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When an acid solution is diluted, the pH of the solution inc…

When an acid solution is diluted, the pH of the solution increases.

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What is ∆EN for the bond between Y-P?

What is ∆EN for the bond between Y-P?

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The halogens are:

The halogens are:

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Which family of elements is the most metallic?    (1 mark) 

Which family of elements is the most metallic?    (1 mark) 

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Select the formula that contains no errors.

Select the formula that contains no errors.

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Italian salad dressing is a:

Italian salad dressing is a:

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The property that best characterises the rare gases is:

The property that best characterises the rare gases is:

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An atom’s first 2 energy levels are filled and there are 2 e…

An atom’s first 2 energy levels are filled and there are 2 electrons in the third energy level. It’s atomic number is:

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An atom of U-238 contains:

An atom of U-238 contains:

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Give the chemical formula for the following compounds:  (2 m…

Give the chemical formula for the following compounds:  (2 marks each) a) magnesium oxide      b) zinc sulphate   c) iron(II) phosphate   d) calcium hydroxide   e) sodium bicarbonate

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