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lyudmila [28]
2 years ago
10

What is a rule for determining the mass number of an atom or ion?

Chemistry
1 answer:
Semenov [28]2 years ago
7 0

Answer:

The mass number of the atom is equal to the sum of the number of protons and neutrons in the nucleus

Explanation:

Each proton and each neutron weigh one amu( atomic mass unit), adding together the neutrons and protons and multiplying by 1 amu you get the mass of an atom

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An organic compound has the empirical formula C2H4O. what is the compound?
rosijanka [135]

Answer:

The correct answer is - butanoic acid

Explanation:

An empirical formula is the general formula or base formula that is the simplest positive integer ratio of atoms present in a compound. The empirical formula is specific to specific compounds or types of compounds.

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3 years ago
How many atoms of chlorine are in the carbon tetrachloride molecule?
zaharov [31]

Answer:

4 atoms of Chlorine

Explanation:

This is actually easy to explain,

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one = 1 = mono

two = 2 = bi or di

three = 3 = tri

Four = 4 = tetra

Five = 5 = penta

Six = 6 = Hexa

So tetrachloride, means that we have 4 atoms of chlorine in the molecule and the molecule is this one: CCl4

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Answer:

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