Answer:
5
Explanation:
They have 5 in common but different x
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universal pH indicator is made up by the combination of several types of indicator.
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<span>The molecular formula for phosphoric acid is H3PO4 and has 97.994 grams per mol. In a sample of 658 grams of phosphoric acid, there are 6.71 mols of phosphoric acid.</span>
Elements in the same group have D. Same number of valence electrons.