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OCR Chemistry AS > Chapter 2 Atoms, Ions and electrons > Flashcards

Chapter 2 Atoms, Ions and electrons Flashcards

1
Q

What is the relative atomic mass? (Ar)

A

It is the weighted mean mass of an atom of an element compared to 1/12th of the mass of an atom of carbon-12.

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2
Q

What is the relative isotopic mass?

A

Is the mass of an atom of an isotope, compared to 1/12th of the mass of an atom of carbon-12

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3
Q

What are the ions for these molecules:
-Hydroxide
-Nitrate
-Ammonium
-Sulfate
-Carbonate

A

OH-
NO3-
NH4+
SO4 2-
CO3 2-

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4
Q
A
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OCR Chemistry AS (5 decks)

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