Which of these changes do ot involve forming or breaking chemical bonds?
a) burning and melting
b) rusting and cutting
c) burning and digesting
d) boiling and melting

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Humidity is to blame for that muggy, steamy feeling you experience on some hot summer days. what gas in the atmosphere causes humidity? a) oxygen b) hydrogen c) nitrogen d) water vapor