The negative particles inside an atom are called?

What 2 molecules make up the sides of dna?

The spectral lines observed for hydrogen arise from transitions from excited states back to the n=2 principle quantum level.

Calculate moles of 7g of magnesium

Which situation would violate the octet rule? 3 bonds to boron 3 bonds to and a lone pair on oxygen 5 bonds to carbon 3 bonds to carbon

If 42.5 g N2 react with 10.1 g H2 according to the reaction below, how many grams of ammonia (NH3) can be produced, and how many grams of the excess reactant will be left over? Unbalanced equation: N2 + H2 → NH3 Be sure to show all of your work.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda