Year 10 Chemistry Unit 1
45 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

The term "ore" refers to minerals from which metals are typically extracted.

True (A)

The first step in extracting metals from ores often involves roasting the ore in an oxygen-free environment.

False (B)

Malachite, a copper carbonate, is a type of ore.

True (A)

Roasting an ore like malachite does not involve a chemical reaction.

<p>False (B)</p> Signup and view all the answers

Roasting an ore, such as malachite, typically occurs at very low temperatures.

<p>False (B)</p> Signup and view all the answers

Sodium hydroxide solution is corrosive and requires safety glasses to be worn.

<p>True (A)</p> Signup and view all the answers

The term "thermal decomposition" refers to breaking down a substance by applying heat.

<p>True (A)</p> Signup and view all the answers

Roasting malachite in air is an example of a chemical reaction known as thermal decomposition.

<p>True (A)</p> Signup and view all the answers

The reaction between hydrochloric acid solution and solid sodium hydrogen carbonate would result in a temperature decrease.

<p>False (B)</p> Signup and view all the answers

The experiment uses a polystyrene cup in a beaker surrounded by cotton wool to minimize heat loss to the surroundings.

<p>True (A)</p> Signup and view all the answers

The sample of malachite that you will be given is likely to be a pure compound, not a mixture.

<p>False (B)</p> Signup and view all the answers

Metal oxides react with acids to produce salts and water.

<p>True (A)</p> Signup and view all the answers

The reaction of zinc with copper(II) sulfate solution is an endothermic process.

<p>False (B)</p> Signup and view all the answers

A spatula and weighing boat are used to carefully measure out the exact mass of powdered zinc required for the reaction.

<p>True (A)</p> Signup and view all the answers

The reaction between magnesium oxide and nitric acid produces magnesium nitrate and water.

<p>True (A)</p> Signup and view all the answers

Calcium carbonate reacts with sulfuric acid to produce calcium ethanoate and water.

<p>False (B)</p> Signup and view all the answers

Hydrochloric acid produces salts called sulfates.

<p>False (B)</p> Signup and view all the answers

The reaction between nitric acid and aluminum will produce aluminum sulfate and water.

<p>False (B)</p> Signup and view all the answers

A reaction between an acid and an hydroxide produces water.

<p>True (A)</p> Signup and view all the answers

The reaction between sodium hydroxide and ethanoic acid produces sodium nitrate and water.

<p>False (B)</p> Signup and view all the answers

The reaction between zinc oxide and sulfuric acid produces zinc chloride and water.

<p>False (B)</p> Signup and view all the answers

A glowing splint will relight in the presence of hydrogen gas.

<p>False (B)</p> Signup and view all the answers

To prepare copper chloride, you could react copper carbonate with nitric acid.

<p>False (B)</p> Signup and view all the answers

A chemist would need to have a degree in chemistry to work as a chemical engineer.

<p>False (B)</p> Signup and view all the answers

A forensic chemist would use their knowledge of chemistry to analyze evidence at crime scenes.

<p>True (A)</p> Signup and view all the answers

Neutralisation occurs when an acid reacts with a base, producing a salt and water.

<p>True (A)</p> Signup and view all the answers

The acid used in the experiment to prepare sodium chloride is sulfuric acid.

<p>False (B)</p> Signup and view all the answers

Methyl orange indicator will turn red in a neutral solution.

<p>False (B)</p> Signup and view all the answers

Adding activated charcoal to the solution helps remove any residual acid.

<p>False (B)</p> Signup and view all the answers

Calcium carbonate decomposes to form calcium oxide and carbon dioxide.

<p>True (A)</p> Signup and view all the answers

The decomposition of copper (II) carbonate requires much higher temperatures compared to limestone.

<p>False (B)</p> Signup and view all the answers

The decomposition of limestone is a chemical change.

<p>True (A)</p> Signup and view all the answers

Since there is no color change when limestone is heated, no reaction occurs.

<p>False (B)</p> Signup and view all the answers

To confirm a reaction took place during decomposition of limestone, we can check for the presence of carbon dioxide using limewater

<p>True (A)</p> Signup and view all the answers

The formation of calcium oxide from calcium carbonate is an example of a reduction reaction.

