igcse化学题,这题为什么选c?
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igcse化学题,这题为什么选c?
3.A student is asked to measure the time taken for 4.00 g of magnesium carbonate to react
completely with 25.0 cm3 (an excess) of dilute hydrochloric acid.
Which pieces of apparatus does the student need?
A balance,clock,pipette
B balance,clock,thermometer
C balance,pipette,thermometer
D clock,pipette,thermometer
3.A student is asked to measure the time taken for 4.00 g of magnesium carbonate to react
completely with 25.0 cm3 (an excess) of dilute hydrochloric acid.
Which pieces of apparatus does the student need?
A balance,clock,pipette
B balance,clock,thermometer
C balance,pipette,thermometer
D clock,pipette,thermometer
![igcse化学题,这题为什么选c?](/uploads/image/z/18089192-56-2.jpg?t=igcse%E5%8C%96%E5%AD%A6%E9%A2%98%2C%E8%BF%99%E9%A2%98%E4%B8%BA%E4%BB%80%E4%B9%88%E9%80%89c%3F)
A,天平,秒表,移液管.
做碳酸镁和过量稀盐酸反应,应该要这些.天平称重,移液管移盐酸,秒表计时
做碳酸镁和过量稀盐酸反应,应该要这些.天平称重,移液管移盐酸,秒表计时