The primary difference between a periodic and perpetual inventory system is that a periodic system

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Explanation:

The primary difference between the periodic and perpetual inventory system is that the perpetual system keeps track of things from the start to finish continuously while the periodic system divides it into periods and keeps the records at the end of every set period of time.

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periodic system records these transactions only at the end of the period

Explanation:

A perpetual inventory system is usually described as a method of inventory management that records real-time transactions of received or sold stock by or through the use of technology.

A periodic inventory system which is also known as the periodic inventory method is a method in which the amount of inventory is determined at the end of each accounting period or in specified periods. It is always done through a physical count for each period.

It should be understood that , the perpetual inventory system is generally considered a more efficient method, because it  keeps continual track of inventory balances through the use of technology, while the the periodic system relies upon an occasional physical count of the inventory to determine the ending inventory balance and the cost of goods sold

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

the  different  of  these  two  are  that  they  differently  handle  their  team.

an  expressive  leader  focuses  on  the  task  at  hand  and  make  sures  that  their  goal  is  achieved.  they  accurately  finish  the  task.  an  instrumental  leader  on  the  other  hand  works  on  the  unity  of  the  group,  they  care  more  about  their  employees.  all  the  while  creating  a  good  environment.