1. A depression in the ground due to a cave collapse or acidic water dissolution of limestone is called a

A rock has the density of 8g/ml. If the rocks mass is 2g what is the rocks volume?

Student A pushed on the cart with a force of 500 N. Student B pushed on the other side of the cart. The cart did not move. How much force did student B apply? Explain how you know.

A 0.080L solution of Ca (OH) 2 is neutralized by 0.0293L of a 3.58 M H2CrO4 solution. What is the concentration of the Ca (OH) 2 solution?

What is true of enzymes? They only speed up reactions. They speed up or slow down any reaction in a living thing. They act as catalysts, each for one specific reaction. They only slow down reactions

Dew forming on grass is an example of condensation

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)