PLEASE HELP. Grade 8 FLVS science questions in picture

Which answer lists the fundamental forces in order from strongest to weakest

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