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Chemistry, 21.06.2019 15:00
Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.
Answers: 2
Chemistry, 21.06.2019 21:00
Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing
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Chemistry, 22.06.2019 08:30
What is the independent variable in this investigation? mass volume sample number substance density
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Chemistry, 22.06.2019 11:00
When hydrochloric acid reacts with potassium hydroxide solution, the following reaction occurs. hcl (aq) + koh (aq) h2o (l) + kcl (aq) the reaction gives off heat energy, so it is an reaction.
Answers: 1
First letter of chemical symbol is?...
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50
Mathematics, 26.02.2021 20:50