What temperature scale(s) are used most often by scientists?
a. only celsius
b. celsius and kelvin
c. fahrenheit and kelvind. fahrenheit and celsius

When an object is heated it contracts. a. true b. false

Which sound characteristic is not affected by the relative motion of an object

According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f