Answer:
0⁰c , 5 mmHg
Explanation:
Because at this temperature we all know water can be in state of both solid and liquid and when pressure is decreased it can be in form of gas too
I think the correct answer would be the second option. The volume of 1 mol of gas at standard temperature and pressure would be the same for any gas. If and only if the gas is an ideal gas. This is according to the ideal gas law ( PV = nRT ), at STP ( P = 1 atm T = 273.15 K ) you would calculate the volume of the gas to be 22.4 L. So, 1 mol of any ideal gas would occupy 22.4 L of volume. We calculate as follows:
PV = nRT
V = nRT / P
V = (1 mol ) (0.08205 L-atm / mol K) (273.15 K ) / 1 atm
V = 22.4 L <span />
Nickel,Iron,and metal hoped it helped -Krystin
<span>If both samples decompose when heated they cannot be elements, because elements don't decompose. As a matter of fact that is one of the definitions of an element--a substance that cannot be broken down into anything simpler by chemical methods.
Compounds that are the same have the same chemical and physical properties, so if one of the compounds is soluble in water, then both are soluble in water.
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two different compounds.</span>