8. (04.03 LC) Which of the following steps can be used to identify a double replacement reaction? (5 points)
Check if the ions of two compounds exchange places.
ООО
Check whether the products are salt and water.
Check if one element replaces another element in a compound.
Check whether the reactants are an acid and a base.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates