Answer: natural gas, air, carbon based fossil fuel, coal. They provide a living space for all humans and animals. Help our environment.
Explanation:
Yes, there is no increase in volume because the space present between the atoms of water is occupied by the sugar.
Answer:
We're asked to find the molar concentration of the
NaCl
solution given some titration data.
Let's first write the chemical equation for this reaction:
NaOH
(
a
q
)
+
HCl
(
a
q
)
→
NaCl
(
a
q
)
+
H
2
O
(
l
)
Using the molarity equation, we can find the number of moles of
HCl
that reacted:
molarity
=
mol solute
L soln
mol solute
=
(
molarity
)
(
L soln
)
mol HCl
=
(
0.105
mol
L
)
(
0.0250
L
)
=
0.00263
mol HCl
(volume converted to liters)
Now, using the coefficients of the chemical reaction, we can determine the number of moles of
NaOH
that reacted:
0.00263
mol HCl
(
1
l
mol NaOH
1
mol HCl
)
=
0.00263
mol NaOH
Lastly, we'll use the molarity equation (using given volume of
NaOH soln
) again to determine the molarity of the sodium hydroxide solution:
molarity
=
mol solute
L soln
M
NaOH
=
0.00263
l
mol
0.315
l
L
=
0.00833
M
(volume converted to liters)
It would have 17electron shells
hope that helps
Answer:
Explanation:
1st) one are homogenous because the have the same kind of force 9 London force ) all the hydrocarbons are nonpolar and have a London force between their molecules
so pentane dissolve in hexane (like dissolves like )
2nd ) CBr4 has a tetrahedral shape its a nonpolar compound (London bond )
but the water is polar molecules has a ( hydrogen bond ) its molecular shape (bent shape) . Both do not dissolve in each other because they have a different kinds of bond so they are <u>not a homogenous solution </u>.
3rd) its a homogenous because the water can dissolve the ionic bonds between the Li ( cation ) and (NO3 -1 anion ).
4th ) here we can say alcohol can dissolve in a little amount why ?
- pentane has a London force bond
- Alcohol has two different parts first part has OH making hydrogen bond which cant dissolve in the pentane different kinds of bonds ,and the other part -CH3 has a London force bond that can dissolves easily in the pentane
- so one part dissolves but the other part can't dissolve so the two compound are slightly dissolves in each other that which mean its <u>not a homogenous solution </u>
