Elements are - A. atoms chemically bonded. B. atoms in their purest form. C. atoms physically combined.

Matt is touring a nation in which coins are issued in two amounts, 2¢ and 5¢, which are made of iron and copper, respectively.

Why do we use the term "formula unit" rather than "molecule" when we refer to the simplest repeating unit of an ionic solid?

Which is an example of a binary compound? a. acetic compound b. nitric compound c. potassium compound d. potassium oxide

How should the alcohol level be shown on the kelvin thermometer be read at absolute zero

Why is an oxygen molecule more stable than and oxygen atom?

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