Which of these would would be a correct covalent bond pairing?

A-H3O

B-CF2

C-NF

D-CH4

Which of the following reactions is a redox reaction? double-replacement acid-base single-replacement

The empirical formula for this compound that contain 31.14%sulfur and 68.86%chlorine by mass

Select all of the correct statements pertaining to the first and second ionization energies of different elements. check all that apply. the first ionization energy of n is smaller than that of p.

What happens when you put sugar into vinegar

Does percent error measure accuracy or precision? Explain.

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