What is the limiting reactant when 5.5 mol of Ni(NO3)3 reacts with10.0 grams of NaOH? Ni(NO3)3 + 3Na(OH) -> Ni(OH)3 + 3NaNO3

a) If you wanted to design an experiment such that the limiting reactant from #5 was still the limiting reactant when it reacted with calcium phosphate, what mass of excess reactant could you use/ would you need? (multiple answers may apply)

One of these occurs (depending on the limiting reactant you chose):

6Na(OH) + Ca3(PO4)2 --> 3 Ca(OH)2 + 2Na3PO4

2Ni(NO3)3 + Ca3(PO4)2 --> 2Ni(PO4) + 3Ca(NO3)2

A+b→2c when the reaction begins, the researcher records that the rate of reaction is such that 1 mole of a is consumed per minute. after making changes to the reaction, the researcher notes that 2 moles of a are consumed per minute. what change could the researcher have made to effect this change?

What is driving behind plate tectonics (plate movment)? a) gravity only b) inertia c) convection and gravity d) the sun theres no option for science so i picked chemistry. plz

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.