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rewona [7]
4 years ago
11

Plz answer these questions : ​

Chemistry
1 answer:
SSSSS [86.1K]4 years ago
3 0

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:  2AgCl_{(s)}\xrightarrow{\text{sunlight}}}2Ag_{(s)}+Cl_{2(g)}

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Dude pls help
Anestetic [448]

Answer:

KO is the limiting reactant.

0.11 mol O₂ will be produced.

Explanation:

4 KO₂  +  2 H₂O  ⇒  4 KOH  +  3 O₂

Find the limiting reagent by dividing the moles of the reactant by the coefficient in the equation.

(0.15 mol KO₂)/4 = 0.0375

(0.10 mol H₂O)/2 = 0.05

KO₂ is the limiting reagent.

The amount of product produced depends on the limiting reagent.  To find how much is produced, take moles of limiting reagent and multiply it by the ratio of reagent to product.  You can find the ratio by looking at the equation.  For every 4 moles of KO₂, 3 moles of O₂ are produced.

0.15 mol KO₂  (3 mol O₂)/(4 mol KO₂) = 0.1125 mol O₂

0.11 mol O are produced.

7 0
3 years ago
How hot Will a 2.3L balloon have to get to expand to a volume of 250L?
KIM [24]

it never will, it will pop

5 0
3 years ago
What is the equation for determining gas pressure?
Advocard [28]

Answer:

Explanation:

First, let's review the ideal gas law, PV = nRT. In this equation, 'P' is the pressure in atmospheres, 'V' is the volume in liters, 'n' is the number of particles in moles, 'T' is the temperature in Kelvin and 'R' is the ideal gas constant (0.0821 liter atmospheres per moles Kelvin)

8 0
3 years ago
Read 2 more answers
How are atoms grouped on the periodic table
alex41 [277]
The periodic table<span> organizes the chemical elements according to the number of protons that each has in its atomic nucleus.</span>
3 0
3 years ago
A 2.50 L balloon is filled with water at 2.27 atm. If the balloon is squeezed into a 0.80 L beaker and does NOT burst, what is t
Ludmilka [50]

Answer:

P_2=7.09atm

Explanation:

Hello!

In this case, given the change in volume and pressure of the gas, it is possible for us to recall the Boyle's law as way to understand the inversely proportional relationship between pressure and volume:

P_1V_1=P_2V_2

Thus, when solving for the final pressure, P2, given the initial pressure and volume and the final volume, we obtain:

P_2=\frac{P_1V_1}{V_2}\\\\P_2=\frac{2.27atm*2.50L}{0.80L}\\\\P_2=7.09atm

Best regards!

3 0
3 years ago
Read 2 more answers
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