Which is an example of a mixture made of parts that can easily be separated?
2 answers:
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Answer:- Third choice is correct, 17.6 moles
Solution:- The given balanced equation is:
We are asked to calculate the moles of potassium hydroxide needed to completely react with 2.94 moles of aluminium sulfate.
From the balanced equation, there is 1:6 mol ratio between aluminium sulfate and potassium hydroxide.
It is a simple mole to mole conversion problem. We solve it using dimensional set up as:
= 17.6 mol KOH
So, Third choice is correct, 17.6 moles of potassium hydroxide are required to react with 2.94 moles of aluminium sulfate.
Answer: 2) see below
3) 2AgCl → 2Ag + Cl₂
<u>Explanation:</u>
2)
Step 1: Crushing & Grinding CuFeS₂(s)→ CuFeS₂(s)
Step 2: Froth Flotation CuFeS₂(s)----> CuFeS₂ (l)
Step 3: Roasting 2CuFeS₂(l) + 3O₂(g) → 2FeO(s) + 2CuS(s) + 2SO₂(g)
Step 4: Converting matte to blister Cu₂S(l) + O₂(g) → 2Cu(l) + SO₂(g)
Step 5: Anode Casting Cu(l) → Cu(s)
Step 6: Electrolytic Refining Cu(s) → Cu(s)
Anode: Cu(s) → Cu₂ + (aq) + 2e-
Cathode: Cu2 + (aq) + 2e- → Cu(s)
<em>see diagram below for illustration of steps</em>
3) When silver chloride (solid) is exposed to sunlight, it decomposes into silver (solid) and chlorine (gas).
The equation is written as:
