在25 ℃时，浓度均为0.2 mol/L的NaHCO₃和Na ₂CO₃溶液中，下列判断正确的是

A．c(OH^－)前者小于后者

B．与同浓度的盐酸反应时的反应速率前者大于后者

C．分别加入1L的0.2 mol/L的HNO₃后一定产生4.48LCO₂

D．溶液中阳离子浓度相同

Clare, Dan and Eve formed a partnership 10 years ago, although Clare was a sleeping partner and never had anything to do with running the business. Last year Dan retired from the partnership. Eve has subsequently entered into two large contracts. The first one was with a longstanding customer Greg, who had dealt with the partnership for some five years. The second contract was with a new customer Hugh. Both believed that Dan was still a partner in the business. Both contracts have gone badly wrong leaving the partnership owing ￡50,000 to both Greg and Hugh. Unfortunately the business assets will only cover the first ￡50,000 of the debt.Required:Explain the potential liabilities of Clare, Dan, and Eve for the partnership debts. (10 marks)