PLEASE HELP If you are attempting to capture exactly 0.54 moles of Hydrogen gas at STP, how many moles are you trying to capture? ​

What is a difference between a mixture of elements and a mixture of compounds

Which statement is true regarding the diagram of circle p? the sum of y and z must be 2x. the sum of y and z must be x. the difference of z and y must be 2x. the difference of z and y must be x

How many grams of sodium chloride are in 250ml of a 2.5m naci solution