Chemistry, 24.08.2019 04:30 gentrygoated123
Q30.27: the nucleus of the hydrogen atom has a radius of about 1.2 x 10-15 m. the electron is normally at a distance of about 5.3 x 10-11 m. assume that the hydrogen atom is a uniform sphere of radius 5.3 x 10-11 m. what percentage of the volume of the atom is occupied by the nucleus?
Answers: 2
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 23:50
2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.
Answers: 1
Chemistry, 22.06.2019 03:40
Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)
Answers: 3
Chemistry, 22.06.2019 15:00
Answer explain why it is not possible to deduce a complete order of reactivity.
Answers: 3
Q30.27: the nucleus of the hydrogen atom has a radius of about 1.2 x 10-15 m. the electron is norma...
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