Hydrogen gas(H2) has a molar mass of 2 g. Molar mass of a substance is defined as the mass of 1 mole of that substance. And by 1 mole it is meant a collection of 6.022*10^23 particles of that substance.
So number of moles of H2 are 0.5 in this case. And thus it means there are (6.022*10^23)*0.5 particles( here they are molecules) in 1g of H2.
Answer:
direct effect
Increasing the pressure increases the boiling point and decreasing the pressure decreases the boiling point
1.An emotional strain and 2. a reaction to a complex emotional state.
Answer: 4 N-2 N=2 Nto the left. Change in motion: The box will move to the left. 7.)
Explanation: Please mark branliest.
Answer:
atom is the smallest unit of matter that has the characteristic properties of a chemical element.