¿Cuantos gramos de H3PO4 son necesarios para producir 75g de agua? Ca (OH)2 (s) + H3PO4

Ca3(PO4)2 + H2O

What layer of the atmosphere is directly above the troposphere?

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space