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soldi70 [24.7K]
3 years ago
13

30g of Aluminum at 80°c is added to 30g of water at 10°c . Predict

Chemistry
1 answer:
Vikki [24]3 years ago
3 0

Answer:

the explanation of this 20

Explanation:

20 c

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5. A study of the system, 4 NH3(g) + 7 O2(g) 2 N2O4(g) + 6 H2O(g), was carried out. A system was prepared with [NH3] = [O2] = 3.
emmasim [6.3K]

Answer: The value of the equilibrium constant, Kc, for the reaction is 0.013

Explanation:

Initial concentration of NH_3 = 3.60 M

Initial concentration of O_2 = 3.60 M

The given balanced equilibrium reaction is,

            4NH_3(g)+7O_2(g)\rightleftharpoons 2N_2O_4(g)+6H_2O(g)

Initial conc.       3.60 M        3.60 M              0 M        0 M

At eqm. conc.     (3.60-4x) M   (3.60-7x) M   (2x) M      (6x) M

The expression for equilibrium constant for this reaction will be,

K_c=\frac{[N_2O_4]^2\times [H_2O]^6}{[NH_3]^4\times[Cl_2]}

[N_2O_4]=0.60M

2x = 0.60 M

x= 0.30 M

Now put all the given values in this expression, we get :

K_c=\frac{(2\times 0.30)^2\times (6\times 0.30)^6}{(3.60-3\times 0.30)^4\times (3.60-7\times 0.30)^7}

K_c=0.013

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3 years ago
HELP PLEASEEE !!! ILL MARK YOU BRAINLIEST + 15 POINTS
Shtirlitz [24]

False- water has a high specific heat, so it does not change temperature as easily.

3 0
3 years ago
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If anyone can answer all these questions you can get 35 points
torisob [31]

Answer:

6) 225.8 g

7) 1.01 g

8) 21.624 g

Explanation:

6) Molar Mass of Lithium Bromine: 86.845

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3 years ago
What is the difference b/w synthesis reaction and combination reaction​
suter [353]

Direct Combination Reaction : The reaction in which two or more substances combine to form a single substance is called direct combination reaction. Synthesis Reaction: The reaction in which two or more elements combine to form a compound is called direct combination reaction.

HOPED I HELP BRIANEST PLZZ

4 0
3 years ago
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Why is the melting point of a network solid so high? How is this related to what a network solid is?
Alexxandr [17]
I believe that the answer to the question provided above is that molecules in solid are compact and are connected. It requires huge energy to move it, thus requires high temperature.
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