Label A-F based on the table using C for
concentrated and D for dilute.
acid /
base
molarity
concentrated /
dilute
12 M
HCI
0.5
M
0.01
M
6.0 M
B
c
NaOH
L
0.05 M
H2SO4
10 M

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

Which of the following reactions represents an exothermic reaction? nh3(g) + 12.0 kcal ½n2(g) + 3/2 h2(g) ch4 + 2o2 co2 + 2h2o + 212,800 cal c + 2s cs2, h = 27,550 cal c(graphite) c(diamond), h = 0.45 kcal 2h2o 2h2 + o2, h = +58 kcal

Place the following substances in order of ph from lowest ph to highest. a. neutral compounds, bases, acids b. acids, neutral compounds, bases c. bases, acids, neutral compounds d. bases, neutral compounds, acids