Question

Match these items with their correct definitions.

1 .
gas
most pure basic substances
2 .
elements
combined atoms are different
3 .
IUPAC
tiny particles of elements
4 .
compounds
measures gravitational pull
5 .
weight
no fixed shape or volume
6 .
Mendeleev
CO 2
7 .
atoms
chemist who developed the Periodic Table
8 .
carbon dioxide
authority which assigns names to elements

Answer 1

1. gas-no fixed shape or volume

2.elements- most pure basic substances

3.IUPAC- authority which assigns names to elements

4.compound-combined atoms are different

5.weight- measures gravitational pull

6.Mendeleev- chemist who developed the periodic table

7.Atoms- tiny particles of elements

8.Carbon Dioxide-CO 2