Skip to content
Philoid
Browse Saved
Back to chapter
Chemistry
3. Atoms and Molecules
Home · Class 9 · Chemistry · Ref. Book · 3. Atoms and Molecules
Prev
Next
Q10 of 38 Page 3

Define chemical change.

Chemical changes are changes that substances undergo when they become new or different substances.

More from this chapter

All 38 →
8 Write balanced chemical equations for the following reactions. 9 State the characteristics of a physical change. 1

If one mole of carbon atoms weights 12 grams, what is the mass (in grams) of 1 atom of carbon?

2

How many atoms are present in one molecule of aluminium sulphate?

Questions · 38
3. Atoms and Molecules
1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved