Chemistry, 13.02.2021 18:30 naenae2cold12021
HI GUYS I NEED HELP ON CHEMISTRY SO I NEED CHEMISTRY STUDENTS TO ANSWER THIS PLEASE DONT GUESS OKAY? <3
5 A mixture containing two anions was tested and the results are shown below.
test result
dilute nitric acid added effervescence of a gas which
turned limewater milky
dilute nitric acid added, followed
by aqueous silver nitrate
yellow precipitate formed
Which anions were present?
A carbonate and chloride
B carbonate and iodide
C sulfate and chloride
D sulfate and iodide
Answers: 2
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Which states of matter have particles that move independently of one another with very little attraction?
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Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3
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HI GUYS I NEED HELP ON CHEMISTRY SO I NEED CHEMISTRY STUDENTS TO ANSWER THIS PLEASE DONT GUESS OKAY?...
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