the first reaction bubbled because a ______ was formed.\na gas\nb liquid\nc solid\nthe yellow color seen in…

the first reaction bubbled because a ______ was formed.\na gas\nb liquid\nc solid\nthe yellow color seen in the second reaction was due to the presence of a solid known as a ______.\na substrate\nb precipitate\nchanges in color and temperature indicate that a ______ reaction has taken place.\na chemical\nb physical

the first reaction bubbled because a ______ was formed.\na gas\nb liquid\nc solid\nthe yellow color seen in the second reaction was due to the presence of a solid known as a ______.\na substrate\nb precipitate\nchanges in color and temperature indicate that a ______ reaction has taken place.\na chemical\nb physical

Answer

Brief Explanations:

  1. Bubbling in a reaction is often due to the formation of gas.
  2. A solid formed in a solution - phase reaction is called a precipitate, which can cause color changes.
  3. Changes in color and temperature are characteristic signs of a chemical reaction, as they indicate the formation of new substances with different properties.

Answer:

  1. A. gas
  2. B. precipitate
  3. A. chemical