Chemistry, 10.11.2019 06:31 heggestade
The element radium is found in period 7 and group 2 of the periodic table of the elements, and it has an atomic number of 88. how many s orbitals are used in an atom of radium?
44
88
7
2
Answers: 1
Chemistry, 21.06.2019 20:30, Kaylinne1181
This chart represents the melting point of several substance. what besy explains the high melting point of the salt?
Answers: 2
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In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)
Answers: 3
Chemistry, 22.06.2019 15:30, alaf05160
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
The element radium is found in period 7 and group 2 of the periodic table of the elements, and it ha...
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