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Gennadij [26K]
2 years ago
10

What happens in the following cases. [ ( write two eg for each also write is there any ex

Chemistry
1 answer:
scoundrel [369]2 years ago
8 0

mjhhhhhhhhhhmmmmnnñbb

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The reaction A → products is first order. If the initial concentration of A is 0.646 M and, after 72.8 seconds have elapsed, the
mario62 [17]

Answer: 0.00867 moldm-3

Explanation:

Since the reaction is 1st order,

Rate of reaction=∆[A]÷t

0.646-0.0146/72.8= 0.00867

Remember that in a first order reaction, the rate of reaction depends on change in the concentration of only one of the reaction species, A in the problem above.

5 0
3 years ago
Following the Napoleonic Wars , the congress of vienna took steps meant to:
Slav-nsk [51]

Answer:

Prevent any European country from growing much stronger than its neighbors.

Explanation:

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3 years ago
When two atoms form a covalent bond, they share electrons from all of their orbitals. All of their orbitals, in turn, combine to
erma4kov [3.2K]

Answer:

It's false.

Explanation:

Molecular orbital theory states that the number of molecular orbitals is equal to the number of atomic orbitals that overlap. The lowest energy molecular orbital is formed when two atomic orbitals that are in phase overlap, forming a bonding molecular orbital. However, another molecular orbital is also formed, called an anti-binding orbital.

So if an "n" quantity of atomic orbitals is combined, an "n" quantity of molecular orbitals is formed.

Have a nice day!

8 0
3 years ago
What does the red represent on the model? *
kaheart [24]
The red is an oxygen molecule. 1 oxygen and 2 hydrogen =h2o or water!
6 0
3 years ago
How can your knowledge of acids and bases
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Answer:

How can we make use of acids or bases to remove heavy metals from soils? We can remove heavy metals from soil by adding acid and catching the solution that drains through. Acids can react with metals turning metalic compounds which can be dissolved by water and washed away. Improve crop yields?

Explanation:

7 0
3 years ago
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