Chemistry, 10.11.2021 03:40 joceeeeelyn2899
a teacher cut an apple into three wedges of the same size. SHe dipped one wedge in lemon juice dipped another in water, and left one alone. Then she left the wedges on a paper towel on her desk. After 1 hour, only the wedge that had been dipped in lemon juice was still yellow. The other two wedges had turn brown
Answers: 2
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 15:30
The identities of substances are the same before and after which type of change
Answers: 1
Chemistry, 23.06.2019 00:20
Which diagram represents the phase tha occurs after a solid melts?
Answers: 1
a teacher cut an apple into three wedges of the same size. SHe dipped one wedge in lemon juice dippe...
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