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Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
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What is the work done by the electric force to move a 1 c charge from a to b?
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Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved
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Chemistry, 23.06.2019 05:00
Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature
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Write a 4-7 sentence summary on the topic Radiation. (don't mind the orange color)
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