Chemistry, 19.07.2019 13:30 emobirdy1122
Which of the following is true? a. the least reactive element in group 2 is the one with the largest atomic radium and the least amount of attraction between the nucleus and the valence electrons. b. group 1 elements are more reactive than the group 2 elements because they have more valence electrons to lose. c. cesium is the most active group 1 metal, because its valence electron is held more tightly than the others in the same group. d. lithium is the least reactive element in group 1, because it is the smallest and holds its valence electron more tightly than the others in the same group.
Answers: 1
Chemistry, 21.06.2019 22:30
Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l
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Chemistry, 21.06.2019 23:30
Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.
Answers: 2
Chemistry, 22.06.2019 12:00
What is the percentage of hydrogen in nitrogen trihydride
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Chemistry, 22.06.2019 14:30
The three types is stress that act on earths rocks are compression, tension, and
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Which of the following is true? a. the least reactive element in group 2 is the one with the large...
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