Can Someone answer these 2 questions? Phosphoric acid, H3PO4, reacts with sodium hydroxide according to the equation below. If 1.75 mol of H3PO4 are reacted with 5.00 mol NaOH, identify the limiting reactant. H3PO4+3 NaOH→Na3PO4+3H2O

Phosphorus trifluoride is formed from its elements, P4+6 F24 PF3. How many grams of fluorine are needed to react with 6.20 g of P?

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

How have the greenhouse gasses increased from the year 2000 to 2018