Question

(NH4)2Cr2o7 relative molecular mass

Answer 1

Answer:

CHEMISTRY

A solution is defined as a:

A .

Homogeneous mixture of two or more substances

B .

Heterogeneous mixture of two or more substances

C .

Homogeneous mixture of liquid and solid components only

D .

Homogeneous mixture consisting of water as one of the

A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase. 

A solution consists of a solute and a solvent. 

The solute is the substance that is dissolved in the solvent.

For example, in a saline solution, salt is the solute dissolved in water as the solvent.

Answer 2

Answer:

=2*14 + 8*1 +2*51.9 + 7*16

=28+8+103.8+112

=251.8 amu.

Explanation:

Mass of Nitrogen : 14

Mass of Hydrogen : 1

Mass of Chromium :51.9

Mass of Oxygen : 16

Hope it helps :)