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babunello [35]
3 years ago
9

Question 15 Measurements show that the energy of a mixture of gaseous reactants decreases by during a certain chemical reaction,

which is carried out at a constant pressure. Furthermore, by carefully monitoring the volume change it is determined that of work is done on the mixture during the reaction. Calculate the change in enthalpy of the gas mixture during the reaction. Be sure your answer has the correct number of significant digits. Is the reaction exothermic or endothermic
Chemistry
1 answer:
Tresset [83]3 years ago
3 0

Answer:

20+56+760383848483838393949494994

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Silver is a precious metal. The price of silver fluctuates daily as it is traded on the open market. Look up the current market
Vlad [161]

Answer:

- Current market value of silver produced in the experiment = $0.2763

- Check Explanation for the appearance of leftover copper wire used in the experiment.

Explanation:

Price of Silver on today's market = $15.34 per troy ounce

Amount of Silver produced in the experiment = 0.56 g

31.1 g = 1 troy ounce

0.56 g = (0.56/31.1) = 0.01801 troy ounce

1 troy ounce = $15.34

0.01801 troy ounce = 0.01801 × $15.34 = $0.2763

The original reaction to extract the silver is one between Copper metal and the Silver Nitrate.

The Copper metal dissolves in the Silver Nitrate to give Copper Nitrate thereby displacing the Silver ion to become silver metal which we just valued above. But copper nitrate is a blue solution, So, it is a good estimate to say that the entire solution changed to that blue colour and the appearance of the leftover copper metal is colour blue. The silver metal forms as fractal-like crystals on this leftover copper.

Hope this Helps!!!

4 0
3 years ago
How do I answer this???
Mumz [18]
Will you have to show me what you're talking
8 0
3 years ago
Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?
Fudgin [204]

Answer:

<h2>Which of the following statements correctly describes a difference between mechanical waves and electromagnetic waves?</h2><h2><em>:- Mechanical waves require a medium to travel through, whereas electromagnetic waves can travel through empty space.</em></h2>

<em>is the correct</em>

<em>pls mark me as brainliest pls  </em>

<em></em>

<h3 />
5 0
2 years ago
Read 2 more answers
What is the number of Co2 in a 220 gram
skelet666 [1.2K]
I believe that the number for Co2 in 220 grams is 5
5 0
3 years ago
PLEASE HELP!!!!!!!!!
KonstantinChe [14]

Answer:

Option "C" is the correct answer to the following question.

Explanation:

Given:

Pressure in an automobile tire (P) = 1.88 atm

Temperature (K) = 25°C = 273 + 25 = 298 Kelvin

New temperature (K1) = 37°C = 273 + 37 = 310 Kelvin

Find:

New pressure in an automobile tire (P1) = ?

Computation:

\frac{P}{K}= \frac{P1}{K1} \\\\\frac{1.88}{298}= \frac{P1}{310}\\\\1.9557

New pressure in an automobile tire (P1) = 1.9557

New pressure in an automobile tire (P1) = 1.96 (Approx)

5 0
3 years ago
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