Answer: AlCl3
Explanation:
Aluminum is in group 13 and has a valency of 3. Chlorine is in group 17 and has a valency of 1. When a compound is formed, it reflects the valencies of each of the combining elements. This can be simplified by saying that the combining elements exchange their valencies. Cl gets 3 and All gets 1 forming a compound with the formula shown above.
The formula equation that shows a reversible reaction is
NH4Cl (s) ⇔ NH3 (g) + HCl (g) ( answer C)
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<em> </em><u><em> Explanation</em></u>
- Reversible reaction is a chemical reaction where the reactants form products , where in turn react together to form reactant back.
- The reaction of NH4Cl (s)⇔ NH3(g) + HCl (g) is a reversible reaction since NH4Cl decompose to form NH3 and HCl which in turn react together to form NH4Cl back .
Answer:
Allows for a quick "doubling of population because they skip pollination and fertilisation. There is less energy required for asexual reproduction. Large colonies can form that out complete the other organisms for nutrients and water. ... Sexual reproduction leads to genetic variation in new generations of offspring.
Explanation:
Answer:
it gains energy in a quantized amount
Explanation:
when we describe the energy of a particle as a quantized ,we mean that only certain values of energy are allowed....it can only gain the exact amount of energy needed to reach one of the higher energy levels
hope this helps :)
