Ammonia Acid Worksheet With Answers Page 29
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49(e)
Anhydrous copper sulfate is used to test for water.
Use words from the box to complete the sentence.
blue
green
red
white
Water changes the colour of anhydrous copper sulfate from ............................................
to ............................................. .
(2)
(Total 8 marks)
Q23.
Ammonia has the formula NH
3
The diagrams show how electrons are arranged in nitrogen and hydrogen atoms.
(a)
Draw a diagram to show how the electrons are arranged in an ammonia molecule.
You need only show the electrons in the highest energy level.
(2)
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