bạn biết bài nay k giải dùm mình di.

đổ 100g dd HBr 8,1% vao 50 ml dd NaOH 1M. nhúng giấy quỳ tím vao dd duoc thì quỳ tính chuyên sang mau gì, vì sao?

* Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

The word crisis is too often used to exaggerate the predicament of a club experiencing hard times.

A. situation

B. dilemma

C. shame

D. embarrassment