Theory

Particle arrangement in solids, liquids, and gases

1. A list of symbols and formulae is shown: $\text{Br}_2$, $\text{CH}_4$, $\text{C}_2\text{H}_4$, $\text{Cl}^-$, $\text{CO}_2$, $\text{Cr}^{3+}$, $\te...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

2. (a) A sample of soil is shaken with distilled water. Draw a diagram to show the filtration apparatus used to separate the soil from the solution ob...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

3. This question is about compounds of nitrogen. (a) Complete the dot-and-cross diagram in Fig. 3.1 of a molecule of ammonia. Show outer shell electr...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

4. This question is about metals and compounds of metals. (a) Table 4.1 shows some properties of five metals, A, B, C, D and E. [Table_2] State whic...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

5. Potassium iodide is an ionic compound. (a) State two properties of an ionic compound. [2] (b) Molten potassium iodide is electrolysed using graphi...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

6. (a) Fig. 6.1 shows the displayed formula of a molecule of crotyl alcohol. (i) On Fig. 6.1 draw a circle around the alcohol functional group. [1](ii...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

7. This question is about iron. (a) Iron is extracted from iron ore in a blast furnace. (i) Name the main ore of iron. [1] (ii) The main ore of iron...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

8. A student investigates the reaction of iron powder with dilute hydrochloric acid at 20 °C. The hydrochloric acid is in excess. (a) Fig. 8.1 shows...

2023 Spring

Theory

Particle arrangement in solids, liquids, and gases

1. Fig. 1.1 shows part of the Periodic Table. Answer the following questions using only the elements in Fig. 1.1. Each symbol of the element may be us...

2023 Summer

Theory

Particle arrangement in solids, liquids, and gases

2. (a) Table 2.1 shows some properties of the halogens. [Table_1]Use the information in Table 2.1 to predict:(i) the melting point of bromine [1](ii) ...

2023 Summer

MCQ

Properties of solids, liquids, and gases

Which statement about a solid, a liquid or a gas is correct?

2024 Spring

MCQ

Properties of solids, liquids, and gases

Which diagram represents a mixture of compounds?

2024 Spring

MCQ

Properties of solids, liquids, and gases

Four ions are listed. $$\text{N}^{3-}\quad \text{Al}^{3+}\quad \text{Li}^{+}\quad \text{Cl}^{-}$$ Which pair of ions have the same electronic configur...

2024 Spring

MCQ

Properties of solids, liquids, and gases

Which statement about isotopes is correct?

2024 Spring

MCQ

Properties of solids, liquids, and gases

Which statement about the ions formed by the elements in Group VII of the Periodic Table is correct?

2024 Spring

MCQ

Properties of solids, liquids, and gases

Which row describes the properties of potassium bromide? [Table_1]

2024 Spring

MCQ

Properties of solids, liquids, and gases

Which statement explains why graphite is used as a lubricant?

2024 Spring

MCQ

Properties of solids, liquids, and gases

What is the balanced equation for the reaction between magnesium and dilute sulfuric acid?

2024 Spring

MCQ

Properties of solids, liquids, and gases

The relative atomic mass, $A_r$, of an element is the average mass of the isotopes of that element compared to another particle. Which particle is us...

2024 Spring

MCQ

Properties of solids, liquids, and gases

The equations for two reactions are shown.equation 1\ C + CO_2 \rightarrow x\ COequation 2\ 2C_2H_6 + 7O_2 \rightarrow 4CO_2 + y\ H_2OWhich row shows ...

2024 Spring