Answer:
quartz
Explanation:
<em>The correct option would be </em><em>quartz.</em>
<u>Allotropy is a phenomenon that describes the natural existence of the same element in different forms with different physical characteristics. Allotropes are therefore different forms of the same element.</u>
Carbon as an element has several allotropes which include diamond, graphite, graphene, amorphous carbon, and fullerenes. Quartz is a crystalline solid that is composed of silicon dioxide and not carbon.
Hence, all the options are carbon allotropes except quartz.
The coefficient of Fe is 2, Cl is 2, and product would be 2 as well.
Answer is 2.
Answer:
<u><em>=355.5K</em></u>
Explanation:
Specific heat, Q = mcΔT
where
- Q= 4250J
- ΔT= change in temp = final temp - initial temp
- c = specific heat capacity = 1.7
- m = mass of substance in grams
[1 mole of Ne = 20g; 2 moles of Ne = 2 × 20 = 40g]
4250 = 40 × 1.7 × (final - 293K)
final - 293k = 4250 / ( 40 × 1.7)
Final temp = 62.5 + 293
<em>=355.5K</em>
I hope this steps are simple to follow and understand.
<span>Forward & falling. Hope this helps!</span>
