What is hydrogen a mixture, element, or compund?

Explain why the sodium ions and chloride ions are attracted to eachother

What type of reaction is the rusting of iron? (a) single composition (b) simple decomposition (c) single replacement (d) double replacement

Why this chemical equation 3P4 + 10O2 = 4P2O5 + P4 is wrong?

What is a material that cannot be broken down into anything simpler by chemical reaction?

The backbone of nucleic acids consists of a. a glycosidic bond between a purine and a sugar b. a phosphodiester bond between the 2' and 5' hydroxyl groups of neighboring sugars c.

Mass_mole relationship

What is the momentum of an 800-kg car | traveling at a velocity of 10 m/s? What is its momentum if it speeds up to 50 m/s?

How many grams of CuSO4 are there in 100.0 g of hydrate? How many moles?

Which student is determining the atomic mass of sodium?

Ionic compounds can conduct electricity when dissolved in water or melted, because a. the ions are free to move. b. they have no ions to contribute to the solution. c. the ions are fixed in place. d. they have shared electrons.