Chemistry, 28.06.2019 07:30, ineedhelpireallydo
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she said six neutrons to her model so far. how many more neutrons does she need to add to compare to her neutral atom of magnesium a) 3 b) 6 c) 12 d) 18
Answers: 1
Chemistry, 21.06.2019 14:10, coralstoner6793
Which of these will change if the air in aclosed bottle is heated? abcdthe mass of the airthe composition of the airthe air pressure in the bottlethe number of air molecules in the bottle
Answers: 3
Chemistry, 21.06.2019 18:00, 767sebmont
Temperature and kinetic energy are proportional. a) adirectly b) directly c) indirectly
Answers: 2
Chemistry, 23.06.2019 10:30, EstherAbuwaah
Identify the limiting reactant when 9.65-g h2so4 reacts with 6.10-g of naoh. the equation is h2s04 + 2naoh = 2h2o + na2so4• what is the theoretical yield of na2so4, in grams? • how much of the excess reagent will remain after the reaction has been completed? • if 10.5-g of na2so4 are actually recovered experimentally, what is the percent yield?
Answers: 3
Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class...
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