Refer to the solubility curve graph. Which compound is the least soluble at 20°C?

A
KClO3

B
KI

C
NaNO3

D
Ce2(SO4)3

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false