Markthe letter A, B, C or D to indicate the correct answer to each of the following questions.

Question 9: Seldom _______ far enough north to disturb South Pacific shipping lanes.

A. Antarctic icebergs will move

B. will Antarctic icebergs move

C. will move Antarctic icebergs

D. move Antarctic icebergs will

Phản ứng nào dưới đây thuộc loại phản ứng oxi hóa – khử?

A. NaOH + HCl →NaCl + NaCl + H₂O

B. CaO + CO₂ →CaCO₃

C. AgNO₃ + HCl → AgCl + HNO₃

D. 2NO₂ + 2NaOH → NaNO₃ + NaNO₂ + H₂O