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lidiya [134]
4 years ago
12

Please help look at the imagewhich one is it

Chemistry
1 answer:
BabaBlast [244]4 years ago
8 0

it is D because im in 8th grade and I know

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Which subatomic particles are found in the nucleus of a lithium atom?
marin [14]

Answer:

Protons, neutrons, electrons..

Explanation:

Protons and neutrons consist of quarks which are stuck together by tiny things called gluons.

Hope this helps! :)

4 0
3 years ago
Suppose a star is undergoing a nuclear reaction. What happens to the elements around the star as it begins to emit more and more
AlladinOne [14]
I think the correct answer would be the third option. As the elements around the star begins to emit more and more electromagnetic radiation, the rocky materials are pulled in by the electromagnetic radiation. They are being drawn closer to the star and there would be a very high chance of a nuclear fusion could happen. The pressure and the temperature in a star is so high that it could allow nuclear fusion to happen. As a matter of fact, most of the life of a start is made from hydrogen nuclei fusing together forming a helium nuclei. As it runs out of the hydrogen nuclei, it would fuse other nuclei forming other elements.<span />
3 0
4 years ago
Read 2 more answers
The following reaction takes place at high temperatures.
monitta

Answer:

Cr_2O_3  (s) + 2Al  (l) ⇒ 2Cr  (l)  + Al_2O_3  (l)

3 0
3 years ago
A solution was prepared by dissolving 2.2 g of an unknown solute in 16.7 g of CCl4. A thermal analysis was performed for this so
laila [671]

Answer:

Molar mass of unknown solute is 679 g/mol

Explanation:

Let us assume that the solute is a non-electrolyte.

For a solution with non-electrolyte solute remains dissolved in it -

Depression in freezing point of solution, \Delta T_{f}=K_{f}.m

where, m is molality of solute in solution and K_{f} is cryogenoscopic constant of solvent.

Here \Delta T_{f}=(-22.9^{0}\textrm{C})-(-28.7^{0}\textrm{C})=5.8^{0}\textrm{C}

If molar mass of unknown solute is M g/mol then-

                 m=\frac{\frac{2.2}{M}}{0.0167}mol/kg

So, 5.8^{0}\textrm{C}=29.9^{0}\textrm{C}/(mol/kg)\times \frac{\frac{2.2g}{M}}{0.0167}mol/kg

so, M = 679 g/mol

4 0
3 years ago
Horizontal<br> rows are called
klio [65]
In math it’s just horizontal in science it’s periods
5 0
4 years ago
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