Chemistry, 28.12.2019 07:31 fatherbamboo
Amixture consists of sand, salt, and iron filings. which of the following instruments or materials would not be useful in separating this mixture?
a. magnet
b. filter paper
c. screen
d. water
Answers: 3
Chemistry, 21.06.2019 21:00
Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o
Answers: 1
Chemistry, 22.06.2019 03:00
Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?
Answers: 1
Chemistry, 22.06.2019 09:40
Which diagram shows the correct way to represent an ionic compound of magnesium oxide?
Answers: 3
Chemistry, 22.06.2019 12:00
Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
Answers: 1
Amixture consists of sand, salt, and iron filings. which of the following instruments or materials w...
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