Weight changes with location, but mass does not. True or False?

Right anwser gets marked brainliest newton's discovery concerning how fast an object will change speed is the: 1st law 2nd law 3rd law universal gravitation

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %