A student is given a sample of aluminum metal at her laboratory station. She is instructed to measure the mass of the sample and determines that it has a mass of
34.2 grams. Approximately how many moles of aluminum are in this student's sample?

if you mean hydrogen and oxygen then water is the product

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72