Chemistry, 01.11.2020 04:20 vanessajimenez361
A gravel can be broken down into different kinds of substances by physical processes. No chemical reactions are
needed to separate different parts of gravel into pure substances. This is because gravel is a(n)
O compound
O element
O homogeneous mixture
O heterogeneous mixture
Answers: 1
Chemistry, 22.06.2019 05:40
Consider the elements bromine and chlorine; which elements has a larger ionic radius ?
Answers: 1
Chemistry, 22.06.2019 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Chemistry, 22.06.2019 13:00
16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.
Answers: 2
A gravel can be broken down into different kinds of substances by physical processes. No chemical re...
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