The swelling/shrinking tendency of some silicate clay minerals is due primarily to _____.

a. the high Mg2+ contents in the octahedral layers
b. the movement of water molecules in and out of the interlayers of the crystal
c. the presence of cations attracted by the negative charges on the internal surfaces
d. substitution of Si4+ in the tetrahedral layers


Ans: b. the movement of water molecules in and out of the interlayers of the crystal

Trades & Technology

You might also like to view...

Is this what you predicted?

What will be an ideal response?

Trades & Technology

What does federal law mandate accompany any potentially hazardous substance?

A. Skull and crossbones logo B. MSDS C. Manufacturer responsibility waiver D. Antidote for exposure

Trades & Technology

Used oil filters should be crushed or drained for 12 hours prior to putting them into a trash container.

Answer the following statement true (T) or false (F)

Trades & Technology

Which of the following grade designations represents the lowest quality plywood veneer?

a) A b) B c) D d) N

Trades & Technology