2 Hgo 2 Hg + O2 1. How many grams of mercury (Hg) can be

produced from 3.55 moles of Hgo?

712 moles of Hg are produced

Explanation:

Based on the reaction:

2HgO → 2Hg + O₂

Where 2 moles of HgO reacts producing 2 moles of Hg and 1 mole of O₂

To solve this question we need to find the moles of Hg produced, then, using its molar mass:

Moles Hg:

3.55mol HgO * (2 mol Hg / 2 mol HgO) = 3.55 mol Hg

Grams -Molar mass Hg: 200.59g/mol-:

3.55mol Hg * (200.59g/mol) =

712 moles of Hg are produced

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.