In order to change grams of a substance to moles of the same substance, or vice versa, the following should be used:

How does temperature affect chemical reaction rates? a. Low temperature starts a reaction. b. High temperature stops a reaction. c. Low temperature causes a faster reaction. d. High temperature causes a faster reaction.

A chemist needs to make an acidic solution that is 0.25 M in acetic acid (HC 2 H 3 O 2). If she plans to prepare 250mL of solution, how much acetic acid must she use to prepare the solution.

Which mineral would most likely be found in a necklace

The Hrxn of formation of carbon dioxide is negative. Which statement is true? The reaction is endothermic. The reaction is exothermic. The amount of carbon dioxide is more than the amount of reactants.

Water (H2O) is composed if the same elements as carbon monoxide (CO). How do their properties compare? A. They have different properties because the arrangement of atoms is different. B. They have the same properties because they have the same atoms.

The energy needed to start a chemical reaction is called

How does the motion of particles in the sun's plasma compare to the motion of particles in a solid? particles in both the plasma and a solid move around to fill available space.

What is the molarity of a solution containing 45.78gMgCl2 dissolved in 3.00L of solution?

What kind of wavelength do television signals have? a. Short c. Long b. Intermediate d. Very rapid

What gene is responsible for tumor suppression? A. beta - galactoside B. p53 C. alpha goblin D. beta goblin