<p>False (B)</p> Signup and view all the answers

Limestone is formed by the compression of micro-shells found in the sea.

<p>True (A)</p> Signup and view all the answers

Neutralization always results in a pH of 7.

<p>False (B)</p> Signup and view all the answers

Limestone is an inorganic sedimentary rock, formed from the remains of tiny shells and micro-skeletons.

<p>False (B)</p> Signup and view all the answers

A renewable resource can be replenished at a faster rate than it is consumed.

<p>True (A)</p> Signup and view all the answers

A non-renewable resource can be used indefinitely.

<p>False (B)</p> Signup and view all the answers

To prove a solution is acidic, you could test its pH with a pH meter.

<p>True (A)</p> Signup and view all the answers

A stronger acid will react more vigorously with a given reactant.

<p>True (A)</p> Signup and view all the answers

A solution with a pH of 9 is strongly acidic.

<p>False (B)</p> Signup and view all the answers

Citric acid is a weak acid.

<p>True (A)</p> Signup and view all the answers

A solution with a pH of 1 is a strong alkali.

<p>False (B)</p> Signup and view all the answers

Flashcards

Oxygen Test

A glowing splint will relight in the presence of oxygen.

Neutralisation Reaction

Occurs when equal amounts of acid and alkali react to form a salt and water.

Sodium Chloride

Common salt formed by neutralising hydrochloric acid with sodium hydroxide.

Copper Chloride Preparation

Making copper chloride by reacting copper carbonate with hydrochloric acid.

Signup and view all the flashcards

Methyl Orange

An acid-base indicator that changes color at different pH levels.

Signup and view all the flashcards

Activated Charcoal

Used to remove impurities from solutions, adsorbing unwanted materials.

Signup and view all the flashcards

Evaporating Basin

Container used to partially evaporate a liquid and obtain crystals.

Signup and view all the flashcards

Filtration

Process of separating solids from liquids using a filter.

Signup and view all the flashcards

Reaction of Acid and Metal Hydroxide

Acid + Metal Hydroxide → Salt + Water

Signup and view all the flashcards

Reaction of Acid and Metal Oxide

Acid + Metal Oxide → Salt + Water

Signup and view all the flashcards

Salt from Sulfuric Acid

Sulfuric acid produces salts called sulfates.

Signup and view all the flashcards

Salt from Hydrochloric Acid

Hydrochloric acid produces salts called chlorides.

Signup and view all the flashcards

Salt from Nitric Acid

Nitric acid produces salts called nitrates.

Signup and view all the flashcards

Salt from Ethanoic Acid

Ethanoic acid produces salts called ethanoates.

Signup and view all the flashcards

Acid and Carbonate Reaction

Acid + Carbonate → Salt + Water + Carbon Dioxide

Signup and view all the flashcards

Acid and Metal Reaction

Acid + Metal → Salt + Hydrogen gas

Signup and view all the flashcards

Decomposition

A type of chemical reaction where a compound breaks down into simpler substances.

Signup and view all the flashcards

Oxidation

A chemical reaction that involves the loss of electrons or an increase in oxidation state.

Signup and view all the flashcards

Reduction

A chemical reaction that involves the gain of electrons or a decrease in oxidation state.

Signup and view all the flashcards

Endothermic

A reaction that absorbs energy from its surroundings, usually in the form of heat.

Signup and view all the flashcards

Exothermic

A reaction that releases energy to its surroundings, often as heat.

Signup and view all the flashcards

Neutralisation

A chemical reaction in which an acid and a base react to form water and a salt.

Signup and view all the flashcards

Renewable

Resources or materials that can be replenished naturally over time.

Signup and view all the flashcards

Non-renewable

Resources that cannot be replaced quickly after use, such as fossil fuels.

Signup and view all the flashcards

Oxidised Substance in Reaction 1

Calcium, which loses electrons and is oxidised.

Signup and view all the flashcards

Reduced Substance in Reaction 1

Copper, which gains electrons from calcium.

