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Sever21 [200]
3 years ago
14

PLS HELP NO LINKS PLS WILL MARK BRAINLIEST IF CORRECT

Chemistry
1 answer:
alexdok [17]3 years ago
8 0

Answer:

The Answer would be B (Materials can be seen in picometers which are trillionths of a meter or the size atoms.

Explanation:

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Please help me the picture is above.
Andreas93 [3]

Answer:

A

Explanation:

bc inorganic compoud refers to all compound that do not contain carbons.

4 0
3 years ago
How many molecules are there in 560 grams of CoCl2?​
Marrrta [24]

Answer:

25.89  × 10²³ molecules

Explanation:

Given data:

Mass of CoCl₂ = 560 g

Number of molecules present = ?

Solution:

Number of moles of CoCl₂:

Number of moles = mass/molar mass

Number of moles = 560 g/ 129.84 g/mol

Number of moles = 4.3 mol

Avogadro number:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ molecules

4.3 mol ×  6.022 × 10²³ molecules /1 mol

25.89  × 10²³ molecules

5 0
2 years ago
The molecules of DNA produced in replication are...
Elza [17]

A) Identical

Hope this helps :)

8 0
3 years ago
Read 2 more answers
I NEED THE ANSWER TO NUMBER 3 pleaseee
postnew [5]

Answer:

density = 2.769 g

Explanation:

4.26 times 0.65

3 0
3 years ago
Which of the following is an example of maintaining homeostasis? A. Learning B. Jumping C. Shivering D. Smiling
yawa3891 [41]

Answer:

Shivering.

Explanation:

Homeostasis is the bodies need to keep things at a normal. When you are cold you shiver to produce body heat and get back to normal  

5 0
3 years ago
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