Which of the following can lower the activation energy of a system?

A. density

B. catalysts

C. temperature

D. concentration

If the design of jewelry requires 0.490 mole of tin, how many grams of tin are needed?

What condition must be met for a battery to be rechargeable? A. Either its anode or its cathode must generate a gas as a result of the electrochemical reaction. B.

What mass of solute is contained in 25.4 ml of a 1.56 m potassium bromide solution?

A certain half-reaction has a standard reduction potential. an engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least of electrical power. the cell will operate under standard conditions.

How is a cation formed and which elements tend to become these in reactions?

Can dowels be chopsticks, since both of them are wood?

Which electron configuration represents the electrons in an atom of Ga in an excited state?

Why are there so many volcanoes in and around japan

A liquid fuel mixture contains 30.35% hexane (c6h14), 15.85% heptane (c7h16), and the rest octane (c8h18). what maximum mass of carbon dioxide is produced

What is the suns color