Answer:
Are you asking for all of them? Some of the basic ones are alluminum and carbon.
From the equestion:
M=conc÷molarmass
where:conc=mass÷volume (15.00g÷(750.0mL×0.001L) ) =(0.75L)
now:15.00g÷0.75dm cube =20g/DM
Then:M=conc÷molarmass=20g/dm÷40g/mol=0.5M
Therefore the Molarity of naoh is 0.5M
C-13 or Carbon-13 is an isotope of carbon that has a relative abundance of 1.109%. The other isotopes of carbon are C-12 and C-14. We use this percentage to multiply to the total atoms of carbon. The solution is as follows:
2.1×10⁴ atoms * 1.109/100 = 232.89 atoms of C-13
Answer:
The answer to your question is: c
Explanation:
A descomposition reaction is a chemical reaction in which the only one reactant yields two or more products.
a) HCl + NaHCO3 → H2O + CO2 + NaCl
This is not a descomposition reaction because there are two reactants not one, this option is incorrect.
b) 2Na + Cl2 → 2NaCl
THis option is also incorrect because there are two reactants in descompositin reaction there is only one reactant.
c) 2HgO → 2Hg + O2
There are only one reactant that yields 2 products, this is a descomposition reaction.
d) AgNO3 + NaCl → AgCl + NaNO3
THis is not a descomposition reaction because there are two reactants.
