Mass of Mercury(Hg) : 55.8 g
<h3>Further explanation</h3>
Given
Reaction
2HgO ⇒ O₂ + 2Hg
Required
Mass of Mercury
Solution
Conservation of mass applies to a closed system, where the masses before and after the reaction are the same
So mass of reactants = mass of products
Mass of reactants = mass HgO = 60 g
Mass of products = mass O₂ + mass Hg
60 g = 4.2 g + mass Hg
mass Hg = 60 - 4.2
mass Hg = 55.8 g
Answer:
D) she is confident and has already made plans
Answer:The change in concentration of a reactant or product per unit time
Explanation:
