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pashok25 [27]
3 years ago
5

I have several questions for Chemistry.

Chemistry
2 answers:
almond37 [142]3 years ago
8 0
Hin djdkd dj did dj jeeneksbs
Bas_tet [7]3 years ago
7 0

Answer: 1. Ions

2. Molar mass

3. Occurs within extremely high temperatures like the sun and stars.

4. Sublimation

Explanation:

You might be interested in
5. an atom that has lost or gained an electron and has become charged
densk [106]

Answer:

It would be compound.

Explanation:

It is this way because if it adds another proton it becomes more positive that nuetral, and if you add an electron it just makes the atom more dense. That is why the answer is compound. Hope this helped :)

5 0
3 years ago
Which one is a true statement about endothermic reactions? a: More heat is given off than is put into the reaction. b :The react
Setler [38]
A because it gets hot
7 0
3 years ago
THE ASTHENOSPHERE IS CONSIDERED TO BE A SOFT SOLID.True or False
asambeis [7]
Your answer is false
8 0
3 years ago
Read 2 more answers
How does carbon-14 differ from the other carbon atoms
just olya [345]

Answer:

Carbon-14 is an isotope of carbon and differs in the number of neutrons in their nucleus.

Explanation:

all isotopes have the same number of protons and electrons, but differ in the number of neutrons. They have identical chemical behaviour but with different atomic masses and physical properties

4 0
3 years ago
A 5.018 gram sample of a certain hydrate of magnesium sulfate, MgSO4•xH2O, is heated until all the water is driven off. The resu
kifflom [539]

The correct answer is MgSO₄.7H₂O.

The hydrate of magnesium sulfate goes through dehydration due to action of heat. This procedure can be represented chemically as follows:

MgSO₄.XH₂O (5.018 g) = MgSO₄ (2.449 g) + XH₂O (2.569 g)

The number of moles of H2O evolved = 2.569 / molecular weight

= 2.569 / 18 = 0.1427

Number of moles of MgSO₄ produced after decomposition,

= 2.449 / molecular weight

= 2.449 / 120.37

= 0.0203

Now dividing both these numbers to obtain the mole ratio, which prevails between MgSO₄ and H₂O

For H2O = 0.1427 / 0.0203 = 7.02 or 7

Therefore, the formula for the hydrate is MgSO₄.7H₂O.


5 0
3 years ago
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