Butanoic acid, ch3ch2ch2cooh, is a weak acid and ethylamine, ch3ch2nh2, is a weak base. Explain why butanoic acid is a liquid at room temperature while ethylamine is a gas at room temperature.

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If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

Answerhund's rule;

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