Chemistry, 27.01.2020 20:31 soystersoce
These models show the electron structures of two different nonmetal elements. element 1 at left has a purple circle at center with 2 concentric black lines around it. the first line has 2 small green balls on it. the second line has 8 small green balls on it. element 2 at right has a purple center with 5 concentric circles around it, with the first circle innermost. the first circle has 2 small green balls on it, and the second circle has 8 small green balls on it. the third circle has 18 small green balls on it, and the fourth circle has 18 small green balls on it. the fifth circle has 6 small green balls on it. which element is likely more reactive, and why? element 1 is more reactive because it has fewer electron shells and is toward the top of its group on the periodic table. element 1 is more reactive because it has more electrons in its valence shell and is farther to the right on the periodic table. element 2 is more reactive because it does not have a valence shell close to the nucleus, so it will attract electrons. element 2 is more reactive because it does not have a full valence shell, so it will attract electrons.
Answers: 3
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 16:30
For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
Answers: 2
Chemistry, 22.06.2019 21:30
Plzz a sample of table sugar (sucrose, c12h22o11) has a mass of 7.801 g. â—Ź a) calculate the number of moles of c12h22o11 in the sample b) calculate the number of moles of each element in c12h22o11 (number of moles of c, number of moles of h & number of moles of o) in the sample. (use your answer from part a as your starting point.) show your work and highlight your final answer. calculate the number of atoms of each element in c12h22o11 (number of atoms of c, number of atoms of h & number of atoms of o) in the sample. (use your answers from part b as your starting for each element.) show your work and highlight your final answer.
Answers: 1
These models show the electron structures of two different nonmetal elements. element 1 at left has...
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