The process described by the change represented below is A) Condensation B) Evap
ID: 978826 • Letter: T
Question
The process described by the change represented below is A) Condensation B) Evaporation C) Freezing D) Deposition E) Pouring 2. A heating curve illustrates 12. A) what a substance looks like as it is heated. B) what happens to the particles of a substance as it is heated. C) what happens to the heat applied as the temperature is increased D) the changes in the temperature and physical state of a substance as it is beated E) the chemical changes that occur as the substance is heated. 13. 13. Double and triple bonds form because A) the atoms involved have high electronegativities. B) single covalent bonds do not give all of the atoms in the molecule eight valence electrons. C) one of the atoms in the molecule has more than eight valence electrons D) the ions involved have charges larger than one. E) there is at least one hydrogen atom involved in the bond. 14. As a solid element melts, the atoms become and 14. they haveattraction for one another A) more separated, more B) more separated, less C) closer together, more D) closer together, less E) larger, greaterExplanation / Answer
11
The correct answer is B) evaporation.
Because here the inter molecular distance will increases.
12.
The heat curve illustrates that the changes in the temperature and physical state of a substance as it is heated.
Like when ice is heat then it will converted into liquid state with temperature change. Thus the correct answer is D)
13. double and triple bond form because single covalent bonds do not give all of the atoms in the molecules eight valence electrons.
Like in CO2 here are double bond between C- and O
O=C=O
If single bond is present then O-C-O, Then the carbon has only six electrons.
14. When a solid melts the atoms of solid becomes more separated and they have less attraction for one another because in solid state state atoms are more close with more attraction force of bind. Thus the correct answer is B)
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