Answer:
A) 6.00 mol.
B) 0.375 L or 375 mL
C) 6.00 M
Explanation:
Hello,
A) In this case, from the definition of molarity, we compute the moles for the given volume and concentration:

B) In this case, from the stock solution, the required volume is:

C) In this case, we apply the following formula for dilution process:

Thus, solving for the final molarity, we obtain:

Regards.
Answer:
Covalent so it is C.
Explanation:
That is water bro.
H2O and water is covalent since they are shared and they are touching in the picture.
Electrons are being shared not transferred and covalent means they are being shared.
Hope this helps!
To determine the density, we use the following formula:

mass= 2.813 grams
volume= ?
we need to first calculate the volume before we can solve for the density. since the question states that the sample has a spherical shape, we can use the volume formula of spheres to find it.

radius (r)=

=

let's plug in the values
V=

we need to change the

to

using the following conversion
1 cm= 10 mm

now we can find the density.
density= 2.813 grams/ 0.268 cm=
10.5 g/cm3