The F-C-F bond angle in the CH2F2 molecule is approximately . Group of answer choices

180°

90°

120°

60°

109.5°

What is the work done by the electric force to move a 1 c charge from a to b?

Before it was launched, a helium-filled balloon had a pressure of 201 kpa at a temperature of 27°c. at an altitude of 15,000 m, the pressure had decreased to 2.5 kpa and the temperature had dropped to -14 °c. the volume of the balloon increased to 59.3 m3. what is the original volume of the balloon? 13 m3 0.85 m3 0.077 m3 1.17 m3

The graph shows one consequence of urban sprawl. how did urban sprawl contribute to the change in biodiversity