How many isotopes does carbon have?

5. What is the ratio of the mass to the number of moles of a compound? Responses A. A constant called Avogadro's number that applies to all compounds B. A constant called the molar mass that is specific to the compound C.

Kelly had read that German meteorologist Alfred Wegener further developed a hypothesis about the continents and their positions. What was the most complete hypothesis that Alfred Wegener made? A.

The molar volume of oxygen, O2, is 3.90 dm3 mol-1 at 10.0 bar and 200 degree centigrade. Assuming that the expansion may be truncated after the second term, calculate the second virial coefficient of oxygen at this temperature.

What is the correct order of processes in the accretion of planetesimals?

Which metals have similar chemical property's? Check all that apply. Barium Beryllium Rubidium Radium Titanium Calcium Platinum

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda