Answer: Vacuole
Explanation:
Vacuole is a cell organelle that is lined with membrane and filled with cell sap that serves as a storehouse for many substances especially water. Hence, the cell membrane helps to remove excess water in cells
During the day the sun burns up and the sand soaks up the heat causing a oven effect.
<span>While at night the wind will blow, and the sun is gone so the effect is like garages in the night. A great way to Yahoo or google search is "Desert climate and effects."</span>
Answer:
The correct answer is A. 3O₂ + 2Al → 2AlO₃
Law of conservation of mass states that mass can nether be created nor destroyed in a closed system or chemical reaction i.e. the total mass of the matter always remains the same throughout the chemical or physical change.
For example, in the given reaction 3O₂ + 2Al → 2AlO₃ the total mass of the reactants is equal to the total mass of the product.
Mass of oxygen = 16 x 3 = 48 AMU
Mass of aluminium = 2 x 27 = 54 AMU
Total molecular mass of the reactants = 102 AMU
Total molecular mass of the product = 2 x 27 + 6 x 8 = 102 AMU.
Hence, the total mass of the matter remains the same.
