Chemistry, 08.11.2019 16:31 punchbug007
“i believe the identity of the unknown element is sodium, in part because of its gray color and in part because the metal reacted with water.” which correctly evaluates the statement?
a. not reliable because many metals are gray and several react with water
b. reliable because the author believes the statement to be valid
c. not reliable because the identity of the element was not originally known
d. reliable because it deals with science topics such as metals and chemical reactivity
Answers: 3
Chemistry, 21.06.2019 22:00
Afamily is one another name for a group on the table of elements.
Answers: 1
Chemistry, 22.06.2019 19:20
15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
Answers: 1
Chemistry, 23.06.2019 01:00
Chromium(iii) sulfate is a transition metal compound containing the metal chromium and the polyatomic ion sulfate. the oxidation state of chromium in this compound is , and the chemical formula of the compound is ( ) . reset next
Answers: 3
“i believe the identity of the unknown element is sodium, in part because of its gray color and in p...
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