At the beginning of this lesson, there was a question about two acids. vinegar, which contains acetic acid, is used in foods and has few safety concerns. hydrochloric acid is used in chemistry labs and requires the use of safety goggles and gloves. why do the safety concerns for these two acids differ?
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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.)
Answers: 2
Chemistry, 22.06.2019 12:30
Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
Answers: 2
Chemistry, 23.06.2019 06:30
What is the chemical formula for a compound between li and br? libr li2br libr2 libr3
Answers: 1
At the beginning of this lesson, there was a question about two acids. vinegar, which contains aceti...
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