Four separate mixtures of a solution and a solid are made, as given in the table. The mixtures are warmed. In which mixtures does gas form?

5070_s13_qp_12

MCQ

2013

Paper 1, Variant 2

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The symbols and represent atoms of different elements. Which diagram shows a mixture of an element and a compound?

5070_w06_qp_1

MCQ

2006

Paper 1, Variant 0

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When two elements react together, a compound is formed. Which statement is correct?

5070_w17_qp_11

MCQ

2017

Paper 1, Variant 1

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Three separate mixtures of a solution and a solid are made, as shown...

5070_w18_qp_11

MCQ

2018

Paper 1, Variant 1

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Three separate mixtures of a solution and a solid are made, as shown...

5070_w18_qp_12

MCQ

2018

Paper 1, Variant 2

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The manufacture of sulfuric acid by the Contact process involves the use of three different raw materials. How many of these raw materials are elements, how many are compounds and how many are mixtures?

5070_w21_qp_11

MCQ

2021

Paper 1, Variant 1

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Which statement about all the noble gases is correct?

5070_s05_qp_1

MCQ

2005

Paper 1, Variant 0

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Which atom has the same electronic configuration as the strontium ion?

5070_s06_qp_1

MCQ

2006

Paper 1, Variant 0

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What is the structure of the ion 38Sr + ?

5070_s07_qp_1

MCQ

2007

Paper 1, Variant 0

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How does a magnesium atom form a bond with an oxygen atom?

5070_s07_qp_1

MCQ

2007

Paper 1, Variant 0

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