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Nutka1998 [239]
3 years ago
11

Does anyone know the answer???​

Chemistry
2 answers:
Dmitrij [34]3 years ago
7 0
And Answer what answer would be 3.14
insens350 [35]3 years ago
6 0
I think the answer is 3.14
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Describe what conditions exist in water molecules to make them dipolar.
lesantik [10]
<span>The bent geometry of the water molecule gives a slight overall negative charge to the oxygen side of the molecule and a slight overall positive charge to the hydrogen side of the molecule. This slight separation of charges gives the entire molecule an electrical polarity, so water molecules are dipolar.</span>
4 0
3 years ago
the half life of a certain element is 100 days. how many half-lives will it be before only one-fourth of this element reamains
Rama09 [41]

Answer:

200 Days

Explanation:

Usually not so good in chemistry, but this is math!

Half life means in this time half goes away.  What happens when two half lives pass?  half of what was remaining goes away.  Maybe an example will make it more clear.

Say we start with 100 grams.  After the amount of time for the half life to pass completes, we have 50, or half of the original amount.  The half life time passes again and THAT gets cut in half to 25 grams.  this is 1/4 of the original (Hey, what we're looking for.)  Just to make it clear what is happening after another half life 1/8 remains, so it goes from The starting amount to 1/2 to 1/4 to 1/8 and so on, it keeps getting cut in half.

So how many times do we have to cut 1 in half until we get to 1/4?  Twice as was shown before.  Now, two half lives for this element is what?  100+100 days.  So 200 Days.

4 0
3 years ago
___ is anything that has mass and volume<br>Pls help
aliina [53]
Matter is anything that has mass and volume
8 0
3 years ago
Read 2 more answers
Necesito ayuda con esto y si es necesario con procedimientos, gracias
BaLLatris [955]

Answer:

sorry but I don't understand Spanish

otherwise I will definitely helps you

7 0
3 years ago
Read 2 more answers
A change in matter that produces one or more new substances is a(n)
lukranit [14]

You could use another word for change can be variable witch means change and if you times the one two more times then you would get four because two time two would be four and times the one would be four.


6 0
4 years ago
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