the rare earth elements (lanthanide group)
Answer:
A
Explanation:
Surface currents are caused by the major wind belts.
Deep currents are formed when surface waters are cooled, become denser and sink below the surface.
The pressure of the gas is obtained as 48 atm.
<h3>What is the total pressure?</h3>
Now we know that;
Number of moles of CH4 = 48.0 grams /16 g/mol = 3 moles
Number of moles of H2 = 56.0 grams/2 g/mol = 28 moles
Total number of moles present = 3 moles + 28 moles = 31 moles
Using;
PV =nRT
P = total pressure
V = total volume
n = total number of moles
R = gas constant
T = temperature
P = nRT/V
P = 31 * 0.082 * 286/15
P = 48 atm
Learn more about pressure of a gas:brainly.com/question/18124975
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2.0 g 1.0g 0.5g 0.25g
3 and a half lives = 42 days
