Answer:
A
Explanation:
The Phase Diagram of Carbon Dioxide
At 1 atm, therefore, solid CO2 sublimes directly to the vapor while maintaining a temperature of −78.5°C, the normal sublimation temperature. Solid CO2 is generally known as dry ice because it is a cold solid with no liquid phase observed when it is warmed.
Moles Ag = 68.3 g / 107.868 g/mol=0.633
A cookie made from flour, eggs, sugar, butter, and chocolate chips is an example of a heterogeneous mixture.
Also, mixing the sugar flavoring in water, since you're mixing two different states of matter.
Arsenic
Arsenic has an atomic mass of 74.92, is a well known poison, and a metalloid.