2. You're reading a short newspaper article about the unemployment rate in your state. The unemployment rate is the percentage of people in the workforce (people currently employed or actively looking for work) who are classified as unemployed. The article says that the unemployment rate for the state is at an all-time low. However, the article also notes that underemployment is a major problem for the state there are a number of people in the state who are too frustrated to look for work. What inference could you draw from this information?

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

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