Which of the following would occur if a zinc containing amalgam is contaminated with saliva during condensing?
1. No change in compressive strength but lower tensile strength.
2. Increased expansion.
3. Reduced flow or creep.
4. Increased surface pitting.

All of the above.

(4) only

(1) and (3)

(1) (2) (3)

(2) and (4)