How many balloons, each containing 6.02*10^23 particles of helium gas, can be filled from a tank that contains 1.204 * 10^25 helium particles?

How many moles of carbon in 130g of C2H6

Which is larger 1 inch or 1 centimeter?

1. A 1.020 g sample of sodium fluoride is dissolved in water and then precipitated with calcium nitrate solution. If the calcium fluoride precipitate weighs 0.

Identify each of the following as element, compound, homogenious mixture or heterogenios mixture. a. milk b. iron nail c. glass d. sugar e. bottled spring water f. distilled water g. air h. alloy bicycle frame i. propane j. baking soda

What are some catchy projects titles for the question, "What liquids cause the most tooth decay?"

A solution of a compound with a known extinction coefficient of 23,100 M-1cm-1 has an absorbance of 0.735 in a 1.30cm path length, what is the concentration of the solution

Balance the following equation with the smallest whole number coefficients. Choose the answer that is the sum of the coefficients in the balanced equation. Do not forget coefficients of "one". RbOH + H3PO4 → Rb3PO4 + H2O

What is the temperature of 100 liter container having 1 mole of an ideal gas at a pressure of 20 kilopascals

5.2*10^26 molecules of ch4 in volume

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.