When 25.00 g of nickel (II) chloride hydrate was heated 11.37 grams of water was released determine the formula of the hydrate

If maltose undergoes hydrolysis what subunits does it results to?

What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 l·atm/mol·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm

Can anyone answer these questions? ? i need it before 1: 00pm today