Why can an element assume the configuration of a noble gas without actually being a noble gas? What allows the element to retain its identity?
Only the number of electrons change the configuration, but the number of protons in the nucleus determines the identity.
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5
What is the formula for percent yield?
Actual yeild / theoretical yield = as a percent
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15
Name the ion: KI
Potassium Iodide
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15
Why do some elements "disobey" the octet rule when forming bonds in covalent compounds?
Pairing electrons can fill the d orbital(s) and thus form more bonds than allowed by the valence shell.
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15
How many bonds does carbon like to form in covalent molecules?
4 bonds
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15
What geometric shape results from a central atom that is bonded to two other atoms and has a single lone pair?
Planar trigonal
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15
How do we find the theoretical yield of a reaction?
Gram-mole conversions using the balanced reaction and the amount of reactant(s) used.
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How many bonds does nitrogen like to form in covalent molecules?
3 bonds
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15
What is the oxidation number of oxygen in NaOH?
-2
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What geometric shape results from a central atom that is bonded to a single atom and has three lone pairs?
Linear
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15
What ions are released by acids and bases respectively?
Hydronium and hydroxide ions
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15
What's the difference between ions and molecules?
Ions are formed when electrons are transferred and atoms are attracted by charge. Molecules are formed when atoms share electrons in different types of bonds.