Question

6. Which of the following statements is most correct with
regard to a chemical change?
O A new substance may or may not be formed
O One or more new substances are always formed.
O Colour change takes place
O A gas is formed​

Answer 1

Answer:

Second statement is correct

One or more new substances are always formed

Answer 2

One or more new substances are always formed.

Chemical adjustments are everlasting adjustments wherein a brand new substance is fashioned. Physical adjustments are brief adjustments wherein no new substance is fashioned.

Correct option−Option B is correct.

Explanation−Changes wherein new materials are fashioned are known as chemical adjustments. It is irreversible.

Example;2H2​+O2​→2H2​O

Here, hydrogen and oxygen integrate to shape new substance water.A extrade wherein one or extra new materials are fashioned is known as a chemical extrade. A chemical extrade is likewise known as a chemical reaction.

In a chemical extrade, new materials are fashioned. In order for this to occur, the chemical bonds of the materials break, and the atoms that compose them separate and rearrange themselves into new materials with new chemical bonds. When this technique occurs, we name it a chemical reaction.

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