Chemistry, 23.03.2020 04:33 zeesharpe05
You are working in your laboratory and decide to do some cleaning. You find a test tube with some brown substance congealed at the bottom. You take a piece of iron wool to scrub it out, but cannot remove it. You leave the iron wool in the test tube and set it aside to clean your beakers instead. You do not realize the test tube is next to the heater and after a few minutes, a brown gas starts smoking out of the test tube, followed by a reddish-brown gas. Upon observation, the iron wool is coated in a yellow-brown substance. You realize that the mystery substance was .
A. Argon (Ar)
B. Scandium (Sc)
C. Bromine (Br)
D. Iodide (I)
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In the following table, all the columns for the element calcium are filled out correctly. element electron structure of atom electron structure of ion net ionic charge calcium 1s22s22p63s23p64s2 1s32s22p63s23p64s1 +1 true false
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You are working in your laboratory and decide to do some cleaning. You find a test tube with some br...
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