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frozen [14]
3 years ago
13

How many atoms in:

Chemistry
1 answer:
Olin [163]3 years ago
4 0

Answer:

I think it might be:

NiO=2

CuO=4

BaO=2

Explanation:

Hope this helps.

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Which of the following element is in the same period as Phosphorus
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Sulphur, Chlorine, Argon, Silicon and Aluminium are all in the same period as Phosphorus.
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What is the equation for the acid dissociation constant, Ka, of HF?
VashaNatasha [74]

Answer:

hydrofluoric acid HF H+ + F- 7.2 × 10-4

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3 years ago
the pressure inside each of two identical cylinders is equal to atmospheric pressure. one cylinder contains hydrogen, the other
ycow [4]

The number of moles of hydrogen is equal to the number of moles of nitrogen.

According to the ideal gas equation

PV = nRT

where

  • P = the pressure of the gas
  • V = the volume of gas
  • n = the total amount of ideal gas (moles)
  • R = the universal gas constant
  • T = the temperature

In the problems there are two identical cylinders means, V₁ = V₂

The pressure inside each of two identical cylinders is equal to atmospheric pressure means, P₁ = P₂

Both gases are at the same temperature, means T₁ = T₂

\frac{P_1 V_1}{P_2 V_2} \:=\: \frac{n_1 RT_1}{n_2 RT_2}

\frac{P_1 V_1}{P_2 V_2} \:=\: \frac{n_1 T_1}{n_2 T_2}

n₁ = n₂

So the total amount of hydrogen gas is equal to total amount of ideal nitrogen gas.

Learn more about the ideal gas equation here: brainly.com/question/27870704

#SPJ4

3 0
1 year ago
Ri
trasher [3.6K]

Answer:

Ammonia is a compound.

Explanation:

A compound is composed of two or more separate elements. Ammonia is NH3, which happens to be two different elements.

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