question 1 of 10

2. What is an atomic number?

Question 2 of 10

3. Describe the problems caused by acid rain

Question 3 of 10

4. Describe the observations of the reaction of calcium carbonate and dilute hydrochloric acid

Question 4 of 10

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

Question 5 of 10

6. Is barium nitrate soluble?

Question 6 of 10

7. What is the universal indicator colour of a pH 7 (neutral) solution?

Question 7 of 10

8. In the dot and cross diagram of the outer electrons showing the covalent bonding in a molecule of water (H₂O), how many electrons should be shown in areas 1, 2, 3 and 4?

Question 8 of 10

9. State 5 observations when sodium reacts with water

Question 9 of 10

10. With universal indicator, what is the pH of a blue solution?

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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