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3 years ago

6

A 2g sample of crystals dissolve very slowly in 100mL of water while the water is stirred. Which of these would cause the crysta

ls to dissolve faster?

1 answer:

liraira [26]3 years ago

7 0

The stirring breaks it up faster, the amount of water doesn’t effect it, it just gives it space to spread/dissolve - I think.

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Anna35 [415]

The answer is the second choice

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3 years ago

Diano4ka-milaya [45]

Answer:

The purpose of the experiment is to see how water of different temperature and salinity affect the density.

Explanation:

Temperature and salinity directly affect the density of the water. Water of low temperature is more dense than water of high temperature, BUT, (fresh)water with no salt is less dense than (sea)water with more salt, so temperature and salinity change density of water.

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2 years ago

When the ph rises from 10 to 12 , how many more times has the solution become basic?

koban [17]

2 times

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3 years ago

Which is the electron configuration for bromine? 1s22s22p63s23p64s23d104p5 1s22s22p63s23p64s23d104p6 1s22s22p63s23p44s23d104p5 1

Svetach [21]

Answer : The correct option is, $1s^22s^22p^63s^23p^64s^23d^{10}4p^5$

Explanation :

The given element bromine belongs to the group 17 and period 4. The symbol of bromine is, Br.

The atomic number of bromine = 35

The total number of electrons present in bromine element = 35

Electronic configuration : It is defined as the arrangement of electrons around the nucleus of an atom.

Hence, the correct electronic configuration of bromine is,

$1s^22s^22p^63s^23p^64s^23d^{10}4p^5$

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Nonamiya [84]

Electron from hydrogen
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