根据要求回答下列各题: (Ⅰ)现有①Na2O ②SO3 ③铁 ④蔗糖 ⑤冰醋酸(纯醋酸晶体) ⑥KNO3晶体 ⑦氢氧化钠溶液等物质,请填空回答(填序号): 以上物质在常温下(1)能导电的是 ▲ ;(2)属于非电解质的是 ▲ ; (3)属于电解质的是 ▲ ;(4)属于弱电解质的是 ▲ 。 (Ⅲ)(Ⅱ)某有机混合物4.6 g完全燃烧,将燃烧后的混合物通入过量的澄清石灰水,石灰水共增重14.2 g,经过滤得到20g沉淀.该有机样品
读短文,填表格。
I'm Jack. I usually get up at 6: 30. Then I eat breakfast at 7: 00. I do morning exercises at 8: 00. I usually eat lunch at 11: 50. I usually eat dinner at 7: 00 in the evening. At 9: 15, I go to bed.
Jack's Timetable
get up 6: 30eat breakfast 1______________2______________ 3______________4______________ 5______________6______________ 7______________8______________ 9______________