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likoan [24]
3 years ago
13

What is the charge on an electron? –1 0 +1 +2

Chemistry
2 answers:
Vladimir [108]3 years ago
5 0
An electron is a negative particle, so the answer is -1
Flauer [41]3 years ago
4 0

Answer : The charge on an electron is -1.

Explanation :

Electron is a subatomic particle whose symbol is e^-.

The electrical charge on an electron is negative.

The electron was discovered by the J.J. Thomson.

The mass of an electron is 9.1\times 10^{-31}Kg.

The charge on electron and proton is equal but opposite.

Neutron has zero charge and proton has +1 charge.

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Calculate the molarity of 13.1 g of NaCl in 727 mL of solution
valentina_108 [34]

Answer:

The molarity of the solution is 0,31 M

Explanation:

We calculate the weight of 1 mol of NaCl from the atomic weights of each element of the periodic table. Then, we calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case NaCl) in 1000ml of solution (1 liter)

Weight 1 mol NaCl= Weight Na + Weight Cl= 23 g + 35, 5 g= 58, 5 g

58, 5 g-----1 mol NaCl

13,1 g ---------x= (13,1 g x 1 mol NaCl)/58, 5 g= 0, 224 mol NaCl

727 ml solution------ 0, 224 mol NaCl

1000ml solution------x= (1000ml solutionx0, 224 mol NaCl)/727 ml solution

x=0,308 mol NaCl---> <em>The solution is 0,31 molar (0,31 M)</em>

5 0
3 years ago
(5.625 + 8.15) x 2.34 + 3.2
dalvyx [7]

The answer is 35.4335

Hope this helped! (Plz mark me brainliest!)

3 0
3 years ago
Read 2 more answers
Do protons determine isotopes
Bezzdna [24]

Answer:

No

Explanation:

Protons determine the type of element it is which the number of protons.

Isotopes are determined by the same elements with the same amount of protons, but different number of neutrons.

5 0
3 years ago
23g of sodium reacted with 35.5g og chlorine calculate the mass of the sodium chloride formed. Help!
Simora [160]
Hope this helps you.

4 0
3 years ago
Which of the following has the correct name for either the acid or base
Vlad1618 [11]

Answer:

Explanation:

harmless

...............

6 0
3 years ago
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