Answer:
It starts at zero, and travels to the other side. Once it reaches the other fixed point, the wave travels back to the starting poing, this is represented as the lighter line. Notice the point right in the middle at p. This point is called a node.
Explanation:
Answer:
FeCl3
Explanation:
We'll begin by writing the balanced equation for the reaction. This is shown below:
4FeCl3 + 3O2 —> 2Fe2O3 + 6Cl2
Thus, the limiting reactant can be obtained as follow:
From the balanced equation above,
4 moles of FeCl3 reacted with 3 moles of O2.
Therefore, 8 moles of FeCl3 will react with = (8 x 3)/4 = 6 moles of O2.
From the calculation made above, we can see that a lesser amount of O2 is needed to react completely with 8 moles of FeCl3. Therefore, FeCl3 is the limiting reactant.
Answer:
mixture
Explanation:
Chromatography separates components of a material based on their difference in polarity. Since the chromatography experiment resulted in more than one mark appearing, there must be more than one component in the material.
Upon standing for 24 hours, the liquid ink separates into its different components based on their differing properties, such as density or solubility. Since a pure substance is homogeneous and has the same properties throughout, the ink cannot be a pure substance.
Following the atomic mass of each of these atoms, we have 1 Fe atom with 56 amu, 3 N atoms with 14 each, and 9 O atoms with atomic mass 16. Adding these together, we get 56 + 42 + 144 = 144 + 98 = 242. Your answer is (4) 242 g/mol