HELP ASAP!!I’ll put brainlist Lot of points

The bonds between the following pairs of elements are covalent. Arrange them
according to polarity, naming the most polar bond first. Draw the arrows properly
(Youcan "draw" arrows like this:+--->).
a. H-N = |
b H-C=
c. H-F
d. H-O
e. H-H

Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?

The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams

Using data from seismic waves, geologists have learned that earth’s interior is made up of several