if it takes 0.5L of oxygen gas is kept in a cylinder under pressure to fill an evacuated 4.0L vessel in which the pressure is 0.98 atm, what was the initial pressure of the gas in the cylinder?

Identify two types of chemical bonding in the source of dietary potassium

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

Adepositional also feature that forms where a stream enters a lake or an ocean is a