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Anvisha [2.4K]
3 years ago
14

Which change is chemical?

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

D. water undergoing electrolysis

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A. draw the structure of the tetrahedral intermediate initially formed in the reaction shown. you do not have to consider stereo
julsineya [31]
The reaction is shown below, Acid protonates the carbonyl oxygen and makes the carbonyl carbon more electrophilic. Water attacks on activated carbonyl group and forms a tetrahedral intermediate.

Intermediate:
                    Structure of Intermediate is shown both in 2-D and 3-D (below attached). 

Carbonyl group is regenerated with the elimination of ethanol.

Reaction is as below, The final product is carboxylic acid.

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3 years ago
Why does mantle rock begin to sink back towards the lower mantle from the area closest to the crust?
Delvig [45]

Answer: Convection Currents

Explanation: The mantle rock is solid and denser because it is cooler. This means it will sink closer to lower mantle as warmer, lense dense rock/magma moves upwards.

8 0
3 years ago
Based on the electron configuration of the two atoms, predict the ratio of metal cationic (+) atom to nonmetal anionic (-) atom
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The metal cationic (+) atom to nonmetal anionic (-) atom ratio in the compound formed between Potassium and Chlorine is 1:1.

<h3>What is a compound?</h3>

A compound is made up of two or more atoms that are chemically combined together. In this case, we have the atoms; Potassium and Chlorine.

The electronic configuration of the atoms is not shown here but the metal cationic (+) atom to nonmetal anionic (-) atom ratio in the compound formed between Potassium and Chlorine is 1:1.

Learn more  about chemical compounds:

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6 0
2 years ago
help, Look at the model below. Explain what is correct and/or incorrect about the model based on scale, proportion, and quantity
stiks02 [169]
One correct thging is that there are the same amount of positive and negative atoms
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