Signup and view all the flashcards

Oxidised Substance in Reaction 2

Sodium, which loses electrons to zinc oxide.

Signup and view all the flashcards

Reduced Substance in Reaction 2

Zinc, which gains electrons from sodium.

Signup and view all the flashcards

Limestone

A sedimentary rock made from calcium carbonate.

Signup and view all the flashcards

Thermal Decomposition of Copper(II) Carbonate

Breakdown of copper(II) carbonate into copper oxide and carbon dioxide when heated.

Signup and view all the flashcards

Renewable Resource

A resource that can be replenished naturally over time, e.g., solar energy.

Signup and view all the flashcards

Non-Renewable Resource

A resource that cannot be replenished in a short time, e.g., fossil fuels.

Signup and view all the flashcards

pH Scale

A scale to measure the acidity or alkalinity of a solution from 0 to 14.

Signup and view all the flashcards

Acid Test

A method to identify an acid by observing its properties, e.g., pH indicator.

Signup and view all the flashcards

Sulfuric Acid vs Citric Acid

A practical to compare strengths of these acids using pH measurement.

Signup and view all the flashcards

Weak Acid

An acid that only partially ionizes in solution, e.g., citric acid.

Signup and view all the flashcards

Strong Acid

An acid that fully ionizes in solution, e.g., sulfuric acid.

Signup and view all the flashcards

Endothermic Reaction

A reaction that absorbs heat from the surroundings.

Signup and view all the flashcards

Exothermic Reaction

A reaction that releases heat to the surroundings.

Signup and view all the flashcards

Corrosive Chemicals

Substances that can cause damage to skin and materials.

Signup and view all the flashcards

Safety Equipment

Protective gear used to prevent injury in experiments.

Signup and view all the flashcards

Thermometer Use

An instrument to measure temperature changes in reactions.

Signup and view all the flashcards

Study Notes

Year 10 Chemistry Unit 1

  • Chemistry unit 1 covers chemical reactions
  • The unit includes thinking skills and personal capabilities such as working with others, managing information, self-management, being creative and thinking, problem-solving, decision-making.
  • Students need to understand decomposition, oxidation, reduction, renewable and non-renewable resources, endothermic and exothermic reactions, and apply this knowledge to word equations.
  • Terms to learn include combustion, decomposition, endothermic, exothermic, neutralization, non-renewable, oxidation, reduction, renewable, and thermal.
  • Students should also know the chemical names of hydrochloric acid, limestone, malachite, and sulfuric acid.
  • The unit includes practical investigations such as investigating malachite (copper carbonate) and limestone.
  • Specific experimental techniques are outlined, such as heating a sample of copper carbonate, observing the colour changes, and collecting and testing gases produced using limewater.
  • Students will learn about redox reactions, involving simultaneous oxidation and reduction.
  • Examples of redox reactions using the Reactivity Series are shown.
  • Important concepts and equations for acid reactions with metals, alkalis (or bases), and carbonates are presented.
  • The chemical formulas for acids and alkalis are given, such as HCl (hydrochloric acid), NaOH (sodium hydroxide), H2SO4 (sulfuric acid), KOH (potassium hydroxide), NH3 (ammonia), Na2CO3 (sodium carbonate), and CH3COOH (ethanoic acid).
  • The use of indicators to identify acids and alkalis is discussed.
  • The pH scale and universal indicator are introduced.
  • Students explore the difference between renewable and non-renewable resources.
  • The unit covers an investigation of energy sources and chemical reactions including exothermic and endothermic reactions, with emphasis on energy changes during chemical reactions through bond breaking and bond formation.
  • Students will complete various homework assignments related to chemical formulas, colour changes from experiments, calculating energy changes.
  • There are worked examples of chemical reactions.
  • Finally the unit includes a self-assessment section to evaluate individual learning progress.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Year 10 Chemistry Unit 1 Past Paper 2020/2021 PDF

Description

This quiz covers the fundamental concepts of Year 10 Chemistry Unit 1. Students will explore topics such as chemical reactions, including decomposition and oxidation, and practical techniques for investigating substances like malachite and limestone. Master key terms and concepts critical for understanding endothermic and exothermic processes.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser