Answer:
The answer is c,F has a smaller radius than F− because F− has an additional energy shell.
Explanation:
if correct mark brainliest
First find the number of moles of KSCN is in 4.40g of KSCN
1. Number of moles = mass given (4.40g) / molecular weight(MW) (KSCN)
- to calculate MW, look for each element in the periodic table and add their atomic weight
2. Convert 200mL to liters
3. Concentration = number of moles/ volume in liters from (#2)
Answer:
24 moles
Explanation:
given data
= 48 grams
to find out
how many moles of
will be produced
solution
we know that Stoichiometry is here as
......................1
so we get here mole of solute
that is express as
mole =
..........................2
put here value for
mole =
mole of
= 24 mole
and
we can say that here as per equation 1 that one mole of
is go with one mole of
so here
24 mole is go with 24 moles mole of
so we can say
will be produced 24 moles
Answer:- Yes, strontum bromide and potassium sulfate gives a precipitate of strontium sulfate.
Explanations:- As per the solubility rules, all compounds of alkali metals are soluble.
Sulfate of most of the alkaline earth metals like Ca, Ba and Sr are insoluble.
A double displacement reaction takes place when strontium bromide and potassium sulfate are mixed and a precipitate of strontium sulfate is formed:

Note: (aq) stands for aqueous and (s) stands for solid and here it's precipitate.