Answer:
Sure i'll help u! :D
Explanation:
for #1 you do A. I'm not so sure on it tho
For #2 it should be C.
If that didn't help, You can look it up on a website. ok?
Answer:
Explanation:
Hello
In this case, given the reaction:
It means that since the coefficients preceding phosphorous and phosphorous trifluoride are 1 and 4, the correct mole ratio should be:
Because given the mass of phosphorous it is convenient to convert it to moles and then cancel it out with the moles on bottom of the mole ratio.
Bes regards!
Answer: Plaster of paris cast
Explanation:
Calcium sulphate,CaSO4, is a odourless, white powder or a colourless, crystallines solid.It exists in as different hydrates: anhydrous(CaSO4), dihydrate(CaSO4.2H2O) and hemihydrate(CaSO4. 1/2 H2O).
The main use of calcium sulphate,specifically in hospitals,is plaster of paris cast.The powdered form of CaSO4 can be formed into a moldable paste upon hydration.
Answer:
c) the panda eats both plant and animal: fish and bamboo
d)it shows direction of feeding, the one below is fed on by the one above
