Answer: Water and Oxygen
Explanation: the piece of iron in the garden has come in contact with oxygen and water which are the two elements of rusting. During this process the piece of iron will give out electron to oxygen and becomes Fe3O2. We call that oxidation.
Answer:
537.68 torr.
Explanation:
- We can use the general law of ideal gas:<em> PV = nRT.</em>
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
- If n and V are constant, and have different values of P and T:
<em>(P₁T₂) = (P₂T₁).</em>
P₁ = 485 torr, T₁ = 40°C + 273 = 313 K,
P₂ = ??? torr, T₂ = 74°C + 273 = 347 K.
∴ P₂ = (P₁T₂)/(P₁) = (485 torr)(347 K)/(313 K) = 537.68 torr.
The answer to this question would be water.
The most abundant molecule inside a cell is water. The volume of the cell is greatly influenced by the amount of water that cell has. Water can move with facilitated diffusion or osmosis so maintaining the cell osmotic pressure can be important in keeping the cell water volume.
