Uranium has three isotopes, both of which have: A. Same mass number B. same number of neutrons
C. different number of protons D. same number of electrons

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '