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Test: Making compounds - Year 7 MCQ


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10 Questions MCQ Test - Test: Making compounds

Test: Making compounds for Year 7 2024 is part of Year 7 preparation. The Test: Making compounds questions and answers have been prepared according to the Year 7 exam syllabus.The Test: Making compounds MCQs are made for Year 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Making compounds below.
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Test: Making compounds - Question 1
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The number of different elements in calcium carbonate (CaCO3) is _______

Detailed Solution for Test: Making compounds - Question 1

The easy way to do this is to count the capital letters in the formula. Each element has exactly ONE capital letter. In CaCO3, the three elements are Ca, C and O

Test: Making compounds - Question 2
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Which of the following could have been formed by reacting iron with sulfur?

Detailed Solution for Test: Making compounds - Question 2
There are two elements joining together so the name ends in -ide
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Test: Making compounds - Question 3
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The formula of methane is CH4. Which of these is true?

Detailed Solution for Test: Making compounds - Question 3

It contains one atom of carbon joined to four atoms of hydrogen. Can you see how you get that from the formula?

Test: Making compounds - Question 4
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Which of these is NOT a compound?
Detailed Solution for Test: Making compounds - Question 4
Chlorine is an element and therefore appears on the periodic table. The others do not appear on the periodic table so they cannot possibly be elements
Test: Making compounds - Question 5
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Which type of bond is found in molecular compounds?
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In molecular compounds, the atoms bind to each other through covalent bonds.

Test: Making compounds - Question 6
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What type of compound is table salt (NaCl)?
Detailed Solution for Test: Making compounds - Question 6

Table salt (NaCl) is an example of a salt, which is held together with ionic bonds.

Test: Making compounds - Question 7
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What property is typically lost when elements combine to form a compound?
Detailed Solution for Test: Making compounds - Question 7

When elements combine to form a compound, they lose their individual properties and the newly formed compound has new properties.

Test: Making compounds - Question 8
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Which of these word equations is INCORRECT?
Detailed Solution for Test: Making compounds - Question 8
Whoever wrote it forgot to change the name of chlorine to chloride in the compound
Test: Making compounds - Question 9
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Which of the following represents a salt?
Detailed Solution for Test: Making compounds - Question 9

NaCl (table salt) is a salt, which is held together by ionic bonds.

Test: Making compounds - Question 10
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In the compound NaCl, what type of bond holds the sodium and chlorine atoms together?
Detailed Solution for Test: Making compounds - Question 10

In NaCl, the sodium and chlorine atoms are held together by ionic bonds.

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