Hlp it's due tmrw will give Brainliest We know 0.200 moles of a substance to have a mass of 27.0 g Calculate the molar mass of this substance

135 molar mass

Explanation:

Molar mass = g / moles

= 27.0g / 0.200

= 135 M

convalent bond :

is a chemical bond formed by the sharing of electron between 2 atoms.

it is the direct chemical bond between 2 atoms.

in bond formation atoms are involved here.

electrovalent bond:

is a chemical bond defined as electroststic attraction between 2 atoms.

it is the electrostatic attraction between 2 atoms.

in bond formation, ions are involved here.

hope it

and ur welcm

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electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation: