Which of the following is an indicator that a chemical reaction occurred? A precipitate is formed The state of matter changed

Question

Which of the following is an indicator that a chemical reaction occurred?
A precipitate is formed
The state of matter changed
It was melted
The identity of the substance did not change​

in progress 0
Acacia 3 years 2021-09-04T08:36:51+00:00 2 Answers 2 views 0

Answers ( )

  1. thugiang
    0
    2021-09-04T08:37:59+00:00
    Reply

    Answer:

    A) A precipitate is formed

    Explanation:

    occurs in aqueous solution when two ions bond together to form an insoluble salt, which is known as the precipitate.

  2. Nho
    0
    2021-09-04T08:38:00+00:00
    Reply

    Answer:

    the state of matter changed

    Explanation:

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )