A consider the balanced chemical equation 4Cr(6) + 30(9) 2Cr, Os(8)
What mole ratio would you use to calculate how many moles of oxygen gas would be needed to react completely with a given number of moles of chromium
metal?
O 2 mol O,
3 mol Cr
O 3 mol O2
2 mol Cr
04 mol O
3 mol C
O 3 mol O2
4 mol Cr
6 Consider the balanced chemical equation
4Cr(6) +302 (9) ► 2Cr, Os()
What mole ratio would you use to calculate the number of moles of product that would be expected if a given number of moles of chromium metal reacts
completely?
O 3 mol Cr2O3
2 mol C
O 2 mol CrgO;
4 mol Cr
O 4 mol Cr2O3
2 mol Cr
O 2 mol Cryo,
3 mol Cr

Matter- occupies space and possesses rest massno matter is the opposite

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.