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galina1969 [7]
3 years ago
12

Predict what the Co, levels will be when you are "old". How many plants/trees need to be planted now to keep carbon dioxide in t

he atmosphere at its current level or lower?
Chemistry
1 answer:
Anna [14]3 years ago
5 0

Answer:

A lot of them.

Explanation:

It would take hundreds of thousands of trees to clear all of the emmisions.

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What is the value of for this aqueous reaction at 298 K? <br> A+B↽⇀C+D<br> ΔG°=12.86 kJ/mol<br> K=
kogti [31]

Answer:

Kc = 0.5951 (4 sig. figs.)

Explanation:

For A + B ⇄ C + D at standard thermodynamic conditions (298K, 1atm)

ΔG = ΔG° + R·T·lnQ => 0 = ΔG° + R·T·lnKc => ΔG° = - R·T·lnKc

=> lnKc = - ΔG°/R·T

ΔG° = +12.86 Kj/mol

R = 8.314 Kj/mol·K

T = 298K

lnKc = - (+12.86Kj) / (8.314Kj/mol·K)(298K) = - 0.519 mol⁻¹

Kc = e⁻⁰°⁵¹⁹ mol⁻¹ = 0.5957 mol⁻¹ (4 sig. figs.)

5 0
3 years ago
Earth is approximately 149,600,000 kilometers away from the sun. How would this distance be expressed in scientific notation?
Ronch [10]

Answer:

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Explanation:

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7 0
3 years ago
Which of the following elements is represented by the orbital diagram?
aalyn [17]
The answer is A I hope it was right
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What are the products when ammonia (NH3) decomposes according to this equation?<br> NH3
In-s [12.5K]
<span>Ammonia (NH3) is the combination of Nitrogen and Hydrogen elements.
=> N2 + 3H2 => 2NH3

Ammonia is basically used as a fertilizer. It is a gas composed of nitrogen and hydrogen. It is colorless with strong odor. Here are some other uses of Ammonia aside from fertilizer:
=> used by manufacturer to produce synthetic fiber
=> Used in metallurgical process
Ammonia can be decomposed easily and it produce hydrogen that is very convenient in welding.
Ammonia’s boiling point is -28.03 F and freezing point is -107.8F.



</span>



7 0
3 years ago
Considering particles at the subatomic level, carrying out this experiment would help to identify the metals given that: Ca has
svet-max [94.6K]

Answer:

we can do it again and again and again and again and again and again

4 0
3 years ago
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