Which of the following species cannot act as a Lewis base?

NH2-

NH4+

NH3

N3-

NH2-

How to find the atomic mass

Designed to be a measure of the amount of energy released by an earthquake

The chemical formula for barium hydroxide is:. how many hydrogen atoms are in each formula unit of barium hydroxide

Explain why the feeling of weightlessness in free fall is not the same as truly being weightless.

How Difficult or easy to obtain geothermal

A gas has a volume of 30 L at 105 kPa. What pressure is required to compress the gas to 21 L?

Using special equipment which layer of the sun atmosphere is visible during a total solar eclipse

The characteristic flame test colors of metal ions are due to atomic emission spectra. Duscuss the relationship between the absoption and emission of light and the factors responsible for flame test colors.

Should a bartender use ice and scoop directly from ice machine or use an ice holding device and scoop to make drinks and refill drinks from

What classification should this reaction have? 4Al + 3O2 → 2Al2O3