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3 years ago

An element that contains an electron in a d sublevel is A. Mg. B. O. C. Fe. D. Ne.

Chemistry

2 answers:

Dimas [21]3 years ago

8 0

C) Fe

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d⁶

zepelin [54]3 years ago

6 0

Fe iron atomic number 26 i took the test

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Element X consist of two isotopes with masses of 62.9 and 64.9. The relative atomic mass of the element is 63.6. What is th

koban [17]

Answer:

it is 50%

Explanation:

62.9x50=3145

64.9x50=3245

3245+3145=6390

6390/100=63.9

4 0

2 years ago

How would a flood be a limitation for synthetic polymers that rely on natural rubber in its production?

Zepler [3.9K]

A flood, if it hits the environment of the natural rubbers, would destroy how the rubber is being produced. to have a large amount of limitation, the flood would destroy a large percentage of rubber trees. This natural rubber is needed to make synthetic polymers. Without the rubber (because of damages to it's ecosystem through the flood), there would be a limited supply, and a substancial drop on synthetic polymers.

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3 years ago

Read 2 more answers

Silicon reacts with carbon dioxide to form silicon carbide sic and silicon dioxide

andrew-mc [135]

The question is incomplete, here is the complete question:

Silicon reacts with carbon dioxide to form silicon carbide and silicon dioxide. Write the balanced chemical equation.

Answer: The balanced chemical equation is written below.

Explanation:

Every balanced chemical equation follows law of conservation of mass.

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

The balanced chemical equation for the reaction of silicon and carbon dioxide follows:

$2Si+CO_2\rightarrow SiC+SiO_2$

By Stoichiometry of the reaction:

2 moles of silicon reacts with 1 mole of carbon dioxide gas to produce 1 mole of silicon carbide and 1 mole of silicon dioxide

Hence, the balanced chemical equation is written above.

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3 years ago

As the period number increases on the periodic table (moving from the top of the table to the bottom)

harina [27]

As the period number increases on the periodic table, moving from top to bottom, the atomic radius of the elements increases as well.

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3 years ago

Give an example of a substance changing temperature and what happens to the motion of molecules as the temperature changes?

Svetradugi [14.3K]

Answer:

When water freezes, the molecules slow down until the water becomes a solid and the molecules stop moving.

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3 years ago