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Los Angeles walloped by winds as cold front moves south ... "Most areas should see a significant warm-up from [Monday] as the cold air ... A winter weather advisory is in effect for northern slopes of the Santa Monica
Explanation:
here ya go
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
nuclear fission produces elements that are heavier than helium.
the elements that are used in nuclear fission and their products are much heavier than helium.
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