I've been waiting for like 10 mins. answer this. which of these equations describes photosynthesis? a. 6co2 + c6h12o6 --> 6h2o + 6o2 b. 6co2 + 6h2o --> c6h12o6 + 6o2 c. c6h12o6 + 6o2 --> 6co2 + 6h2o d. 6co2 + 6o2 --> c6h12o6 + 6h2o

The answer is B. 6CO2+H2O yields C6H12O6+ 6H20.

the correct answer is B

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2