What material would make the most efficient hot pack? ●Lithium Chloride
●Sodium Chloride
●Sodium Hydroxide
●Potassium Chloride​

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.