Chemistry
State the two characteristics of a chemical change.
Matter
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Answer
Two characteristics of a chemical change are.
- It is is permanent change in which new substances are formed from the original substances.
- The properties of the new substances are entirely different from those of the original substances.
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Related Questions
What happens to a metal ball when it is heated? What does this show ?
Why does a candle become smaller on burning with time?
Look at the diagram given alongside and answer the questions that follow:
(a) Label A and B.
(b) What is the purpose of this experiment?
Given below is a crossword puzzle based on this lesson. Read the clues across and clues downwards and fill up the blank squares.
Across:
- Quantity of matter
- Solid changes directly into vapour
- Gas changes into liquid
Down:
- Occupies space and has mass
- Liquid is heated to change into vapour
- Solid changes into liquid.
