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Snezhnost [94]
2 years ago
10

Serena mixed two samples together: a gray solid that smells like flowers and a gray solid that smells like bleach. She analyzed

the results and found two ending substances. One of the ending substances was a white solid. This ending substance is made up of the repeating group of atoms shown above. Which of the diagrams to the left shows the repeating groups of atoms that make up the samples Serena mixed together?
Chemistry
1 answer:
babymother [125]2 years ago
4 0

The diagrams that shows the repeating groups of atoms that make up the samples which were mixed together is option D.

A chemical reaction is said to have occurred when there a rearrangement of atoms in a substance. This rearrangement of atoms in the substance leads to the formation of new substances.

In this case, we must note that the combination of reactants to be chosen must posses the atoms shown as part of the one of the end substance. The only option that satisfies this requirement is option D.

Learn more about chemical reaction: brainly.com/question/6876669

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Minchanka [31]

The average molecule of air is moving at speed of 500 m /s and thus

speed of air particle = 500 m /s

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Whereas, the speed of molecule /speed of car = 500 /22 = 22.72

Thus, molecule travel at 22.72 times faster than speed of car.

5 0
3 years ago
elect the best choice, and briefly indicate the reason for your choice: a. Lowest ionization energy: K Rb Cs b. Most favorable e
artcher [175]

Answer:

Lowest ionization energy: Cs

Most favorable electron affinity: Cl

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Explanation:

Ionization energy decreases down the group. That means that as we move down the group, the ionization energy of elements decreases due to greater distance of the outermost electron from the nucleus and greater screening effect of inner electrons on this outermost electron. Hence Cs has the lowest ionization energy.

Electron affinity of halogens decreases down the group. Hence, Cl possess the most favorable electron affinity.

When an electron has been removed from an atom, the removal of the next electron is usually harder. Thus, the second ionization energy is always greater than the first ionization energy and so on. Thus, it is most difficult to remove an electron from Cu^2+ from which two electrons have already been removed.

3 0
3 years ago
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mote1985 [20]
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Answer:

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Explanation:

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