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15 Cards in this Set
- Front
- Back
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CaCl₂is called....
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calcium chloride
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H ₂O is called....
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water
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The little 2 in CaCl₂ is called a ...
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subscript
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What is the oxidation number of Ca in CaCl₂?
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2+
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What is the overall charge of CaCl₂?
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Zero, since there is 1 Ca with a +2 and 2 Cl each with a -1.
[+2 + (-2) = 0] |
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Ammonium sulfate is written as....
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(NH₄)₂SO₄
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In (NH₄)₂SO₄ there are ___ N atoms, ___H atoms, __S atoms, and ___O atoms.
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2N
8H 1S 4O |
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In (NH₄)₂SO₄, it takes ___ ammonium ions to balance 1 sulfate ion.
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2
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(NH₄)₂SO₄has ___ different polyatomic ions in it.
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2
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Na₃PO₄is called...
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Sodium phosphate (NOT trisodium phosphate, which is written on many commercial labels.)
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In Na₃PO₄, the oxidation number of sodium is....
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1+
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In Na₃PO₄, the oxidation number of phosphate is...
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3-
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The formula for magnesium hydroxide is written as...
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Mg(OH)₂
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In Mg(OH)₂, why is there a 2 after the (OH)?
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Because the Mg is a 2+ while the hydroxide is just 1-
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Why are there parentheses ( ) in Mg(OH)₂
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OH is a polyatomic ion and you must show that there are two of them.
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