Hòa tan hết 19,6 g Fe vào dung dịch HCl thu được muối FeCl 2 và V lit khí H 2 (đkc). Giá trị của V là:

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Agas diffuses 1/7 times faster than hydrogen gas (h2). what is the molar mass of the gas? 100.10 g/mol 98.78 g/mol 86.68 g/mol 79.98 g/mol

While in europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car’s gas mileage is 32.0 mi/gal? assume that 1 euro=1.26 dollars