If 10.0 grams of H2 and 80.0 grams of O2 are reacted, what is the limiting reactant? (Hint: The unbalanced reaction is: H2 + O2 –> H2O) 

What is the correct net ionic equation when aqueous BaCl₂ and Na₂SO₄ are mixed?

If 4.000 g of NaOH are dissolved into water to make 500 mL of solution, what is the molarity of the solution? [molarity_answer] M.

Concentrated hydrochloric acid is 37.0% (w/w) and has a density of 1.19 g/mL. What volume in milliliters of this solution is required to completely neutralize 20.00 g KOH?  Volume of HCl: [vol_hcl] mL. Note: the balanced neutralization reaction is: HCl + KOH –> KCl + H2O

13.2 g of Aluminum chloride is produced in the laboratory when 5.40 g Al is reacted with 12.0 g Cl2. What is the limiting reagent (Al or Cl2)? [limiting_reagent] What is theoretical yield? [theoretical_yield] g AlCl3 What is the percent yield? [percent_yield]%   Note the balanced chemical reaction is: 2Al(s) + 3Cl2(g) –> 2AlCl3(s))

Balance the following equation: [coeff_c3h8]C3H8 + [coeff_o2]O2 → [coeff_co2]CO2 + [coeff_h2o]H2O.   Note: If a coefficient is ‘1’ then don’t leave it blank as would on paper – enter ‘1’.

What volume of 1.2 M H2SO4 is required to react completely w/ 15.0 grams of NaOH? Volume of H2SO4: [vol_h2so4] mL (Hint: the unbalanced equation is: H2SO4  + NaOH –> Na2SO4 + H2O)

The more a person has inspired, the greater the positive relaxation pressure generated.

The nurse is teaching a client prescribed guaifenesin for a productive cough. Which instructions should the nurse include in the teaching? Select all that apply.

When the following equation is balanced, the coefficients are ________.                     NH3 (g) + O2 (g) → NO2 (g) + HO (g)