The percentage composition of this compound : 40%Ca, 12%C and 48%O
<h3>Further explanation</h3>
Given
20.0 g of calcium,
6.0 g of carbon,
and 24.0 g of oxygen.
Required
The percentage composition
Solution
Total mass of compound :
=mass calcium + mass carbon + mass oxygen
=20 g + 6 g + 24 g
=50 g
Percentage composition :



Answer:
The answer to your question is: P = 419933.5 Pa
Explanation:
Data
R = 0.287 KJ/Kg°K = 287 J/Kg°K
mass = 2 kg
T = 35 °C = 308°K
Container = 0.750 meters each side
Volume = l x l x l
= 0.750 x 0.750 x 0.750
= 0.421 m³
P = mRT / V
P = (2)(287)(308) / 0.421
P = 176792 / 0.421
P = 419933.5 Pa
I believe the compound is Phosphorus pentoxide
The answer here is B: Helium.
As many stars, the sun is largely composed of hydrogen and helium. The sun is able to give off radiant energy through the nuclear fusion process. This involves the process by which hydrogen isotopes fuses to create one helium atom and then creates radiant energy that travels to Earth.
Answer:
B.111
Explanation:
Atomic mass = number of protons(or atomic number) + number of neutrons
186 = 75 + number of neutrons
number of neutrons = 186 -75 = 111