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Nonamiya [84]
4 years ago
6

Describe the molecular structure of water, and explain why it is a polar molecule.

Chemistry
2 answers:
weeeeeb [17]4 years ago
7 0
Water is a polar molecule because of its shape
Neporo4naja [7]4 years ago
6 0

Answer:

Each hydrogen atom is bonded to the oxygen atom with a single bond.

The oxygen atom has two lone pairs.

The molecule is bent.

Oxygen is more electronegative than hydrogen.

Each O-H bond is polar.

The molecule is asymmetrical.

The asymmetry and the polar bonds produce an overall molecular dipole.

The oxygen atom has a partial negative charge, and the hydrogen atoms have a partial positive charge.

Explanation:

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sasho [114]

The answers are

The age of the oldest stars

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Explanation:

The Astronomers calculate the age of the universe by looking for oldest stars, and by measuring the rate of expansion of the universe and back to big bang.

The Astronomers used the techniques like the age of oldest stars, how fast the distant galaxies are moving away from us, patterns of background radiation and along with the Big Bang as reference point, they estimate that the universe may be approximately 12 billion years old.

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Answer:

ver explicacion

Explanation:

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Para un átomo de carbono con hibridación sp2, hay dos enlaces dobles y dos enlaces simples unidos al átomo de carbono que tiene una geometría plana trigonal con un ángulo de enlace de 120 grados. Se pueden unir un total de dos átomos al carbono. Se pueden unir un total de dos átomos al carbono. Esto ocurre en alquenos como el eteno.

Un átomo de carbono con hibridación sp tiene un ángulo de enlace de 180 grados y tiene una geometría lineal con un enlace triple y un enlace sencillo. Solo se puede unir un átomo al carbono. Esto ocurre en alquinos como el etino.

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There is no way to know which reaction requires which catalyst. However, if you apply copper to a reaction where it does act as a catalyst, the rate of reaction will be much faster as it lowers the activation energy for successful collisions. 
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3 years ago
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