The sun is a mid-sized, main sequence star. What stage is next in the life cycle of the sun?

Select the correct answer. Charlie throws a ball up into the air. While the ball is airborne, which is the greatest force acting on the ball to slow it down? A. applied force B. friction force C. gravitational force D. normal force

Why do nonmetals tend to gain electrons to form negative ions?

35.67 g of NaNO3 is dissolved in water to make a 0.500 M solution. What is the volume of the solution in liters?

What is a caustic substance?

Do you add water to campbell's chicken noodle soup condensed

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)