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Dmitriy789 [7]
3 years ago
14

_______ is the current condition in the troposphere. (2 points)

Chemistry
1 answer:
Marysya12 [62]3 years ago
3 0
The current condition in the troposhere is (C) The Atmosphere 
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Identify and explain exothermic and endothermic reactions in terms of energy transfer
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Exothermic reaction is when the system releases energy to the surrounding, the energy (in the perspective of the system) will have a sign of negative, as the system is transferring energy towards the surrounding.

Endothermic reaction is when the system is absorbing energy from the surrounding, the energy (in the perspective of the system) will have a sign of positive, as energy is transferred to the system.
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3 years ago
H2 + Cl2 --> 2HCl
scZoUnD [109]

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Explanation:

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(?) NH4NO3 ---> (?) N2O + (?) H2O
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3 years ago
what is the molarity of a 25 ml sample if it is diluted by adding 50 mol pf water and the molarity changes to 0.186 m?
Iteru [2.4K]

Answer:

0.558 M

Explanation:

Data obtained from the question. This includes the following:

Initial concentration (C1) =..?

Initial volume (V1) = 25mL

Final volume = 25 + 50 = 75mL

Final concentration (C2) = 0.186 M

The initial concentration of the solution can be obtained as follow:

C1V1 = C2V2

C1 x 25 = 0.186 x 75

Divide both side by 25

C1 = (0.186 x 75) /25

C1 = 0.558 M

Therefore, the initial concentration of the stock was 0.558 M

3 0
3 years ago
Lead nitrate (Pb(NO3)2) solution reacts with potassium iodide (KI) solution to form lead iodide (PbI2) precipitate. How would yo
dexar [7]

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Double displacement reaction  

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