Chemistry, 09.10.2021 03:30 raedusty3200
If an element is located in group 14 of the periodic table, which of the following statement(s) can you conclude about the atoms of this element?
A It has four valence electrons.
B It has four energy levels.
C It has four core electrons.
D It has properties similar to carbon.
Answers: 1
Chemistry, 23.06.2019 08:00, yddlex
Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.
Answers: 3
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