Rault's law: the vapor pressure of a non-volatile solution is equal to the vapor pressure of the solvent times the molar fraction of the solvent (at the same temperature).
Pv water in the solution = X water * Pv of pure water
745 mmHg = Xw * 760 mmHg
Xw = 745/760 = 0.98
Molar fraction of the solute = 1 - 0.98 = 0.02
Answer: 0.02
F. None of the above (Four electrons are transferred).
2Mg → 2Mg^(2+) + <em>4e^(-)</em>
O_2 + 2H_2O + <em>4e^(-)</em> → 4OH^(-)
2Mg + O_2 + 2H_2O + <u>4e</u>^(-) → 2Mg^(2+) + 4OH^(-) + <u>4e</u>^(-)
2Mg + O_2 + 2H_2O → 2Mg^(2+) + 4OH^(-)
This is a <em>redox reaction</em> in which two atoms of Mg transfer <em>four electrons</em> to one molecule of O_2.
When an atom gains an electron it becomes a negatively charged ion. When an atom looses an electron it becomes positively charged because the number of positively charged protons.
Hope this helps
The sun? if not, then i have no idea. ahahaha
Answer: Photosynthesis and cellular respiration are related because the reactants for photosynthesis is the products (plus ATP) is cellular respiration. Also the products for cellular respiration is the reactants for cellular respiration.
Explanation:
