Answer:
3 - a heterogeneous mixture
4- Sweet tea is an homogeneous mixture
Answer:
The dissociation of copper sulfate into ions is an exothermic chemical reaction that releases heat into the surroundings.
Explanation:
Some of the potential energy stored in the solid sample of anhydrous copper sulfate is released as heat as the sample dissolves and dissociates into ions in the water. This is due to the large lattice energy of the crystalline copper sulfate.
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C) Tc-99 is a radioactive isotope also known as radioisoptope.
The answer is D hopefully it is correct
Answer:
B. The ocean floor is featureless.
Explanation:
