A student mixes two solutions A and B. A is blue colored and B is yellow colored. The mixture produces has a green color. A thermometer shows no temperature changes. The student observers no other facts What answer best applies ? A. Physical Change
B. chemical change , exothermic
C. physical change , exothermic
D. physical change , endothermic

A

Explanation:

No temperature change was observed, hence the change is neither exothermic nor endothermic. Hence the answer is A.

the answer is a. co2, this would be colder than the : )

explanation:

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).