How many molecules are in 4 moles of H20? A. 2.408 x 10^24 B. 2.408 x 10^23
C. 6.02 x 10^24
D. 7.224 x 10^24​

A. 2.408 × 10²⁴

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Atomic Structure

Stoichiometry

Step 1: Define

[Given] 4 moles H₂O

[Solve] molecules H₂O

Step 2: Identify Conversions

Avogadro's Number

Step 3: Convert

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