Ammonia gas can be prepared by the following reaction: CaO(s)-2NH4C1(s) → 2NH3(g)--H O(g)-CaCl2(s)
If 324 g of CaO and 648 g of NH4Cl are mixed, the theoretical yield of NH3 is 197 g. If only 138 g of NH3 is actually obtained, what is its percent yield?

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?

Identify arrows pointing to bonding electrons. done h-0-0-h ) intro