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3 years ago

9

A student drank a bottle of water during a car ride up a mountain. At the top of the mountain, the student capped the plastic bo

ttle. During the drive back down the mountain, what might happen to the bottle

1 answer:

vichka [17]3 years ago

8 0

Answer:

It might cave in on itself or collapse because of the change in pressure.

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Solid added to liquid and the solid floats down to bottom of container physical or chemical change?

Makovka662 [10]

Answer:

Physical change

Explanation:

4 0

3 years ago

1) 8700cm = ______ km

mart [117]

1. 0.087

2. 0.534

3. 1210000

4. 540

5. 0.00234

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3 years ago

one of the tallest dog breeds is the great dane which stands over a meter tall. one of the shortest is the pomeranian which stan

Gemiola [76]

We know that domestic dogs are descended from wolves. Exactly when and how this occurred is still being studied; many experts indicate that dogs were first domesticated about 12,000 years ago, but a few DNA studies indicate a much earlier date for the split between the wolf and the dog, perhaps as long ago as 130,000 years. Regardless of the exact timing of the divergence between wolves and dogs, one thing is true: both species display quite a bit of genetic diversity, particularly in size and coloration.In order to breed a dog of a specific size, all one has to do is choose parents with the appropriate variations. For instance, if you want to create a small dog breed, you would just breed the smallest dogs you have, then you would choose their smallest offspring to breed the next generation, and so on until you have reached the desired size.

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2 years ago

Read 2 more answers

Velocity requires which 2 things?

Nezavi [6.7K]

Its b ()(-(/(:)/(/;:

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2 years ago

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Below is the Lewis structure of the hydrogen cyanide molecule.

lianna [129]

Answer :

The number of bonding pairs of electrons around the hydrogen atom = 2

The number of lone pairs of electrons around the hydrogen atom = 0

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, $HCN$

As we know that carbon has '4' valence electrons, hydrogen has '1' valence electrons and nitrogen has '5' valence electrons.

Therefore, the total number of valence electrons in $HCN$ = 1 + 4 + 5 = 10

According to Lewis-dot structure we conclude that, there are 8 number of bonding electrons and 2 number of non-bonding electrons.

The number of bonding pairs of electrons around the hydrogen atom = 2

The number of lone pairs of electrons around the hydrogen atom = 0

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3 years ago