Answer:
A. 11
Explanation:
atoms are made of three types of sub atomic particles - protons, neutrons and electrons
Protons are positively charged, electrons are negatively charged and neutrons are neutral.
Protons and neutrons are located inside the nucleus and electrons orbit around the nucleus in energy shells.
Atoms make up an element and atoms are neutral charged with an equal number of protons and electrons. Neutral atom of sodium would therefore have an equal number of positive charges and negative charges.
Since Na has 11 protons, for it to be neutral it would have 11 electrons
Due to we have total number of 6 carbons and one of them is the carboxylic group and we need to draw 2 methyl groups on the same carbon so the longest chain must be 4 carbons + 2 methyl branches and also these branches must be in carbon two and carbon three as follow:
Solution :
Compound Ksp
FeS
Ksp of and both compounds dissociate the same way. Hence is more soluble than
is less soluble than
It is not possible to determine CD - is more or less soluble than as though they have a different Ksp values their molecular dissociation is also different and they may have a close solubility values.
can be directly compared with PbS,
100
1-s s 2s
Ksp =
Hence they can be directly compared by Ksp values, smaller the Ksp, smaller the solubility.
For Silver Chloride
1 0 0
1 - s s s
Ksp
Hence, they can be directly compared by Ksp values, smaller the Ksp, smaller the solubility.
A beaker and a microscope