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Group 5A

Kory Hussey

This section includes properties, ammonia, explosives, acid rain and fertilizers

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Across
6.prepared by heating a mixture of 2 things in rhea absence of air
7.Fertilizer is essential for ____ _____
8.a metal
10.type of explosive that is often unstable
11.reacts with ammonia and oxygen, forming nitrogen and water
12.Nitrogen and hydrogen are heated under pressure in the presence of iron
14.The boiling point of ______ is 1750 degrees Celsius
17.a thick, pale, oily liquid
18.leaches nutrients from soil, and makes trees die
19.explosions produce ______ products
20.deprived of phosphate minerals
Down
1.has a pH of about 5.6
2.created by Nobel
3.Nitrogen in air isn't useful for ______
4.The only element in group 5A that isn't at room temperature
5.contain salts of nitrogen, phosphorus, and potassium
9.also used as a refrigerant
13.ammonia is used to manufacture ______
15.power plants are the main source of ____ and nitrogen oxides
16.an explosion requires fuel and ______

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