Answer:
Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated. ... As a result, the particles take up more volume.
Answer:
The main purpose of the expedition was to conduct a hydrographic survey of the coasts of the southern part of South America.
Answer:
D 12
Explanation:
Assume that you have one formula unit of Na₂H₃IO₆. Then, you have
2 atoms Na
3 atoms H
1 atom I
<u>6 atoms</u> <u>O</u>
12 atoms TOTAL
Coefficient numbers are always in front of the element and show how much of the element there is
