1 mole of nacl has 1 mole of na ions
therefore 2 moles of nacl has 2 moles of na ions
Mole x L
= 2x6.02x10^23
=12.04 x 10^23
We know that Zinc (Zn) has a molar mass of 65.39
g/mol. Hence the remaining is:
136.28 - 65.39=70.89
While molar mass of Chlorine (Cl) is 35.453 g/mol .
70.89 / 35.453 =2 => Cl
<span>So the formula is ZnCl2</span>
Answer :
Option D) 2.50 X
Mol/(L s)
Explanation: While calculating the average reaction rate for the given reaction in terms of Cl;

.
using the rate equation which is;

![\frac{delta [Cl]}{delta t}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bdelta%20%5BCl%5D%7D%7Bdelta%20t%7D%20)
=

=
2.50 X
Mol/(L s)
Answer: The object's heat of fusion is 68.52 Joules/gram.
Explanation:
Mass of the sample = 42 grams
Energy required to melt the sample completely = 2878 Joules



The object's heat of fusion is 68.52 Joules/gram.
Answer:
6
Explanation:
Normally, oxygen has 8 electrons and 8 protons. If the charge is 2-, then that means there are two more protons than electrons. There would be 6 electrons.