Which feature do all adult echinoderms have?

The water cycle includes the circulation of all of the water on Earth. Which of these would be included in the water cycle? A. Glaciers B. Oceans C. Surface water D. All of these

Two balloons are at the same temperature and pressure. One contains 14 g of nitrogen and the other contains 20.0 g of argon. Pick the false statement from the following list.

How many moles of copper are in 6,000,000 atoms of copper?

Which statement describes nuclear binding energy? It is the difference between the masses of the protons and neutrons and the mass of the nucleus. It is the energy that is required to bind protons and neutrons together in a nucleus.

Explain how camaflouge is an adaption

Which of the following applies to He gas in the tank when additional oxygen is added at constant temperature? A rigid metal tank contains oxygen gas. A. The volume of the gas increases B. The pressure of the gas decreases C.

Which statement does NOT coincide with kinetic-molecular theory? A.) Gas particles assumed to have an insignificant volume B.) Gases are made up of hard spherical particles C.) All gases particles move in a constant random motion D.

If an atom has 6 electrons outside of its nucleus, which combination of protons and neutrons would result in a neutral atom?

The dihydrogenphosphate ion, H2PO4 - is amphiprotic. In which of the following reactions is this ion serving as a base?

What is the reactant (s) of the reaction below? MgCO3 (s) → MgO (s) + CO2 (g) O A. Magnesium oxide and carbonate O B. Magnesium carbonate O O C. Magnesium and carbon dioxide D. Magnesium oxide