An electron in a hydrogen atom moves from level 1 to level 4. the electron then drops from level 4 to level 2. which statement describes the most likely result? the energy absorbed in the first move equals the energy released in the second move. the energy absorbed in the first move is greater than the energy released in the second move. the energy released in the first move equals the energy absorbed in the second move. the energy released in the first move is greater than the energy absorbed in the second move.

What is the name of the enzyme that forms at the start of transcription?

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?