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Firlakuza [10]
2 years ago
13

If an atom has 11 atomic number and 11 neutrons how many electrons are there??

Chemistry
1 answer:
Fantom [35]2 years ago
5 0

Answer:

11 electrons

Explanation:

The atomic number of sodium is 11. This tells us that sodium has 11 protons and because it is neutral it has 11 electrons. The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass).

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chegg write a net ionic equation describing the oxidation of no2 2 to no3 2 by o2 in a basic solution.
Marina86 [1]

When the same species undergoes both oxidation and reduction in a single redox reaction, this is referred to as a disproportionation. Therefore, divide it into two equal reactions.

NO2→NO^−3

NO2→NO

and do the usual changes

First, balance the two half reactions:

3. NO2 +H2O →NO^−3 + 2 H^+ + e−

4. NO2 +2 H^+ + 2e− → NO + H2O

Now multiply one or both half-reactions to ensure that each has the same number of electrons. Here, Eqn (3) x 2 results in each half-reaction having two electrons:

5. 2 NO2 + 2 H2O → 2 NO^−3 + 4H^+ + 2e−

Now add Eqn 4 and 5 (the electrons now cancel each other):

3NO2 + 2H^+ + 2H2O → NO + 2 NO−3 + H2O + 4H+

and cancel terms that’s common to both sides:

3NO2 + H2O → NO + 2NO^−3 + 2H+

This is the net ionic equation describing the oxidation of NO2 to NO3 in basic solution.

Learn more about balancing equation here:

brainly.com/question/26227625

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7 0
1 year ago
Muscles need a stimulus from which to of the following to "tell" them contract? A. A muscle call B. The skeleton C. A nerve cell
kompoz [17]
The answer is C a nerve cell 
4 0
3 years ago
A balloon has a volume of 1.40 L at 24.0ºC. The balloon is heated to 48.0°C. Calculate the new volume of the balloon.
ruslelena [56]

Answer:I am not sure how

Explanation: sorry free trial

5 0
3 years ago
Which of these elements is the most chemically reactive?
Angelina_Jolie [31]

Answer:

a zinc is the most reactive

3 0
2 years ago
Calculate the mass percent composition of lithium in Li3PO4.
tino4ka555 [31]

Answer:

B) 17.98 %

Explanation:

3 Li =21  P = 31     4O  64  == 116

21/116=18.1%  

Closest 17.98

4 0
3 years ago
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