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goblinko [34]
3 years ago
9

I neeed helpppppppp please

Chemistry
2 answers:
boyakko [2]3 years ago
4 0

Answer:

basalt

Explanation:

Archy [21]3 years ago
4 0

Answer:

2.BASALT

3.not too sure but its either glassy finish and crystals

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What is mostly made out of rock and metal with no gas or dust?
Jlenok [28]
Pretty sure its asteroids but double check to make sure.... hope this helps!
7 0
3 years ago
The enthalpy of vaporization for water is 40.67 kJ/mol and the enthalpy of fusion for water is
S_A_V [24]

Answer:

\Delta H_{dep}=-46.68kJ/mol

Explanation:

Hello!

In this case, since vaporization is the processes by which a liquid goes to the gas phase, fusion by which a solid goes to liquid and deposition by which a gas goes to solid; we infer that the following set up relates the enthalpies associated to each process:

\Delta H_{fus}+\Delta H_{vap}=-\Delta H_{dep}

Because deposition goes from a state with more energy to a state with less energy, therefore it is negative; in such a way, by plugging in we obtain:

\Delta H_{dep}=-(\Delta H_{fus}+\Delta H_{vap})\\\\\Delta H_{dep}=-(6.01kJ/mol+40.67kJ/mol)\\\\\Delta H_{dep}=-46.68kJ/mol

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6 0
3 years ago
There are two different isotopes of bromine atoms. Under normal conditions, elemental bromine consists of Br2 molecules, and the
Anon25 [30]
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3 years ago
16. Mass = 10g
inessss [21]

Actual volume=Final Volume-initial volume

\\ \sf\longmapsto 50ml-30ml=20ml

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3 0
3 years ago
CH3<br> CH,CCHCHCHCl<br> OH<br> Spell out the full name of the compound.
Degger [83]

Answer:

CH3 – CH – CH – CH2 – CH – CH3

| | |

CH3 CH2 CH3

|

CH3

Explanation:

3 - etil - 2, 5 - dimetilhexano

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