Convert 2.84 × 1025 molecules of h2o2 to moles.

Titania buys a bag of fertilizers at the store.it reads 30-15-10. how much phosphorous is in the fertilizer a. 30% b. 15% c. 10%

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

Explain which group an element with the electron configuration 1s2 2s2 2p6 3s2 3p6 3d1 4s2 belongs to.