True or false
The weighted average of the mass numbers of all the isotopes that
occur in natu...
Chemistry, 21.12.2020 07:00 ashhleyjohnson
True or false
The weighted average of the mass numbers of all the isotopes that
occur in nature for a particular element is the average atomic number.
Answers: 3
Chemistry, 21.06.2019 15:30
1. baking powder is a 1: 1 molar mixture of cream of tartar (khc4h4o6) and baking soda (nahco3). a recipe calls for two teaspoons (a total of 8.0 grams) of cream of tartar. how much baking soda must be added for both materials to react completely?
Answers: 2
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List four observations that indicate that a chemical reaction may be taking place
Answers: 1
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If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution
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The data below were determined for the reaction shown below. s2o82β + 3i β (aq) β 2so42β + i3β expt. # [s2o82β] (m) [i β] (m) initial rate 1 0.038 0.060 1.4 Γ 10 β 5 m/s 2 0.076 0.060 2.8 Γ 10 β 5 m/s 3 0.076 0.030 1.4 Γ 10 β 5 m/s the rate law for this reaction must be:
Answers: 1
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