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Roman55 [17]
2 years ago
5

How can you determine the number of electrons in an atom? a. valence number c. chemical number b. atomic number d. ionic number?

Chemistry
2 answers:
Art [367]2 years ago
8 0
You can determine the number of electrons by valence electrons
xeze [42]2 years ago
5 0
You can determine the number of electrons in an atom by the atomic number. B is your answer.
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3 years ago
Gas is heated from 480. K to 750. K and the pressure is kept constant, what final volume would result if the original volume was
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Charles law gives the relationship between volume and temperature of gas.
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8 0
3 years ago
4.2g of sodium bicarbonate is equivalent to how many moles of sodium bicarbonate
Mnenie [13.5K]
<span>The mass of one mole of sodium bicarbonate (aka NaHCO3) is equal to 1 * 22.99g/mol + 1 * 1.00g/mol + 1 * 12.01g/mol + 3 * 16.00g/mol = 83.91g/mol. From this, we can convert 4.2g of NaHCO3 to moles by dividing by 83.91g/mol, to get 0.050 moles of sodium bicarbonate.</span>
7 0
3 years ago
Read 2 more answers
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