*Which of the following observations can detect chemical changes?*
1️⃣ Change in colour.
2️⃣ Change in taste.
3️⃣ Release of gas.
4️⃣ All the above.
Answers
Answer:
Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change
Answer:
2) Change in colour. 3) Release of gas.
Explanation:
Given,
Which of the following observations can detect chemical changes.
To detect,
which undergoes chemical changes in above given observation?
Solution:
A chemical change happens when the molecular identity of matter changes to an entirely new form. This change is irreversible; that is, there's no going back once a chemical change occurs.
Signs and Evidence,
There are a variety of signs that may provide clues that a chemical change has entered the building. Let's look at the following five signs:
- Odor
- Energy change
- Gas bubbles (evolution of a gas)
- Precipitate formation
- Color change