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16 Cards in this Set
- Front
- Back
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What safety precautions are observed in Lab 4B?
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1. Do not stop centrifuge with finger
2. NaOH, HCl, acetic acid, NH3 can all cause burns, so handle with caution. 3. Barium is poisonous, so wash your hands after handling it. |
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What safety precautions are observed in Lab 5B?
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1. KClO3 is a strong oxidizer and should not come in contact with the stopper or paper.
2. Make sure all the gas outlets around you are completely shut off 3. Keep clamp open when boiling to avoid gas pressure buildup. |
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What safety precautions are observed in Lab 7?
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1. Never use your mouth to draw liquid into a pipette.
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What safety precautions are observed in Lab 8?
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1. Lead, Barium, ad uxalate are all poisonous, and you should wash your hands after handling them.
2. never use your finger as a stopper. |
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Molecular equation for calcium nitrate and sodium sulfate
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Ca[NO3]2 (aq) + Na2SO4 (aq) -> 2NaNO3 (aq) + CaSO4 (s)
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net ionic equation for calcium nitrate and sodium sulfate
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Ca (aq) + SO4 (aq) -> CaSO4 (s)
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Net ionic equation for hydrochloric acid and nickel hydroxide
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2H (aq) + Ni[OH]2 (aq) -> 2H2O (l) + Ni (aq)
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When testing with litmus paper, you get a blue stain, the solution is
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Basic
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When testing with litmus paper, you get a red stain, the solution is
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Acidic
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Chemical equation for the decomposition of Potassium Chlorate.
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2KClO3 (s) -> KCl (s) + 3O2 (g)
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What is Beer's Law?
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A=k(c)
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What do the symbols in Beer's Law stand for?
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A= Absorbance
k= Beer's constant c= concentration |
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In the equation M1 V1= M2 V2, what do the M's stand for?
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M1= concentration of unknown
M2= total concentration of solution |
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What trend is there for Group IIA Hydroxides?
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Solubility Increases down the group
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What trend is there for Group IIA compounds of Halides?
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They are soluble
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What trend is there for Group IIA compounds of carbonate?
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Solubility decreases down the group
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