Explanation:
Solution 86P
Here, we have to determine the amount of sodium hydroxide required to precipitate all of the Mg.
Mg2+(aq) +2 NaOH(aq) ------> Mg(OH)2 (s) + 2Na+(aq)
Therefore
Molar mass of NaOH =39.997 g/mol
Molar mass of Mg =24.305 g/mol
Thus,the conversion factors
g NaOH(aq)= mol NaOH(aq) = g Mg = mol Mg
Thus the amount of sodium hydroxide required
= 88.4 mg of Mg x x x x...
The answer is a because the other ones don’t make sense
Answer:
Because burning a non-renewable resource that is not good for the atmosphere, will always cause some kind of chemical reaction to happen.
Examples of these reactions are...
- Acid rain, a very dangerous disaster.
- Global warming.
- Carbon increases.
Answer:
D)3
Explanation:
The trigonal planar atoms are: N and two Carbons (of COOH)
Three peaks corresponding to Cl+2 will be recorded. The peaks are for isotope 35, both 35 and 37 and for isotope 37. Mass spectrometer has the ability to detect and separate isotopes, even those differing by a single atomic mass unit. When chlorine isotopes are analysed by mass spectrometer, either peak M or M+2 can be obtained. The intensity ratio in the isotope pattern depends on the natural abundance of the isotopes.
