Chemistry, 05.07.2019 08:30 hooplikenari
Acompound is 40.0% c, 6.70% h, and 53.3% o by mass. assume that we have a 100.-g sample of this compound. part a what are the subscripts in the empirical formula of this compound? enter the subscripts for c, h, and o, respectively, separated by commas (e. g., 5,6,7).
Answers: 1
Chemistry, 22.06.2019 02:40
Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?
Answers: 2
Chemistry, 22.06.2019 03:00
In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?
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
Chemistry, 22.06.2019 15:20
Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma
Answers: 1
Acompound is 40.0% c, 6.70% h, and 53.3% o by mass. assume that we have a 100.-g sample of this comp...
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