3 Ca(OH)2 + 2 H2PO4 --> 5 Ca3(PO4)2 + 6 H2O 60 g of Ca(OH)2 and 90 g of H2PO4 are put into a reaction, how much H2O is created?

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!