What has to happen before a star is able to do a chemical reaction?

The atomic mass of an element whose atoms consist of eight protons, nine neutrons, and eight electrons is 8 16 17 25

The reaction is called chain reaction when a. it is one that can be initiated by light b. it involves free radicals that have an unusual stability and thereby cause a large quantum yield c.

A serving fish contains 50 g of protein and 4 gof fat. If protein has a caloric calue of 4.0 kcal/g and fat has 9.1 kcal/g, how many kcal are in the serving?

What is the pH of a 5.41g of HNO3 in 7L of solution? (mass of HNO3=63.02g)

Which is more reactive, Sodium or Magnesium?

What is the best category for nf3? 1. amphoteric ion 2. lewis acid 3. salt 4. bronsted-lowry acid 5. arrhenius acid 6. arrhenius base 7. lewis base 8. weak electrolyte?

100 g = ___hg for science

A real gas behaves more like an ideal gas when the gas molecules are

How many moles are in 12.5 g of H2O

Substance which allows energy to pass through it