What is the pOH of a solution with a [OH-] of 10-11

An element with the atomic number of 13 and mass number of 27 has how many neutrons?

Which of the following organisms is a tertiary consumer

What keeps the particles of a liquid from spreading out to fill an entire container in the same way that gas particles do?

Which of the following can happen during a chemical change? A. atoms change into new types of atoms. B. bonds break, and new bonds form. C. nuclei of atoms break apart and combine D. All of the electrons in the atom are lost

When and where was Siddhartha gautama born? 500bc India 600bc China 150ad Mongolia 800ad tibet

A particular voltaic cell operates with the reaction: Zn (s) + Cl2 (g) - -->Zn^2 + (aq) + 2Cl^ - (aq) giving a cell potential of. 853 V. Calculate the amount of energy liberated from the cell when 20.0g of zinc metal is consumed?

What is the difference between the 3p sublevel and the 4p sublevel? On the periodic table

3. Infer A forgotten ice pop lies melting on a deck on a hot summer day. What is the direction of heat flow as the ice pop melts? Is the process endothermic or exothermic? Explain.

How do ionization energies provide evidence for the quantization of the energies of electrons?

What causes lightning? a) thunder b) an electric discharge c) rising warm air d) air masses meeting