This question is about states of matter.
Table 1 shows the melting and boiling points of some of the elements in Group 7.
Table 1Â
Element | Melting point in °C | Boiling point in °C |
Fluorine | –220 | –188 |
Chlorine | –101 | –35 |
Bromine | –7 | 59 |
Give the state of each substance at 50 oC
Fluorine: ___________
Chlorine:___________
Bromine:___________Â
Use the information from Table 1Â to complete the sentence:
Going down group 7, the melting points ____________________.Â
This is because the size of the molecules ___________________ so the forces between the molecules get ____________________.
A solution of potassium bromide will react with lead nitrate in the following reaction:
Pb (NO3)2 (aq) + 2KBr (aq) → 2KNO3 (aq) + PbBr2 (s)
What information does the equation tell you about the products made in this reaction?
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