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Experiment 3 lab qui

QuestionAnswer
What is the title of today's experiment? FLAME TESTS FORMETALS
What is the purpose of the experiment? To observe and identify metallic ions, using flame tests.
Give one safety precaution for the experiment. Wear your safety goggles.
How many known metallic salts will be tested in this experiment? Seven (KNO₃, Ca(NO₃)₂, Sr(NO₃)₂, LiNO₃, Cu(NO₃)₂, NaNO₃, Ba(NO₃)₂)
What piece of equipment will be used to introduce the samples into the flame? Platinum wire or nichrome wire loop
What chemical will be used to clean the wire loop between tests? 6M hydrochloric acid (HCl)
What special material is used to view the flame colors of sodium and potassium salts more clearly? Cobalt-blue glass
Give one safety precaution you must follow during the experiment. Wear safety goggles
What do the electrons of an element do when heated that causes light to be emitted? They become excited to higher energy levels and then fall back down, releasing photons.
The color of the flame depends on the ______________ of the emitted photons. energy
You will also test an ___________ salt and try to determine its identity. unknown
Created by: Masterlearner5
 



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