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Nat2105 [25]
3 years ago
12

What are the important of proximate analysis​

Chemistry
1 answer:
valentina_108 [34]3 years ago
4 0

Answer:

<h2>Proximate analysis covers the determination of moisture, volatile matter, fixed carbon, and ash in coals and cokes, and is used to establish the rank of coals, to show the ratio of combustible to incombustible constituents, or to provide the basis for buying/selling, and otherwise evaluating coal for various purposes.</h2>

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Predict the products of the following reaction and balance the equation: ___Na2CO3(aq) + ___HCl (aq) -&gt;
zheka24 [161]

Answer:

RxN: Na₂CO₃ (aq) + 2HCl (aq) → 2NaCl (aq) + H₂CO₃ (aq)

NIE: n/a

Explanation:

Step 1: Predict (Double Replacement)

Na₂CO₃ (aq) + HCl (aq) → NaCl (aq) + H₂CO₃ (aq)

Step 2: Balance

Na₂CO₃ (aq) + 2HCl (aq) → 2NaCl (aq) + H₂CO₃ (aq)

Step 3: Write Total Ionic Equation

2Na⁺ (aq) + CO₃²⁻ (aq) + 2H⁺ (aq) + 2Cl⁻ (aq) → 2Na⁺ (aq) + 2Cl⁻ (aq) + 2H⁺ (aq) + CO₃²⁻ (aq)

Step 4: Remove Spectator Ions

- Na⁺

- CO₃²⁻

- H⁺

- Cl⁻

Step 5: Write Net Ionic Equation

None.

3 0
3 years ago
What is the balanced equation of<br> KI + Pb(NO3)2 = KNO3 + PbI2
Shkiper50 [21]
2KI+Pb(NO3)2=2KNO3+PbI2
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The product of 173.06 times 0.21 should be reported as what using proper number of sig figs?
marissa [1.9K]

Answer:

36.3

Explanation:

The full answer would be 36.3426, but because of the 0.21, you round it down to 3 sig figs.

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Name two different signs of a chemical reaction
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A change in temperature or color are two signs that a chemical reaction has taken place.
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a 32823.48joules

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