Characteristic Properties of Substances Flashcards
Which of the following can be classified as an intensive property?
Density.
Which of the following is a unique property of water?
When freezing, water molecules can form hydrogen bonds more easily.
Which of the following statements is true about hydrogen bonds?
They form between a partial positively charged region on one molecule and the partial negatively charged region on another molecule.
Which of the following substances will not dissolve in water?
Mg(OH)2
Which of the following characteristics applies to the bonds holding together nonpolar covalent molecules?
They occur when two atoms share a pair of electrons with each other.
Which of the following statements about osmosis is true?
Osmosis involves a selectively permeable membrane.
Which of the following can be classified as an extensive property?
Entropy.
If an intensive property is independent of the material being measured, which of the following is an example of an intensive property?
Boiling point.
Which of the following statements about diffusion is true?
Gas exchange in tissues is an example of diffusion.
Diffusion is a passive process.
Osmosis is an example of diffusion.
Diffusion is the net movement of molecules or atoms from a region of higher concentration to a region of lower concentration.
Which of the following is a unique property of water?
Its ability to dissolve so many solutes that it is called the “universal solvent”.
At what temperature does water have its maximum density?
4 degrees Celsius.
Which of the following substances will dissolve in water?
NaCl
Which of the following statements about osmosis is false?
Osmosis moves water molecules mostly through the phospholipid heads of the cell membrane.
Which of the following statements about diffusion is false?
Diffusion does not use energy.
What type of energy is stored in ATP?
Potential energy.
