S1 Chemistry Homework S1 Chemistry Homework

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Homework 1—States of matter

1. What are the three states of matter?

2. Describe the shape and volume of these three states of matter

3. What states of matter are A, B and C below?

A B C

4. Explain what molecules are

5. Explain what happens when you mix different sized atoms or molecules together, such as alcohol and water.

6. What are the missing words below?

Homework 2—Separating substances

1. What is the one way to mix substances and what are the two ways to separate substances?

2. Describe and draw a labelled diagram to show how you would separate an insoluble solid from a liquid.

3. What words do letters A, B, C, and D stand for?

4. What process is the above diagram showing?

5. Using your knowledge of Chemistry, describe and explain an experiment that could be carried out to separate rock salt into rock and salt.

A

C

B

D

S1 Chemistry Homework S1 Chemistry Homework

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Homework 3—The periodic table

1. What is an element?

2. What name is given to the item where all elements are listed?

3. What does the thick black line below separate?

4. For the elements below the line, describe their general ap-pearance and properties.

5. Give the name, symbol and atomic number for the elements that are blacked above.

Homework 4—Elements and Compounds

1. What is an compound?

2. Copy and complete:

________________________ are substances that are formed when a chem-ical reaction has occurred. They are not ___________ separated; an example would be Copper Oxide/Zinc mixture reacting to give Copper and Zinc Oxide.

_________________ are substances where no chemical has occurred, they are easily ____________ through methods such as evaporation, filtration or using a magnet to separate iron and sulphur.

3. What elements are present in the following compounds:

Calcium Oxide

Potassium Nitrite

Lithium Sulphide

Magnesium Carbonate

Zinc Oxide

Copper Sulphate

4. What four things does a chemical word equation have to have?

S1 Chemistry Homework S1 Chemistry Homework

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Homework 5—Signs of a reaction

1. Give the three signs that a chemical reaction has happened

2. For each of the three signs give an example from an experi-ment

3. What is a reaction that gives out energy called?

4. What is a reaction that takes in energy called?

5. Copy and complete the table below, put a tick in the correct column:

Experiment Chemical reaction Physical change

Boiling water

Baking a cake

Setting off a firework

Melting butter

Dissolving sugar in wa-ter

Burning methane

Condensation

Homework 6—Rates of reaction

1. Name one fast and one slow reaction

2. Which three things can you do to increase the rate of a re-action

3. Using your knowledge of Chemistry explain how you could test to see if concentrated acid or dilute acid made a reac-tion go more quickly

4. Draw a graph from the following sets of results:

Homework 6 continues over the page.

Time (s) Volume gas given off (cm3)

0 0

10 22

20 45

30 75

40 92

50 108

60 118

70 126

80 134

90 140

100 145

S1 Chemistry Homework S1 Chemistry Homework

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Homework 7—Rocks and the carbon cycle

1. How are igneous rocks formed? Give one example of such a rock

2. Give 3 uses of such rocks in everyday life

3. State and explain the trend in the graph below:

Homework 6—Rates of reaction continued

5. Turn the following graph into a table with two headings