Heat transfer between two substances is affected by specific heat and the ? Chemical composition of the substances .
State of matter of the substances at room temperature.
Thermal equilibrium of the substances.
Amount of time and area of physical contact between the substances.

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

If 90.0 grams of ethane reacted with excess chlorine, how many grams of dicarbon hexachloride would form

Which phrase best defines a mountain eee