QUESTION 1 Please help!! Competition between two organisms for resources is a limiting factor because...
A. There is only a limited amount of food and living
space available in any ecosystem.

B. Predator-prey populations often increase and decrease in cycles.

C. Abiotic factors such as light, water, and temperature are present.

D. Cities, highways, campgrounds, and orchards provide alternate environments for
animals and plants.

the answer is 303.15 or 303

yes

ya te ayud espera

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