bonds

Question 1

what is energy taken in for

Answer 1

to break existing chemical bonds

Question 2

what is energy released for

Answer 2

when new bonds are made

Question 3

what is the 🔼H In terms of making and breaking bonds

Answer 3

the difference between the energy taken in when bonds are broken and the energy given out when new bonds are made

Question 4

what does a positive delta H mean in making and breaking bonds

Answer 4

endothermic reaction

Question 5

what does a negative delta H mean in making and breaking bonds

Answer 5

exothermic reaction

Question 6

what does ionic boning occur between

Answer 6

metals and non metals

Question 7

what does ionic bonding involve

Answer 7

the transfer of electrons from the metal atom to the non metal atom, so the non metal becomes will become positive and the metal negative

Question 8

what does ionic boning cause the metal and non metal to be

Answer 8

attracted to each other as they are oppositely charged

Question 9

what is covalent bonding

Answer 9

2 non metals and the sharing of electrons

Question 10

why is covalent bonding so strong

Answer 10

because of the electrostatic attraction between the 2 positive nuclei and their shared negative electrons