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3 years ago

Draw the Lewis structure for the polyatomic hydronium H3O cation. Be sure to include all resonance structures that

Chemistry

1 answer:

antoniya [11.8K]3 years ago

6 0

Answer:

Lewis structure of Hydronium ion is shown below :

Explanation:

Lewis structure : It is a representation of valence electrons on the atoms in a molecule

Here , Hydronium ion is given , which contains 1 atom of oxygen and 3 atoms of hydrogen .

Oxygen has a total of 6 valence electrons and hydrogen contains 1 valence electron .

Oxygen share its 3 valence electrons with 3 hydrogen atoms and left with 3 valence electrons. From these three valence electrons of oxygen atom two electrons will be shown as a pair of electrons on oxygen atom but a single electron can not be shown . So , to simplify this, one positive charge is shown overall .

Resonance structure will be same as the hybrid structure because all three atoms are same , that is hydrogen .

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A student places four identical cells into four different liquids. Over time which cell will look the smallest WXY or Z

marta [7]

Answer: W

Explanation:

The cell in liquid W will look the smallest out of the four because of Osmosis.

Osmosis is a process by which water molecules move from an area of relatively higher concentration of water to an area with a relatively lower concentration through a selectively permeable membrane(cell membrane).

With W being saltier than the cell, water molecules will move from the cell to liquid W to balance the concentrations inside and outside the cell which will lead to the cell in W being smaller.

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3 years ago

Thorium-234 has a half-life of 24.1 days. How much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?

oee [108]

Half-life means that the matter degrades by 50% at each interval. 48.2 days is 2 intervals.

So, it would go down by 50% in the first interval, making it 50g. Then it would go down by another 50% from there, making the final amount of undecayed thorium-234 25g.

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3 years ago

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The concept that all matter is made of tiny particles in constant motion is called?

Svet_ta [14]

Answer:

kinetic theory

Explanation:

The concept that all matter is made of tiny particles in constant motion is called the Kinetic Theory

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3 years ago

A man swims for 30 minutes at a speed of 109m/min how far does he swim

allochka39001 [22]

Answer:

3270m

Explanation:

1 minute= 109m

30 minutes= 109 × 30 = 3270m

(whatever you do on one side you have to do to the other)

hope this helps :)

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3 years ago

I need help for some of the question please,

LenKa [72]

Answer:

Number 6

Explanation:

A reflex action is an involuntary action and nearly instantaneous movement in response to a stimulus.

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3 years ago

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