Chemistry, 21.08.2019 22:20, Ashesnwine9351
A. use the following steps to balance the redox reaction below. al(s) ni2 (aq) ni(s) al3 (aq)
i. write the oxidation and reduction half-reactions. make sure each half-reaction is balanced for number of atoms and charge.
ii. multiply each half-reaction by the correct number in order to balance charges for the two half-reactions.
iii. add the equations and simplify to get a balanced equation.
Answers: 1
Chemistry, 22.06.2019 21:40, k3rbycalilung
Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.
Answers: 2
Chemistry, 23.06.2019 01:30, jarteria0
Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.
Answers: 2
A. use the following steps to balance the redox reaction below. al(s) ni2 (aq) ni(s) al3 (aq)
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