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inysia [295]
3 years ago
5

Select all the correct answers.

Chemistry
2 answers:
hammer [34]3 years ago
4 0
It would be a mixture
Mrrafil [7]3 years ago
4 0

Answer:

liquid and mixure

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Lithium has one valence electron. Bromine has seven valence electrons.How might they form a covalent bond?
natita [175]
C.) Lithium donates an electron to bromine
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4 years ago
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How much water needs to be added to 100 mL of a 20%w solution of copper (II) sulfate to prepare a 0.01-M solution?
Alisiya [41]

Answer:

12430mL of water must be added

Explanation:

To solve this question we need to convert the 20%w of CuSO₄ to molarity. Then, using the <em>diulution factor </em>we can find the amount of water required:

20g CuSO₄ / 100mL * (1mol / 159.609g CuSO₄) = 0.1253 moles / 100mL = 0.1253mol / 0.1L =

1.25M is the concentration of CuSO₄. To dilute this concentration to 0.01M, the dilution factor must be of:

1.25M / 0.01M = 125 times must be diluted the solution.

As the volume of the concentrated solution is 100mL, the total volume of the solution to have a 0.01M solution must be of:

100mL * 125 times = 12530mL is the final volume of the solution. That means the amount of water added must be of:

12530mL - 100mL =

<h3>12430mL of water must be added</h3>
8 0
3 years ago
The bond angles in SCl2 are expected to be Multiple Choice a little more than 109.5°. 109.5°. 120°. a little less than 109.5°. 1
nalin [4]

Answer:

a little less than 109.5°

Explanation:

SCl2 has four regions of electron density around the central atom of the molecule. This implies that it has a tetrahedral electron domain geometry with an expected bond angle of 109.5° according to valence shell electron pair repulsion theory.

However, there are two lone pair of electrons on the central atom of the molecule which decreases the bond angle a little less than 109.5° owing to repulsion between electron pairs.

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How. does knowing the weather forecast affect people making decisions each day?
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Just an example.. This can affect people because it can cause people to bring umbrellas wear rain coats of it were to rain.
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The atomic mass of hydrogen is one. True False
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It's true :) Hope that helps

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