Step 9: Measuring the Volume of Air Near 100°C Use tongs to put the beaker (with tube and
thermometer) on the hot plate.
1600
1500
600 ml
1400
1300
200
100
LO
SI
Temperature of gas:
°C
Height of the column of gas.
cm DONE

it means there are 3 atoms of oxygen

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.