<h2>Answer:</h2>
The last statement is true. which is:
Mg is less reactive than Na because Mg has to lose one more electron than Na to complete its outermost shell.
<h3>Explanation:</h3>
Mg belongs to group II and Na belongs to group I.
Group II elements are less reactive than Group I elements. This is because it is more difficult to lose two electrons compared to losing just one electron.
Answer:
Two characteristics that make water a good choice for the recrystallization solvent for benzoic acid are
- Low solubility for benzoic acid at room temperature
- Less expensive
Explanation:
Characteristics of a Good Recrystallization Solvent:
- Cheap.
- High volatility.
- No reaction with substrate to be made pure.
- Insoluble impurities should not be dissolced by the olvent at all temperatures.
- At room temperature the solvent should have high solubility for soluble impurities well
- At room temperature the substance to be purified should be insoluble in the solvent.
As such water has both low solubility for benzoic acid at room temperature and water is cheap or readily available
Answer:
1. A. Thyroid Gland Function
B. detecting Blood Clots
C. Treating Cancer
2. An example would be how many are used as tracers for diagnostic purposes
3. Beneficial because it gives us ways to eleminate pests, by the sterile insect technique
Number three is kinda iffy a bit difficult to explain it may be explained better in your book.
Answer: There are 6.725 mols
Explanation:
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