Suppose that the cuvette into which the 0.600 M solution was added had some water droplets inside it before the solution was added to it. (i) If this situation had occurred, the measured absorbance of the CuSO4 solution in that particular cuvette would be

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

a polar bond is formed when electrons are shared unevenly between atoms

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chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.