2008-12-4 17:38
京•都
f.3 science
有冇可以解釋比我聽下面個d野有咩用或耆係點解呀???
最好有埋example啦
1. anhydros cobalt chloride paper
2. flbours
3. cellulose
4. hydrogencarbonate
[[i] 本帖最後由 恨你﹏ 於 2009-7-4 16:53 編輯 [/i]]
2008-12-4 23:05
magiyafeimo
1. anhydros cobalt chloride paper
叫做氯化鈷試紙，試紙一種，試下有冇水份
2. flbours
纖維，蔬菜裡可以找到纖維
3. Cellulose
纖維素，組成纖維既物質
4. hydrogencarbonate
碳水化合物，用黎釋放能量俾人類同動植物
2008-12-7 01:25
昌昌
hydrogencarbonate = HCO3- (anion)
usually match with Na+
form NaCO3
a common indicator used in biology (detecting concentration of carbon dioxide)
碳水化合物should be carbohydrate
2008-12-7 03:26
magiyafeimo
你說得對，4. hydrogencarbonate我睇成carbohydrate