Asample of hydrogen gas, has a volume of 8.56 l at a temperature 0oc and pressure of 1.5 atm. calculate the number of moles of hydrogen present in this gas sample ( assume that the gas behave ideally)

What is the polyatamic ion of borate

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound