Answer:
Option 3 is correct.
The atomic nucleus of each element has a unique number of protons. Therefore, the energy of the electron layers of the atoms of each element is unique.
If we have the energy released from each electron transfer between the layers of the atom, we can identify the element.
Answer:
The answer to your question is: 58.4 g of NaCl
Explanation:
Data
Volume = 200 ml = 0.2 l
Concentration = 5M
MW = 58.4 g
mass NaCl = ?
Formula
Molarity = (# of moles ) / volume
# of moles = Molarity x volume
# of moles = 5 x 0.2
# of moles = 1
58.4 g ---------------------- 1 mol
x --------------------- 1 mol
x = (1 x 58.4) / 1
x = 58.4 g of NaCl
Answer:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles N2, or 28.0134 grams.
Explanation:
:)
<span>The correct answer is 'freezing point depression'. Colligative properties depend on the concentration of molecules of a solute. Examples of other colligative properties are boiling point elevation or vapour pressure lowering. The salt causes ice on the side walk to melt because it lowers the freezing point. </span>
Answer: All of these answers are sorrect
ExplanationA scientist does all of these things while operforming a experiment
