This question is about states of matter.
Table 1 shows the melting and boiling points of some of the elements in Group 7.
Table 1
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:___________
Use the information from Table 1 to complete the sentence:
Going down group 7, the melting points ____________________.
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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