Chemical properties are characteristics that change a substance. For example, when a bike comes in contact of water or oxygen it turns into rust which is Fe203. So it came from Iron and changed chemically to rust.
Physical is different because it doesn't change its substance. Example, melting an Ice cube is a physically change because an ice cube is just frozen water and when melted, its still water just not frozen.
5.2/ 24.3 = 0.214
0.214 x 2 = 0.428
0.428 x 36.5= 15.6g
Alpha and beta particles, I saw this somewhere, but I can't remember where
Answer:
1) ) CBr₄ has a higher boiling point than CCl₄: True
2 CBr₄ has weaker intermolecular forces than CCl₄: False
3) CBr₄ has a higher vapor pressure at the same temperature than CCl₄: False
4) CBr₄ is more volatile than CCl₄: False
Explanation:
1) ) CBr₄ has a higher boiling point than CCl₄: True :
Due to higher molecular weight CBr₄ has more london disperion forces thus making the intermolecular interactions stronger and thus it need more temperature to boil it off.
2 CBr₄ has weaker intermolecular forces than CCl₄: False
Due to higher molecular weight CBr₄ has more london disperion forces thus making the intermolecular interactions stronger.
3) CBr₄ has a higher vapor pressure at the same temperature than CCl₄: False
Due to higher molecular weight CBr₄ has more london disperion forces thus making the intermolecular interactions stronger. Thus the vapor pressure of it will be less than CCl₄ at the same temperature.
4) CBr₄ is more volatile than CCl₄: False
Due to higher molecular weight CBr₄ has more london disperion forces thus making the intermolecular interactions stronger. Thus CCl₄ is more volatile.