What did Dalton conclude about the atom? In other words, what did his Atomic Theory state?

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

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

The ammonia molecule in the diagram has the observed bond orientation because