Chemistry, 02.04.2021 01:20 BWomack214
Sylvanite is a telluride mineral found in the Transylvania region of Romania. Sylvanite is 6.3% silver and 34.4% gold by mass. How many atoms of gold are present in a 250-kg sample of sylvanite?
Answers: 1
Chemistry, 22.06.2019 00:00
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
Answers: 1
Chemistry, 22.06.2019 06:00
Why is permeable soil best for plants that need a lot of drainage?
Answers: 1
Chemistry, 22.06.2019 15:30
Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.
Answers: 2
Sylvanite is a telluride mineral found in the Transylvania region of Romania. Sylvanite is 6.3% silv...
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