calculate the percent composition (by mass) of the following hydrocarbon

(Part A)-A hydrocarbon is a compound that contains mostly carbon and hydrogen. calculate the percent composition (by mass) of the following hydrocarbon: C10 H 22. Enter the percentages of carbon and hydrogen numerically to four significant figures, separated by commas. Carbon,hydrogen———%(Part B)- A certain metal hydroxide, M(OH)2 contains oxygen by mass. What is the identity of the metal M? Enter full name of metal. Molar mass=————–g/mol

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