Fill in the blanks:

(a) A new substance is always formed in a ______ change.

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Solution

A new substance is always formed in a $chemical - -------- -$ change. Chemical changes are generally permanent changes.

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Question 15

Fill in the blanks in the following statements using the words given in the box

(a) Making sugar solution is a …………………. change
(b) A physical change is generally ……………………..
(c) Grinding of wheat grain changes its size. It is a …………….. change.
(d) Iron benches kept in lawns and gardens get ……………… it is a …………….
(e) change because a new ……………… is formed

Q. Write one word for the following

1.	A change that can be reversed	.....................
2.	A change that cannot be reversed	.....................
3.	A change where no new substance is formed	.....................
4.	A change where a new substance is formed	.....................

Fill in the blanks :

(a) The process of a liquid changing into a solid is called_______________

(b) A change which alters the composition of a substance is known as a _______________ change

(d) The reaction in which energy is evolved is called_______________

Fill in the blanks with suitable word..

A ..................change is a change in which a new substance is formed whose properties are different from those of the original substances.

Fill in the blanks by selecting correct word/term given in the bracket.

Formation of a new substance or new substances is called ___ change. (physical/ chemical)

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Chemical Reactions

Standard VIII Chemistry

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Fill in the blanks: (a) A new substance is always formed in a ______ change.

A new substance is always formed in a chemical–––––––––– change. Chemical changes are generally permanent changes.

Fill in the blanks:

(a) A new substance is always formed in a ______ change.

A new substance is always formed in a $chemical - -------- -$ change. Chemical changes are generally permanent changes.