Why did planets gravitational attraction increase when they grew larger?

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '