The structure shown below is a line drawing of non cyclic amp, an important messenger molecule in molecular communication systems.
a. draw the missing carbon and hydrogen atoms of this molecule on your piece of paper.

What does x represent in the formula for the compound xcl4?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

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