<span> Au</span>₂(SeO₄)₃
O = -2 × 4 = -8
Se = + 6
So,
(+6 - 8) = -2
Means (SeO₄) contains -2 charge, Now multiply -2 by 3
-2 ₓ 3 = -6
Means,
Au₂ + (-6) = 0
Au₂ = +6
Or,
Au = 6 / 2
Au = +3
Result:
Au = +3
Se = +6
O = -2
Ni(CN)₂
Cyanide (CN⁻) contains -1 charge,
So,
N = -3
C = +2
Then,
Ni + (-1)₂ = 0
Ni - 2 = 0
Or,
Ni = +2
Result:
N = -3
C = +2
Ni = +2
Answer:
1) Atomic number = number of proton or electrons
Mass number = number of proton or electron + number of neutron
1 3/4 * 4 = 7
Your friend runs 7 miles each day.
Its Esterification reaction. Benzoyl chloride on reaction with alcohols give corresponding ester. In this case the ester formed is as follow,
The answer is <span>B) an explosion
An </span>exothermic reaction is a chemical reaction that is caused by heat and light.
Have a good day! =)
