Chemistry, 20.09.2019 13:30 xitlalizt83341
The atomic mass of beryllium (be) is 9.01 amu. the atomic mass of calcium (ca), which is in the same group as beryllium, is 40.08 amu. based only on this information, what would you predict to be the atomic mass of magnesium (mg), which is also in the same group but is between be and ca?
Answers: 1
Chemistry, 22.06.2019 05:30
Arecipe calls for 1.2 cups of oil. how many liters of oil is this?
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Chemistry, 22.06.2019 20:10
Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)
Answers: 1
Chemistry, 23.06.2019 06:00
When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
Chemistry, 23.06.2019 12:30
How do you interpret a chromatogram for what mixtures contain?
Answers: 3
The atomic mass of beryllium (be) is 9.01 amu. the atomic mass of calcium (ca), which is in the same...
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