*Question*
Q: Salts of weak acids or bases can affect the acidity or what of their aqueous solution? Choices: - atomicity - compound - ductility - basicity A:
**Answer**
basicity

*Question*
Q: Protein digestion begins in the stomach as pepsinogen in gastric juice is converted to pepsin, the enzyme that hydrolyzes this? Choices: - disulfide bridges - hydrogen bonds - ionic bonds - peptide bonds A:
**Answer**
peptide bonds

*Question*
Q: What type of amplitudes and wavelengths avoid detection in deep water? Choices: - high and long - high and wide - low and wide - low and long A:
**Answer**
low and long

*Question*
Q: Exemplified by cesium, which ignites spontaneously in air, pure elements with a high metallic character tend to be very what? Choices: - radiactive - inactive - proactive - reactive A:
**Answer**
reactive