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Andre45 [30]
3 years ago
5

Select the correct answer.

Chemistry
2 answers:
Delicious77 [7]3 years ago
8 0

Answer:

it is C

Explanation:

i did some research on it

hope this helps :) also if you can pls mark me as brainliest

ryzh [129]3 years ago
5 0

Answer:

Electrons

Hope This Helps!:)

Explanation:

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(100 points+Brainlyest If Correct)
Alisiya [41]

Answer:

a b d

these are part of an ecosystem or can be

5 0
3 years ago
How many liters of 0.305 M K3PO4 solution are necessary to completely react with 187 mL of 0.0184 M NiCl2 according to the balan
Mashutka [201]

Answer:

6.55 mL of K₃PO₄ are required

Explanation:

We need to propose the reaction, in order to begin:

2K₃PO₄ (aq) + 3NiCl₂(aq) →  Ni₃(PO₄)₂ (s) ↓ + 6KCl (aq)

Molarity = mol/L (Moles of solute that are contained in 1 L of solution.)

M = mol / volume(L).  Let's find out the moles of chloride:

- We first convert the volume from mL to L → 187 mL . 1L / 1000mL = 0.187L

0.0184 M . 0.187L = 0.00344 moles of NiCl₂

Ratio is 3:2. Let's propose this rule of three:

3 moles of chloride react with 2 moles of phosphate

Then, 0.00344 moles of NiCl₂ will react with (0.00344 . 2) /3 = 0.00229 moles of K₃PO₄

M = mol / volume(L) → Volume(L) = mol/M

Volume(L) = 0.00229 mol / 0.350 M = 6.55×10⁻³L

We convert the volume from L to mL → 6.55×10⁻³L . 1000mL /1L = 6.55 mL

5 0
3 years ago
What 4 elements did people originally think made up everything?
ioda

Earth, Air, Water, and Fire

4 0
3 years ago
Read 2 more answers
A molecule of acetonitrile ch3cn contains ________ sigma bonds and ________ pi bonds.
andre [41]

A molecule of acetonitrile ch3cn contains 5 sigma bonds and 2 pi bonds.

What is acetonitrile?

Acetonitrile is a nitrile which is hydrogen cyanide where the hydrogen (H) is replaced by a methyl group (-CH 3 ). Acetonitrile is a volatile organic compound. it is also called Cyanomethane.

To know more about acetonitrile go to the given link :

brainly.com/question/14900816

3 0
1 year ago
Acid chlorides can be converted into primary amines with the loss of a single carbon atom via the Curtius rearrangement. The rea
Marat540 [252]

Answer:

Find the given attachment.

5 0
2 years ago
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