When 3.5 mol Al react with 12.5 mol HCl, what is the limiting reactant and how many moles of H2 can be formed? 2Al + 6HCl yields 2AlCl3 + 3H2

Is lead a mixture or pure substance? and is Paint a mixture or pure substance?

What salt is produced in each of the following neutralization reactions? HNO3 (aq) + KOH (aq) →H2O (l) + ? HNO3 (aq) + Ca (OH) 2 (aq) →H2O (l) + ? HCl (aq) + Ca (OH) 2 (aq) →H2O (l) + ? HCl (aq) + KOH (aq) →H2O (l) + ?

How many oxygen atoms does ozone consist of? A. 1: 1 B. 2: 2 C. 3: 3 D. 4: 4 E. 5: 0

How many seconds elapsed in 2.0 hours

Which is an example of an organism? A. an octopus B. sand granules C. water D. the colors of a feather

P4O10 (s) = - 3110 kJ/mol H2O (l) = - 286 kJ/mol H3PO4 (s) = - 1279 kJ/mol Calculate the change in enthalpy for the following process: P4O10 (s) + 6H2O (l) → 4H3PO4 (s)

Aluminum bromide reacts with chlorine gas to produce aluminum chloride and liquid bromide, according to the chemical equation below: 2A1Br3 + 3Cl2 + 2AlCl3 + 3Br2 How many moles of Aluminum chloride are made if 779 g of chlorine gas are consumed?

When a cell is in late anaphase of mitosis, which of the following will we see?

What is the reactant (s) in the chemical equation below? 2Al (s) + 2NaOH (aq) + 2H2O () 2NaAlO2 (aq) + 3H2 (9) A. 2Al (s) + 2NaOH (aq) + 2H200) B. 2NaAlo2 (aq) + 3H2 (g) C. 2Al (s) D. 3H2 (g)

In an oil spill, why does the oil not mix with the sea water? A. Lipids are hydrophobic B. Lipids are hydrophilic. C. Lipids are saturated. D. Lipids are unsaturated.