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attashe74 [19]
3 years ago
6

If an atom has 18 protons, 15 neutrons, and 22 electrons, what is the atom's electrical charge?

Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
3 0

Charge = number of proton - number of electron = 18-22 = -4

SO, OPTION A IS YOUR ANSWER........

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Question 3 (Molarity)
antiseptic1488 [7]

Answer:

The molarity of the solution is 1,03 M.

Explanation:

Molarity is a concentration measure that expresses the moles of solute (in this case HBR) in 1 liter of solution (1000ml). First we calculate the mass of 1 mol of HBr, to calculate the moles that are in 50 g of said compound:

Weight 1 mol HBr= Weight H + Weight Br= 1,01g + 79,90g= 80, 91 g/mol

80,91 g ----1 mol HBr

50,0 g------x= (50,0 g x1 mol HBr)/80,91 g= 0,62 mol HBr

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1000ml solution------x= (1000ml solution x 0,62 mol HBr)/600 ml solution

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8 0
3 years ago
What is an atom?explain it plz.
Contact [7]
It is the smallest unit it is what makes up everything

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6 0
3 years ago
What is the total charge of the nucleus of a carbon atom?<br> (1) –6 (3) +6<br> (2) 0 (4) +12
NeX [460]
Carbon atomic number ⇒ 6
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Carbon atomic number - Carbon mass number = number of neutrons.
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The total charge of the nucleus of a carbon atom ⇒⇒⇒ +6.

So the naswer is (3) +6




3 0
3 years ago
What is a way in which nuclear fusion is used?
Marta_Voda [28]

Answer:It is a nuclear process, where energy is produced by smashing together light atoms. It is the opposite reaction of fission, where heavy isotopes are split apart.

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It’s most easily achieved on Earth by combining two isotopes of hydrogen: deuterium and tritium. Hydrogen is the lightest of all the elements, being made up of a single proton and a electron. Deuterium has an extra neutron in its nucleus; it can replace one of the hydrogen atoms in H20 to make what is called “heavy water.”

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3 years ago
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