Chemistry, 20.08.2019 16:20 danielaguardado63
Looking at the same nonmetal group on the periodic table, how does the reactivity of an element in period 2 compare to the reactivity of an element in period 4?
Answers: 1
Chemistry, 22.06.2019 19:20
For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)
Answers: 1
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Alithium atom has three protons, three neutrons, and three electrons. what is the overall charge on this atom?
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Chemistry, 23.06.2019 23:10
An object was measured by a worker as 14.6cm long, however, the manufacturer specifications list the length of the object at 14.4cm. what is the percent error in the worker's measurement?
Answers: 1
Looking at the same nonmetal group on the periodic table, how does the reactivity of an element in p...
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