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enyata [817]
3 years ago
10

4. Calculate the total heat required to convert 23.6 g of ice at -27 ºC to steam at 121 ºC. Hint: Calculation involves more than

1 step.
5.How much heat, in kJ, is needed to convert 12.8 g of ice at -18 ºC to steam at 118 ºC? Hint: Calculation involves more than 1 step.
Chemistry
1 answer:
DanielleElmas [232]3 years ago
8 0

Answer:

filedownload.ashx  heres a pdf

Explanation:

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Now name the molecules: use prefixes!! 1) CO2: 2) N203: 3) SeCl: 4) XeF: 5) S;Brs:
sasho [114]
1) carbon dioxide
2) dinitrogen trioxide
3)Selenium monochloride
4)xenon monofluoride
5) sulfur monobromide
6 0
3 years ago
The first chemical equation was designed by
Maksim231197 [3]

Answer:

Jean Beguin

Explanation:

The first chemical equation was diagrammed by Jean Beguin in 1615.

8 0
3 years ago
4. One of the two products of this reaction is carbonic acid (H2CO3), which immediately forms water and the gas you identified a
Step2247 [10]

Answer:

H₂CO₃ (aq) ⇒ H₂O (l) + CO₂ (g)

Explanation:

Carbonic acid dissociates into water and carbon dioxide which is gas which is used as a fire extinguisher and also which is identified after expose to the flaming and glowing splints. It is a colorless gas which can be identified by brisk effervescence seen in the tube.

<u>The balanced reaction of the decomposition of carbonic acid is:</u>

<u>H₂CO₃ (aq) ⇒ H₂O (l) + CO₂ (g)</u>

4 0
4 years ago
Which statement defines the enthalpy of hydration?
Morgarella [4.7K]

Answer:

B

Explanation:

just took the test

5 0
3 years ago
Helium occupies a volume of 3.8 L at –45°C. What was its initial temperature when it occupied 8.3 L?
USPshnik [31]

Answer:

98.3 gradius Celsius

Explanation:

This problem is solved using the Ideal Gas Equation

pV = nRT

...

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

3 0
4 years ago
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