Mary roller skates 18 miles in 1 1/2 hours what is her average speed in miles per hour

How does the body maintain the equilibrium between oxygen and hemoglobin at high altitudes?

Be sure to answer all parts. Ammonia is a principal nitrogen fertilizer. It is prepared by the reaction between hydrogen and nitrogen. 3H2 (g) + N2 (g) → 2NH3 (g) In a particular reaction, 4.00 moles of NH3 were produced.

Which biogeochemical cycle is relied upon for plant photosynthesis?

Compare the size of an orbital that has a shared electron pair with one that has a lone pair

If you crashed your car into a house, which kind of insurance would you use: a) Homeowners insurance b) Renters insurance c) Disability insurance d) Auto insurance Submit

Elements have been discovered with up to how many energy levels

How many minutes are in 33.6 days

Select the equations that are correctly balanced. a. H2O + 2O2 → H2O2 b. Fe2O3 + 3H2 → 2Fe + 3H2O c. Al + 3Br2 → AlBr3 d. CaCO3 → CaO + CO2

Identify the reactants and products of 3ba (c2h2o2) 2 (aq) + 2na3po4 (aq) = ba3 (po4) 2 (s) + 6nac2h2o2 (aq)

How many moles of copper are needed to react with sulfur to produce 0.25 moles of copper sulfide