Chemistry, 06.11.2020 09:30 oscarmasinde44
Which of these statements best describes how scientific ideas change?
Answers: 2
Chemistry, 23.06.2019 01:00
Which of the following is a physical change? a.burning a piece of wood b.sawing a piece of wood in half c.rust forming on an iron fence d.a copper roof changing color from orange to green
Answers: 1
Chemistry, 23.06.2019 06:00
β’what conclusions can you make about the relationship between the volume of a gas and its temperature? β’ what conclusions can you make about the relationship between the volume of a gas and its pressure? β’ what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?
Answers: 3
Chemistry, 23.06.2019 07:00
What is the difference between covalent bonds and ionic bonds? covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms. covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms. covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms. covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.
Answers: 1
Chemistry, 23.06.2019 10:30
Identify the limiting reactant when 9.65-g h2so4 reacts with 6.10-g of naoh.the equation is h2s04 + 2naoh = 2h2o + na2so4β’ what is the theoretical yield of na2so4, in grams? β’ how much of the excess reagent will remain after the reaction has been completed? β’ if 10.5-g of na2so4 are actually recovered experimentally, what is the percent yield?
Answers: 3
Which of these statements best describes how scientific ideas change?...
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