Amalgams

A. 65% silver, 32% tin and 3% copper
B. 49% silver, 32% tin and 19% cooper
C. 65% silver, 29% tin and 5-6% copper
D. None of the above

A. At the margin of the restoration
B. In the centre of the restoration
C. In the deepest part of the restoration
D. None of the above

A. Lysing amalgam alloy
B. Mixing of amalgam alloy and mercury
C. Removal of excess of mercury
D. None of the above