a. +2
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What is the oxidation number of sulfur (s) in magnesium sulfate (mgso4)?
a. +2
b. +3
c. +6 <
d. +7
Answers: 1
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An exothermic reaction is conducted in an insulated calorimeter filled with water. the calorimeter is then sealed so that there is no heat exchanged between the contents of the container and the surrounding air. which of the following statements is true about the reaction?
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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: 2h2o2ā> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
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Ajar is tightly sealed at 22Ā°c and 772 torr what is the pressure inside a jar after its been heated to 178Ā°c
Answers: 1
What is the oxidation number of sulfur (s) in magnesium sulfate (mgso4)?
a. +2
a. +2
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