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Sergeeva-Olga [200]
2 years ago
13

How many Na and Cl molucules are in this atom? Please help

Chemistry
2 answers:
kati45 [8]2 years ago
5 0
5 Na molecules and 5 Cl molecules
Ahat [919]2 years ago
4 0

Answer:  Check my answers.

Explanation:

There are four classes of macromolecules (polysaccharides or carbohydrates, triglycerides or lipids, polypeptides or proteins, and nucleic acids such as DNA & RNA). Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON).

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he electrical leads from the Constant Current System are damaged slightly, leading to a small "short-circuit" that results in 10
VikaD [51]

Answer:

The Avogadro's Number will reduce in value

Explanation:

From the question we are told that

The current pass through the short circuit is 0.1 *I

Here I is the total current

Generally Avogadro's Number is mathematically represented as

N_A =  \frac{Q}{ 2 *  n * e}

Here Q is the charge which is mathematically represented as

Q =  It

        n  is number of moles

        e is the charge on an electron

 So

       N_A =  \frac{I * t }{ 2 *  n * e}

Now when the current decreases from 100% to  90% due to the short circuit . this will also reduce  the no of moles of metal  dissolved hence from the equation we see that the Avogadro's Number will reduce

8 0
2 years ago
3) Rubidium reacts with rubidium nitrate to produce rubidium oxide and nitrogen gas
postnew [5]

Answer:

3) Rubidium reacts with rubidium nitrate to produce rubidium oxide and nitrogen gas

a- Write the chemical reaction

10Rb + 2RbNO3 → 6Rb2O + N2

5 0
2 years ago
How do you think the invention of the microscope influenced the cell theory?
ikadub [295]
Since cells are hard to see the microscope helped them see. scientist were able to actually see cells in tissues placed under the microscope.
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2 years ago
What volume of 1.60 M hydrochloric acid solution (HCI) is required to neutralize 48.0 mL of 0.200 M sodium
nexus9112 [7]

Answer:

Volume of HCl require =  6 mL

Explanation:

Given data:

Volume of HCl require = ?

Molarity of HCl solution = 1.60 M

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Solution:

Formula:

M₁V₁     =      M₂V₂

By putting values,

1.60 M×V₁  =  0.200 M×48.0 mL

V₁  =  0.200 M×48.0 mL/1.60 M

V₁  =  9.6 M .mL /1.60 M

V₁  =  6 mL

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2 years ago
The brightness of a star is determined by _____.
Travka [436]

Answer:

Size and Temperature or E & B

Explanation:

7 0
2 years ago
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