How Many Moles of Aluminum Are Needed to Make 9

question 110

Multiple Choice

How many moles of aluminum are needed to make 9 moles of molecular hydrogen? Given the reaction:
2 Al + 6 HCl → 2 AlCl₃ + 3H₂

• A)2 moles
• B)3 moles
• C)4 moles
• D)6 moles
• E)none of the above

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Definitions:

Homologous Pairs

Pairs of chromosomes that have the same structure and gene sequence, matching one inherited from each parent.

Meiosis I

The first division in meiosis, during which homologous chromosomes are separated, resulting in two daughter cells with half the number of chromosomes of the original cell.

DNA Replication

The process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.

Sister Chromatid

One of two identical copies of a chromosome that are connected by a common centromere.