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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
Chemistry, 23.06.2019 16:50, yasyyas646646
An element x has two isotopes. xβ15 has 7 protons and 8 neutrons. determine the atomic number and mass number of the second isotope, which has 10 neutrons in its nucleus.
Answers: 1
Chemistry, 24.06.2019 02:00, Turtles8276
Sharon reads two different articles about avocados. the first article, in a weight loss magazine, claims that avocados are unhealthy because they are high in fat. the second article, in an annual publication from a doctors' group, claims that the fat in avocados is a type that is good for the heart.
Answers: 3
What period of history worsened air and water pollution in the 1800s?
A. The Roaring Twenties
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