Chemistry, 01.03.2021 21:30 Lollipop1287
Which of the following statements about atoms is true?
A) atoms can be seen with the human eye
B)atoms can be divided or destroyed in chemical reactions or through physical changes
C) in a chemical reaction, new atoms can appear that weren’t there to start with
D)atoms make up substances
Answers: 2
Chemistry, 21.06.2019 22:30
Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.
Answers: 2
Chemistry, 22.06.2019 08:30
Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?
Answers: 1
Chemistry, 22.06.2019 18:30
Which sample at stp has the same number of atoms as 18 liters of ne at stp
Answers: 1
Which of the following statements about atoms is true?
A) atoms can be seen with the human eye
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