Chemistry, 11.01.2021 18:20 bananaslugs
Which question correctly describes how light is produced *
electrons jump to higher energy level, and then fall back down again very quickly releasing energy
electrons start in the excited state and then lose energy after a long period of time
electrons absorb energy to go to the ground state and then release energy
electrons jump to a lower energy level and then fall to the excited state and release energy
How many rings would you draw in a Bohr Diagram for an atom with an atomic number of 56 and an electron configuration in the ground state
five rings because that atom has five electrons
six rings because that atom has six energy levels
four rings because that atom has four valence electrons
six rings because that atom had two valence electrons jump to a higher energy level.
Both 2 and 4
Answers: 3
Chemistry, 21.06.2019 20:30
Pbco3 –> pbo+ co2. how many liters of carbon dioxide gas is produced from the decomposition of 32 grams of lead (ll) carbonate?
Answers: 1
Chemistry, 22.06.2019 07:00
Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant
Answers: 3
Chemistry, 22.06.2019 20:00
Iam hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?
Answers: 1
Chemistry, 22.06.2019 20:20
Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa
Answers: 2
Which question correctly describes how light is produced *
electrons jump to higher energy level, a...
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