What has 20 electrons in 44 Mass

Which part of experimental design is most important to a scientist when replicating an experiment? (a) having exactly the same data as the previous experiment (b) using the same procedure and variables as the previous experiment (c) conducting and

Which laws can be combined to form the ideal gas law? A. Boyle's law and Charles's law B. Gay-Lussac's law and Avogadro's law C. Charles's law, Avogadro's law, and Boyle's law D. Dalton's law, Gay-Lussac's law, and Avogadro's law

Another metal phosphate is aluminum phosphate. It will behave similar to calcium phosphate in an acid solution. What is the net ionic equation including phases for AlPO4 (s) dissolving in H3O + (aq) ?

Which statement best describes the energy of activation? a. it is affected by a catalyst. b. it is lower if the reaction temperature decreases c. it is higher if the reaction temperature increases d.

Over 100 existing elements are listed and classified on the

What are two ways to make a saturated solution of NH3 in 100. g H20 at 60°C become unsaturated?

What amount of heat energy is needed to raise the temperature of one pound of water by one degree F?

What do all of the flexible objects have in common

If you convert 4.5 grams of water to moles you would have

In an atom of argon-40 the number of protons