Mixtures can occur between all phases of matter. give an example for each of the following mixtures:
1. gas/gas
2. gas/liquid
3. liquid/liquid
4. solid/liquid
5. solid/solid

The brightest star in the night sky in the northern hemisphere is sirius. its distance from earth is estimated to be 8.7 light years. a light year is the distance light travels in one year. light travels at a speed of 3.00 × 108 m/s. calculate the distance from earth to sirius in miles. (1 mi = 5280 ft) g