1 mole of Zn= 65.38 g This is the exact number but you can use 65 as well
1 x 10^-3 mole x 65.38 = 6.538 x 10^-2
The strong Base with a pH of 12 is reduced by 4 units upon being added with solution Y. If you added a strong acid to the strong base, all ions are present in the solution, yes? So every OH- is neutralised by every H+ for example, meaning the resultant pH should be 7. The resultant pH is only 8 however, so solution Y must be a <em>weak acid </em>only!
Answer:
mass of water=29.2 g water
2 mol of water
1 mol of water=18.0 water (molar mass)
1 mol O₂=6.02 x 10²³ molescules O₂
29.2 *x* 6.02x10²³
=4.88 x 10²³
Answer:
the correct answer would be B(diffusion). please mark brainliest
Explanation : diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration. the smell simply moves around the room. hopefully this helps
Answer:
Ocean currents!!
Explanation:
The Oceans of the earth transfer heat from one location to another via massive ocean currents. These currents are like river flowing across the vastness of Earth, bringing warm water from the equator up towards higher latitudes, and cooler water down towards the equator.