Convection
because convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Na3PO4 + 3 KOH = 3 NaOH + K3PO4
Answer:
division of atoms are neither created nor destroyed therefore atoms can only be rearranged
Slow chemical change
It is a chemical change because the erosion is due to the chemical reaction between the acid and the in the rain and the calcium carbonate.
It is slow due to the concentration of acid is low.
Answer:
you need to send us the figure
Explanation: