Amixture is different from a compound because each substance in a mixture
a. retains its own properties.
c. forms an ion.
b. changes its electric charge.
d. changes from a solid to a liquid.

The answer I s, "A". why? Because as long as you agitate a mixture two or more substances will still, each have their own chemical composition. A good example would be salt mixed with pepper and sand. Shake this mixture up and you still have salt, pepper, and sand.