Explanation:
1 mole of a gas has 22.4 L of volume at STP. Therefore, 0.5 mol of H2 has 0.5 x 6.022 x 1023 = 3.011 x 1023 molecules. Hence, the number of moles, molecules and atoms present in 11.2 liters of H2 at STP are 0.5 , 3.011 x 1023 and 6.022 x 1023 respectively.
I am actually taking this test right now and I think it is Solid please let me know if I am correct
Explanation:
that was awesome thanks for this lovley question
<span> aluminum is an element. All elements are pure substances, so that means they are homogenous.
please mark as brainliest
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