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Author Archives: Anonymous

NH4+ and O2- form an ionic bond.  Which ONE would be the cor…

NH4+ and O2- form an ionic bond.  Which ONE would be the correct formula for the resulting compound?

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Elements like sodium are pure substances, but compounds like…

Elements like sodium are pure substances, but compounds like sodium chloride are not pure substances.

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Neon has _____ _______ _____ electrons in the first shell, a…

Neon has _____ _______ _____ electrons in the first shell, and _____ _______ _____ electrons in the second shell (how many in each shell?)

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How many Calories (kilocalories) are in 1g of Ethanol (“alco…

How many Calories (kilocalories) are in 1g of Ethanol (“alcohol”)?

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The formula for Potassium Hydroxide is POH.

The formula for Potassium Hydroxide is POH.

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How many Calories (kilocalories) are in 1g of Carbohydrate?

How many Calories (kilocalories) are in 1g of Carbohydrate?

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Atoms of the same element can have different numbers of Prot…

Atoms of the same element can have different numbers of Protons.

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It is possible to make liquid carbon dioxide (CO2) by adjust…

It is possible to make liquid carbon dioxide (CO2) by adjusting its temperature and pressure.

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The chemical symbol for Iron is __________.

The chemical symbol for Iron is __________.

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CaCl2 is named __________.

CaCl2 is named __________.

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