3 years ago

PLEASE ANSWER ASAP.id really appreciate it .Do metalloids have low or high density?

2 answers:

7 0

Metalloids have a high density.

4 0

I'm pretty sure it's low density. I'm sorry if it's wrong.

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ElenaW [278]

Answer:

You may be referring to the gas that makes up 21% of the earth's atmosphere, which is oxygen.

Explanation:

According to NASA, the gases in Earth's atmosphere include:

Nitrogen — 78 percent

Oxygen — 21 percent

Argon — 0.93 percent

Carbon dioxide — 0.04 percent

(Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor)

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3 years ago

Inessa05 [86]

The ionic compounds on dissolving in aqueous solution dissociate into their respective ions that are cations and anions.

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So, the chemical formula of the cation present in the aqueous solution of $CuSO_4$ is $Cu^{2+}$ .

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Answer:

S A T. NV

Explanation:

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