5. Molecular formula gives the number of atoms of each kind of element present in one molecule of a compound. (True/False) ?Give correct answer and got 100 point and brainliest answer​

The rock in a lead ore deposit contains 89 % pbs by mass. how many kilograms of the rock must be processed to obtain 1.5 kg of pb?

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !