Coal, oil (petroluem), and natrual gas are used as fuel. The graph shows changes in the per capita consumtion of these three natural recorses since 1820. PLS HELPPP ANSWERS ARE. A. More trees are removed from forests B. more greenhouses gases are released into the air C. more phosphates are released into watershelds. D. More soil is eroded from farm fields

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence

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

answerspecific gravity;