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Nesterboy [21]
3 years ago
12

The closest star to our Sun is Proxima

Chemistry
1 answer:
lana [24]3 years ago
5 0

answer:

not positive if this is correct just what i ould find on google

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What is the term for the process that occurs when k+ and br- ions are pulled into solution?
shtirl [24]
KBr i guess, because the + and - charge is 1 so its like that
4 0
3 years ago
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which of these is an example of a chemical change A breaking glass B mealting ice on a windshield C burning gasoline D denting a
Nonamiya [84]

Lets do process of elimination!

A. Breaking glass - That is a psychical change because if you break it, it is still glass. It didn't change to another substance.

B. Melting ice on a windshield - During the melting process, there is no chemical change, and therefore, no new substance is created.  

C. Burning gasoline - When gas burns it usually combines with oxygen to give carbon dioxide, water etc.  It is a chemical change.

D. Denting a bumper - The bumper is still a bumper, only thing is it has a dent in it. The properties did not change, meaning no chemical change.

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3 years ago
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What is the mass % of acetonitrile in a 2.17 M solution of acetonitrile (MM = 41.05 g/mol) in water? The density of the solution
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why how what what what

5 0
2 years ago
What is the mass in grams of 0.687 moles of NH three
stepan [7]
NH3 = 14 +3*1=17 g/mol
Mass = mol * molar mass = 0.687 * 17= 11.679 g
Can u mark it brainliest?
3 0
3 years ago
Why do some elements form double and triple bonds during bonding
jekas [21]

Explanation:

Elements need a total of eight electrons to gain stability and look like a noble gas. So, they sometimes need sharing of two, four or even six electrons to complete their octate. So, they form double and triple covalent bonds. One more  the reason is the  interaction between the p orbitals of the combining atoms. for example  A double bond, as in ethene H2C=CH2, arises from one combination of the s orbitals and one combination of the p_y orbitals.

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