Max ! a student places a strip of magnesium on an electronic balance and it show the mass of the magnesium to be 101.32 grams. which of these numbers is an estimate?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)

What is the percentage composition of carbon in the compound ch4