djdksj djdksj
  • 26-04-2016
  • Chemistry
contestada

The mass percent of oxygen in CaO is (8 pts)
a) 28.5%

The mass percent of oxygen in CaO is 8 pts a 285 class=

Respuesta :

miss2and22
miss2and22 miss2and22
  • 26-04-2016
what is the rest of the choices but I do think it is a
Answer Link
ghaniraza14 ghaniraza14
  • 26-04-2016
add the reltive atomic mass of Ca and O which are 40 and 16 respectively after addition we get molecular mass of CaO which is 40+16=56 now divide atomic mass of O by molecular mass of CaO and multiply it with 100 as show n 16/56 *100=28.57%
Answer Link

Otras preguntas

f(x)= 3/x+2-square root x-3
1+4=5 2+5=12 3+6=21 8+11=
15% of 6758 for fun. lets see if you can answer this
what is the credit card balance? A-The amount of interest you must pay the credit card company. B-The required minimum payment to your credit card company. C-A
A patient received a new heart transplant, but shows signs of graft rejection after 2 weeks. Which type of hypersensitivity reaction is in progress?" a) Type I
Joe has eaten of a pizza. Jane has eaten of a pizza How many times more pizza has Joe eaten than Jane?
If the unit selling price is 2.50 and the unit cost is 1.00, what action is needed to maintain the gross margin percentage when unit cost increases 0.25?
8 1/4 in simplest form
What's x² + 2x + 1 factorised?
Which verb form correctly completes the sentence? Is the verb singular or plural? The boy with the red shirt and blue jeans __________ been his friend since h