Please help me complete the following word equations:) also write the balanced equation, full ionic equation, and net ionic equation. Also include the states:) a) zinc nitrate + calcium sulphide—>

b) potassium + calcium chloride—>

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.