indicates caution A background on a safety sign is used to identify a definite hazard; for a potential hazard. Select one: O a. Red; green Ob Blue, red O c. Yellow, blue O d. Red; yellow​

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

Calcium chloride +gold(1) oxide—>

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.