Helllo guys I need help on my home work any help?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?