Based on the phase change from solid to liquid, predict how the characteristics will vary leading to the phase change that occurs between
liquid and gas. Please help me with this

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

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!