Answer:
The chemical formula of the gas is 
.
Explanation:
The difference between the container with gas and empty container is equal to the mass of the gas.
Let the gas be 
Mass of the gas = m
Molar mass of diatomic gas = M
Pressure of the gas = P = 1.80 atm
Volume of the gas = V = 4.6 L
Temperature of the gas= T = 27.0 C = 27.0 + 273 K = 300 K
Moles of diatomic gas = n = 
Using ideal gas equation:
Atomic mass of the element X = 
The element is nitrogen and the diatomic gas is .
The bonds that hold atoms together to form molecules are called covalent bonds. They are pretty tough and not easily made or broken apart. It takes energy to make the bonds and energy is released when the bonds are broken. Trees take light and use it to make bonds between carbon atoms and molecules of cellulose. I hope this helps:)
Answer:
Density = 8.92 g/cm³
Explanation:
Density shows the relation of the mass and volume of a determined object. We have this deffinition:
Density = mass / volume
First of all, we calcualte the volume of the block of copper metal, with the data given:
8.4 cm . 5.5 cm . 4.6 cm = 212.52 cm³
Now we replace at the density formula:
Density = 1896 g /212.52 cm³ = 8.92 g/cm³
Answer:
Healthy kidneys clean your blood and remove extra fluid in the form of urine. They also make substances that keep your body healthy. Dialysis replaces some of these functions when your kidneys no longer work. There are two different types of dialysis - hemodialysis and peritoneal dialysis. The following is about hemodialysis.
I believe the answer is 3
