The number 80 in the name bromine-80 represents

a. the mass number.

b. the sum of protons and electrons.

c. the atomic number.

d. none of the above.

In which reaction is a precipitation occurring

What is the order of the respiratory system?

What subatomic particles in an atom are equal in an uncharged atom?

If you're standing on the beach looking out at the ocean as far as you can see, where's your zenith? a) on the local horizon B) straight over your head C) above the local horizon D) behind you as far as you can see

Joe and Angie are studying how listening to music affects grades. Joe listened to music while he studied while Angie studied in silence. After two weeks, they took the same math test and Joe scored higher than Angie.

What happened to the rate of the forward reaction and the rate of the reverse reaction as time progresses. Describe the rates when the reacion reaches equilibrum.

During which phase of the moon do neap tides occur? O full O gibbous O new quarter

What is called what a scientist personal opinion affects the way experimental results are reported? A. Bias B. Classifying C. Inductive reasoning D. Procedure

Coffee is decaffeinated industrially using supercritical (sc) CO2. One advantage to using scCO2 is that the polarity of the supercritical fluid can be tuned by varying temperature, pressure and cosolvent additives.

The relationship between pressure and temperature of a gas, when volume and moles of a gas are held constant, is: P*T = k. TRUE FALSE