Which is a valid reason why total dissolved solids (TDS) cannot be accurately calculated by conductivity alone? Global warming has significantly increased the conductivity of water.

Big blobs of algae do not conduct electricity.

Fish poop changes the conductivity.

Ionic compounds may behave differently based on ion characteristics (e. g. charge or size).

Some dissolved solids may be nonelectrolytes.

The correct option is the last option (Some dissolved solids may be nonelectrolytes)

Explanation:

Total dissolved solids (TDS) cannot be calculated by conductivity alone because conductivity involves ionic charges and there are solids that dissolve in water but do not carry ionic charges (and thus form non-electrolytes). Examples include sucrose (common sugar) and glucose. These two solids will dissolve in water but would not form ions that will carry ionic charges which are responsible for conductivity. Thus, if TDS only depends solely on conductivity, then a solution that contains dissolved sucrose will be wrongly accounted for as the sucrose will be omitted from the dissolved substances.

d is

a is the answer

explanation:

which statement about trans-fatty acids is false?

a. the conversion of cis-fatty acids to trans-fatty acids is inhibited by the presence of antioxidants.

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