Why do nuclear reactions take place

A compound that contains both potassium and oxygen formed when potassium metal was burned in oxygen gas. the mass of the compound was 7.11 grams. The mass of the potassium metal was 3.91 grams.

How can I get the volume of density

What is true of a solution of 2.0 m nacl (aq) It contains 2.0 moles of naci per 1 liter of solution It contains 2.0 grams of naci per 1 liter of solution It contains 2.0 grams of naci per 100grams of water It contains 2.

When elements with four electrons in the outermost shell react chemically, they A. Always gain 4 electrons B. Always lose 4 electrons C. May lose, gain, or share 4 electrons D. May lose or gain 4 electrons

The reaction 2HGOS (S) - 2Hg (1) + 02 (g), you produce 1 mole of HG. What is your percent yield? you expected to produce 2mol of HG. 100% 50% 30% 20%

What is the empirical formula of a compound containing 24.56% potassium, 34.81% manganese, and 40.50% oxygen?

A body was found with no evidence of rigor.

What process makes volcanic mountains?

Why is there no change in the temperature when the process of melting takes place?

Summarize the acid-base behavior of the main-group metal and nonmetal oxides in water. How does oxide acidity in water change down a group and across a period?