Which of the following elements has the fewest valence electrons?. a. beryllium. b. boron. c. carbon. d. lithium

Reactant P contains 50 J of energy, and reactant Q contains 35.3 J of energy. The reactants combine to form product PQ, which contains 104 J of energy. What is the energy transformation?

Which statement is true about a liquid but not a gas? Question 10 options: It allows particle to move past each other relatively easily. It has more internal energy than the solid state. It will change shape and take the shape of its container.

A 6.53 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with excess hydrochloric acid. The resulting reaction produces 1.73 L of carbon dioxide gas at 26 ∘C and 745 torr pressure.

Which substance is a diatomic molecule

A sample of calcium oxide has mass of 2.80 g. The molar mass of CaO is 58.08 g/mold how many moles of CaO does this sample contain

If 5.0mL of HC2H30 require 4.96mL of 0.9581 M NaOH to just consume the HC2H302, what is the concentration of the HC2H3O2? If necessary, show the calculation on a separate sheet of paper, scan, and submit with your lab report.

How many formula units of CaSO4 are in 17g of CaSO4?

Which of these would be an appropriate way to describe the concentration of orange candies? Check all that apply the number of orange candies divided by total number of candies the mass of orange candies divided by total mass of candies the volume

A 8.00 L tank at 26.9 C is filled with 5.53 g of dinitrogen difluoride gas and 17.3 g of sulfur hexafluoride gas. You can assume both gases behave as ideal gases under these conditions.

What type of wave is sound? a. gamma b. pressure c. electromagnetic d. light