Describe what can happen to the reaction rate of a system that is heated then cooled

1 answer:

7 0

The answer for this question would be when we increase the temperature of a particular object, its molecules get energy in that specific reaction takes place more quickly and if we decrease the temperature the reverse of what will happen to that thing.

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How many protons do calcium have

Vsevolod [243]

A calcium atom has 20 protons!

There you go! I really hope this helped, if there’s anything just let me know! ☻

6 0

2 years ago

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Sodium Chloride is an ionic compound. Its molar mass is 58.44g. One formula unit of NaCl consists of one____, whose chemical sym

saul85 [17]

Answer: One formula unit of NaCl consists of one cation, whose chemical symbol is $Na^+$ and one anion whose chemical symbol is $Cl^-$

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.

The cation is formed by the metal sodium which forms $Na^+$ and the anion is formed by non metal chlorine which forms $Cl^-$ .

For a formula unit of sodium chloride, the charges have to be balanced , thus the valencies of ions are exchanged and the neutral compound result. Thus

$Na^+$ and $Cl^-$ combine to form neutral $NaCl$