How many pairs of electrons do the two oxygen atoms in an oxygen molecule share with each

other? Explain your answer.

How do secondary succession differ from the primary succession

What is the mole ratio of NaOH to Al (OH) 3

What happens in a stationary front? A. A warm air mass collides with a stationary cold air mass, and slides under it B. A warm air mass catches up to a moving cold air mass, sliding over it C.

Which of the following is true about carbon dioxide? a.) Carbon and oxygen are chemically bonded in it. b.) Carbon and oxygen retain their original identity in it. c.) It can be separated into carbon and oxygen using physical methods. d.

Write chemical equation to show the reaction between sodium and oxygen gas. calculate the mass of the product formed when 11.5 sodium reacted completely (relative atomic mass, oxygen=16, sodium=23

Using ohm's law, explain how voltage changes in relation to current, assuming that resistance remains constant.

An average copper penny minted in the 1960s contained about 3.000 g of copper. how much chalcopyrite had be mined to produce 100 pennies?

Which pack has the greatest change in enthalpy, warm packs (such as hand warmers) or cold packs (such as an ice pack) ?

A gay cylinder what are the variables in gay-lussacs law

What is the cosmic address of earth in the cosmos?