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Calculate the oxidation number of the chlorine in perchloric acid,HClO4,a strong oxidizing agent.
Uncertified Check
is a check that has not been verified or guaranteed by the bank upon which it is drawn, making its acceptance based on the account holder's standing and available funds.
Six Months Old
Describes something, such as a product, document, or animal, that has existed or has been in use for six months.
Point-of-Sale Systems
Hardware and software systems used at retail and hospitality businesses to process sales transactions.
Charge Account
A type of credit account that requires the full balance to be paid at the end of each billing cycle.
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