Missed Q's

Question 1

Molar Concentration (M) is equal to what ?

Answer 1

M= mol/L

Question 2

Describe the general structure of a fatty acid chain

Answer 2

long alkyl chains which terminate in a carboxylic acid (-COOH) group

Question 3

What is alpha decay

Answer 3

the emission of an alpha particle by the nucleus of an atom (2 protons and 2 neutrons). Essentially the emission of a Helium atom.

Question 4

What is β+ decay

Answer 4

beta plus decay is when a proton converts into a neutron. β+ particle (positron) and a neutrino are emitted to preserve the charge. atom changes because # of Protons changes.

Question 5

What is β- decay

Answer 5

When a neutron is converted into a proton in the nucleus and a β− particle (electron) gets emitted to preserve charge.atom changes because # of Protons changes.

Question 6

What is gamma decay

Answer 6

emission of a high-energy photon (gamma ray) from an excited nucleus, # of protons does not change so atom does not change.

Question 7

Which part of an atom will change an atom into a different atom? protons, neutrons, or electrons?

Answer 7

changing number of protons (Z) (atomic number) will change the atom

Question 8

charged molecules tend to be nonpolar and hydrophobic or polar and hydrophilic?

Answer 8

Charged mlcls tend to be polar and hydrophilic.

Question 9

relationship between volume and pressure

Answer 9

Can be described by Boyle’s Law. for a fixed amount of gas at a constant temperature, the pressure and volume are inversely related.

important to understand for breathing.

Increasing lung volume lowers pressure (inhalation), and air flows in from the higher-pressure atmosphere to the lower-pressure lungs, filling them with oxygen.

and decreasing lung volume raises pressure (exhalation) The pressure in the lungs becomes higher than the atmospheric pressure, so air flows out from the higher pressure in the lungs to the lower pressure outside,