A positive two ion of calcium Ca+2, would have how many protons, electrons and neutrons

What structural feature is indicated by the suffix - ene in the name of a hydrocarbon a double bond between carbon atoms a ring of carbon atoms a triple bond between carbon atoms a branched carbon chain

List the 5 levels of organization in living things. Place the smallest level on top.

What evidence led scientists to develop the theory of plate tectonics

Identify the correct sequence of steps in the generation of an action potential. 1. Activation of sodium channels and rapid depolarization 2. Inactivation of sodium channels and activation of potassium channels 3. Depolarization to threshold 4.

If the mass of br-81 is 80.9163 amu, what is the mass of br-79?

Which element has an isotope mass number of 32 and is used as an ecological tracer?

Which laws can be combined to form the ideal gas law? Boyle's law and Charles's law Gay-Lussac's law and Avogadro's law Charles's law, Avogadro's law, and Boyle's law Dalton's law, Gay-Lussac's law, and Avogadro's law

What determines the horizontal arrangement of the periodic table?

A 55.3 g sample of lead heated and then quenched in a 175g sample of water. During the quenching reaction the temperature of the water increases from room temperature, 25.0 °C, to 42.6 °C.

What conclusion can you draw from this experiment about the components of the black ink