Calculate how much sample remains of a 200 g sample of Polonium-210 after 552 days (Polonium-210 has a half-life of 138 days).

Iwill give extra points to who gets this right

An object displaces 652 ml of water. the volume of the object is: 0.652 cm³ 6.52 cm³ 65.2 cm³ 652 cm³

1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt