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3 years ago

Is Sun the biggest planet?

2 answers:

4 0

Sun isn't actually planet but star. Really big ball made of gases. Sun's mass consists of hydrogen (~73%); the rest is mostly helium (~25%). Sun is the biggest object in our Solar System. It's 99.86% of the total mass of the Solar System.

... wikipedia is really grat if you have questions like that ;)

Natasha2012 [34]3 years ago

4 0

The sun is not a planet. If it was, it would be the biggest planet but it's not. Jupiter is the largest planet in our solar system. Jupiter is bigger than all the other planets put together.

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What is the name of the compound that goes with the chemical formula mgcl2

Dimas [21]

Magnesium chloride is the name for the chemical compounds with the formulas MgCl2 and its various hydrates MgCl2(H2O<span>)x. These salts are typical ionic halides, being highly soluble in water. The hydrated magnesium chloride can be extracted from brine or sea water.</span>

7 0

3 years ago

Which two structures would provide a positive identification of a plant cell under a microscope

katovenus [111]

Lysosome, central vacuole

7 0

3 years ago

Read 2 more answers

PLEASE HELP ME OUT!!

vesna_86 [32]

Answer:

hydrogen

Explanation:

7 0

3 years ago

Which ion is the only negative ion produced by an Arrhenius base in water?

Snowcat [4.5K]

According to Arrhenius Theory of acids and bases, an Arrhenius base, when dissolving in water, produces the only negative ion: OH-.

Therefore, (3) OH- is the correct answer.

Hope this is helpful~

6 0

3 years ago

Beryllium oxide, Beo, is an electrical insulator. How

egoroff_w [7]

Answer:

There are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.

Explanation:

We can calculate the number of moles (η) of BeO as follows:

$\eta = \frac{m}{M}$

Where:

m: is the mass = 250 g

M: is the molar mass = 25.0116 g/mol

Hence, the number of moles is:

$\eta = \frac{250 g}{25.0116 g/mol} = 10.0 moles$

Therefore, there are 10.0 moles of beryllium oxide in a 250 grams sample of the compound.

I hope it helps you!

3 0

3 years ago