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Vaselesa [24]
2 years ago
5

A4. Lead oxides are environmental pollutants. (a) Name the source of these pollutants. (b) What is the major adverse effect on h

umans?. (c) State the measures that have been put in place in order to avoid this kind of pollution..... (d) (1) Explain the meaning of the term global warming. (ii) Name a pollutant which causes global warming.​
Chemistry
1 answer:
ira [324]2 years ago
4 0

Answer:

A

Explanation:

bc u have to think about it

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In the reaction between phosphoric acid and ammonia, a compound forms containing 28.2 grams nitrogen, 8.1 grams hydrogen, 20.8 g
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It would be 42.9 grams
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3 years ago
Explain why the nucleus of an atom is positively charged but the overall charge of an atom is neutral
luda_lava [24]

Answer:

sorry

Explanation:

i'm not a chemistry student

but let me try

it is because the neutron of an atom is -

why the proton and electron is +and- (positive and negative)

so + and - = 0

4 0
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When aluminum, Al, metal is dipped in an aqueous solution of hydrochloric acid, HCl, hydrogen gas H_2 is produced with the forma
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