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3 years ago

Don’t skip please!!! I need help

Chemistry

1 answer:

Tamiku [17]3 years ago

7 0

<h3>Further explanation</h3>

Given

Atomic symbol

Required

Atomic composition

Solution

Atomic number = number of protons = number of electrons

Mass Number (A) is the sum of protons and neutrons

Number of protons and Number of Neutrons in nucleus

Number of electrons in the shell

From the picture:

protons = 3

neutrons = 4

electrons = 3

atomic number = protons = electrons = 3

mass number = protons + neutrons = 3+4 = 7

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Answer:

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Explanation:

Step 1: Data given

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Step 2: The balanced equation:

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Step 5: Calculate molarity of HCl

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