Whats 2 + 2? correct answers only

Magnesium reacts with hydrochloric acid, hcl, to produce hydrogen gas (hint: a diatomic molecule) and magnesium chloride. write a balanced equation for this reaction.

How is nuclear chemistry relevant to your everyday life?

How many electrons are contained in the p orbital of the methyl radical?

The ksp value for lead (ii chloride is 2.4 * 10?4. what is the molar solubility of lead (ii chloride?

Which of the following is an advantage of the sole proprietorship form of ownership? A. Limited liability B. Split responsibility C. Control over the business D. Unlimited liability

Which of the following processes includes all of the others? Group of answer choices transport of an ion down its electrochemical gradient osmosis passive transport facilitated diffusion

How is the Bohr atomic model different from the plum-pudding model? A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout. B. In Bohr's model, the atom's mass is mostly made up of electrons instead of protons.

What does the cell theory state? A. that cells come from other cells B. that cells come only from animals C. that cells cannot be created or destroyed

For which one of the following molecules is the indicated type of hybridization not appropriate for M the central atom? a. BeCl2 sp2 b. SiH4 sp3 c. BF3 sp2 d. C2H2 sp e. H2O sp3

P4O10 (s) = - 3110 kJ/mol H2O (l) = - 286 kJ/mol H3PO4 (s) = - 1279 kJ/mol Calculate the change in enthalpy for the following process: P4O10 (s) + 6H2O (l) → 4H3PO4 (s)