Answer:The reaction absorbs 8100 J of energy from the surroundings as it proceeds.
Explanation:
Answer:
I am not 100% sure but I think it is 26.981538
Explanation:
195 g×
1 mol
Ni(OH)
2
92.71
g Ni(OH)
2
×
6.022×
10
23
formula units
mol
=1.27×
10
24
formula units of Ni(OH)
2
Since there are
5
atoms—one
Ni
atom, two atoms of
O
and two atoms of
H
—in each formula unit of
Ni(OH)
2
,
we multiply the number of formula units calculated above by
5
:
1.27×
10
24
formula units of Ni(OH)
2
×
5 atoms
formula unit of Ni(OH)
2
=6.33×
10^
24 total atoms
<u>Answer: </u>The correct answer is 
<u>Explanation:</u>
Exothermic reactions are defined as the reactions in which heat energy is released during a chemical reaction. In these reactions, energy of the products is less than the energy of the reactants.
for these reactions are ought to be negative.
In these chemical reactions, energy term is written on the product side.
From the given chemical reactions, only one reaction satisfies the above information. The chemical reaction is:
