Answer:
Volcanoes form when magma from earth's upper mantle moves its way up to the surface. When the magma is all the way up the surface, it erupts and makes lava while at the same time, ash deposits. Once the volcano continues to erupt even more it starts getting bigger and bigger.
Explanation:
<span>The osmotic pressure is found to depend on the concentration of the solution and it would affect it directly.</span>
Answer: Group 16 elements form ions with a 2 - charge.
Explanation: Therefore each of these elements would gain one electron and become an anion with 1 - charge.
Answer:
39 × 10²³
Explanation:
142.5/22 = 6.47 mole
Then n = n of molecules / nA = 39.01 × 10²³