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3 years ago

Please please help me i’m so confused! i will give brainleiest answer

Chemistry

1 answer:

pochemuha3 years ago

7 0

Answer:

PLEASE MARK AS BRAINLIEST!!

Explanation:

Calcium has an atomic number of 20 and an atomic mass of 40

The mass number of an isotope is the sum of the number of protons and neutrons in the atomic nucleus. The atomic number is the number of protons. The calcium-40 isotope has a mass number of 40 , and an atomic number of 20 , therefore it has 20 protons.

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jeka57 [31]

Answer:

$\boxed{\text{36 mL}}$

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$\rm HCOOH + NaOH $ \longrightarrow$ HCOONa + H$_{2}$O$

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