How do you solve this?

How do you solve this?

Equation: Zn + 2HCl = ZnCl2 + H2 Given: .15 mol Zn react

Equation: 2H2O2 = 2H2O + O2 Given: .20 mol H2O2 react

Equation: 2AgNO3 + ZnCl2 = Zn(NO3)2 + AgCl Given: .50 mol AgNO3 react

Equation: 2Al + 3FeO = 3Fe + Al2O3 Given: .30 mol Al react

Equation: MgBr2 + Cl2 = MgCl2 + Br2 Given: .25 mol MgBr2 react

It is claimed that one such system generates 4.00g O3 per hour from dry air passing through the purifier at a flow of 5.00 L/min. If one liter of indoor air contains .280g of O2. The...

E-85 is an alternative fuel for automobiles and light trucks that consists of 85% (by volume) ethanol, and 15% gasoline. The density of ethanol is .79 g/mol.

How many Volkswagons are there in 1 mole of Volkswagons? – Show Work

How many moles would 8.15 x 10^26 atoms of arsenic be? – Show Work

How many moles would 7.84 x 10^25 atoms of magnesium be? – Show Work

How many moles in 34.2 g of sulfur? – Show Work

How many moles in 31.0 g of chlorine? (Remember chlorine is diatomic) – Show Work

How many grams in 45.22 moles of strontium? – Show Work

How many grams in 3.91 moles of sodium? – Show Work

What mass would 4.06 moles of water have? – Show Work

I am needing help answering chemistry homework

5 g of magnesium powder is added into 100 cm3 of 0.5 mol dm-3 nitric acid, HNO3 to produce magnesium nitrate, Mg(NO3)2 salt. Mg + HNO3 → Mg(NO3)2 + H2 a) Calculate the number...

How many L of NaNO3 would I need to add?

If the mole fraction of K2SO3 in an aqueous solution is .0328, what is the weight/weight % (percent by mass) of K2SO3?