An aqueous solution of potassium sulfate is allowed to react with an aqueous solution of calcium nitrate. identify the solid in the balanced equation.

An unknown gas effuses 1.66 times more rapidly than CO2. What is the molar mass of the unknown gas, given that the molar mass of CO2 is 44 grams?

1. in the 1930s windmills were widely used to generate electricity on most farms in the united states which kind of energy resource is used in windmills? A. recyclable energy B. nonrenewable energy C. renewable energy D. potential energy 2.

Name two nineteenth century scientists-one who developed the laboratory burner in common use today, and the other who studied the spectra of colored flames produced by a variety of elements.

On-peak time is the best time to play video games. True or False

I am doing an experiment that calls for 200g of H2SO4. How many moles of H2SO4 is this?

What is the electrical charge of a cation? A. zero B. positive C. negative

You measure the mass of a model car to be 230 grams. The actual mass is 218 grams. what is your percent error

One canned juice drink is 15% orange juice; another is 5% orange juice. How many liters of each should be mixed together in order to get 10L that is 11% orange juice? ... ?

In this reaction, what is the substance oxidized? zn (s) + 2 hcl (aq) → zncl2 (aq) + h2 (g) zinc chloride chlorine hydrogen zn oxygen

Which best compares and contrasts how john newlands and dmitri mendeleev organized elements? both newlands and mendeleev arranged elements according to their chemical properties, but only newlands used atomic mass as well.