4Na + O2 - -> 2Na20

If 4 moles of Na react completely, how many moles of Na2O form?

why do atmoic numbers increase from left to right across any given row of the periodic table

Which resistors in the circuit are connected in series to the power source? OA. A and B O B. C and D O O C. A and D O D. B and

At 0oc, what is the state or states of the water in the beaker?

Name two salts used in black and white photography

What is taking place in a reaction as the curve on a reaction pathway graph goes up? Heat is being released. Heat is being absorbed. The reaction has stopped. The reaction is slowing down.

A certain indicator has a color chart that shows that when the indicator is yellow, the solution is acidic. What is true about a solution that produces a yellow indicator?

The element hydrogen adom is made up of wich kinds of adams

What type of igneous rock contains large mineral crystals? Explain why.

Why does it require creativity to devise a new atomic model? The atom cannot be seen directly, so scientist must use creativity to interpret information about its structure. It is impossible to test a theory about the atom.

What will be the the net ionic equations for the following ones: - a) AgNO3 + KCl b) Ni (NO3) 2 + Na2S c) CaCl2 + Na2CO3.