Chemistry, 01.02.2021 22:00, arimarieestrada
A student was reading about the gases in air. Ozone helps protect Earth from harmful ultraviolet rays that come from the sun. Certain types of pollution created by humans have caused a hole in the ozone layer. This hole is over the South Pole and could become larger if this type of pollution increases. Which question should the student ask to determine if ozone is an elemental molecule? *
A. What is the color of the molecule?
B. What is the shape of the molecule?
C. What elements are present in the molecule?
D. How many atoms are present in the molecule? HEL
Answers: 2
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What does a numerical subscript following an element in a chemical formula mean?
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Chemistry, 22.06.2019 23:10, RealStephani
Match the formula for the following compound: magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(s o4)2·7h2omgso4·7h2o
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Chemistry, 22.06.2019 23:30, emmalado45
If it is an isoelectronic series select true, if not select false. o2-, s2-, se2-, te2- na+, k+, rb+, cs+ n3-, p3-, as3-, sb3- ag, cd+, sn3+, sb4+ f-, cl-, br-, i- f-, ne, na+, mg2+ s2-, s, s6+
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Chemistry, 23.06.2019 02:50, giavanleer14
Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved
Answers: 3
A student was reading about the gases in air. Ozone helps protect Earth from harmful ultraviolet ray...
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