Very Short answer questions
A solution containing 0.7665gm of HCI is mixed with 2. 574 gm of
decahydrated sodium carbonate crystals. Find the not number of
moles of excess reagent left over unreacted.​

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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2b2t

explanation:

2b2t