Zirconium (Zr) has an average atomic mass of 91.22 amu and is made up of the isotopes Z90r, Z91r, Z92r, Z94r, and Z96r. The atom of which isotope has the greatest mass

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

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