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Mrrafil [7]
4 years ago
9

Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive an

d reproduce?
a.
natural selection
b.
overproduction
c.
competition
d.
variation
Chemistry
1 answer:
dem82 [27]4 years ago
4 0
It's B. overproduction bestfriend
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It is desired to make 1.00 liter of 6.00 M nitric acid from concentrated 16.00 M HNO3.A) How many moles of nitric acid are in 1.
natima [27]

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:

n=M*V=1.00L*6.00mol/L=6.00mol

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

V=\frac{6.00mol}{16.00mol/L}=0.375L

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

M_1V_1=M_2V_2

Thus, solving for the final molarity, we obtain:

M_2=\frac{M_1V_1}{V_2}=\frac{16.00M*0.375L}{1.00L}\\  \\M_2=6.00M

Regards.

5 0
3 years ago
How many molecules of water will be produced if 52.6 g of methane are burned?
liraira [26]
B there thanksgiving
7 0
4 years ago
Pleaseee helppp ASAPP<br> will mark brainliest!! :)
Artyom0805 [142]

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!

5 0
3 years ago
a spherical sample has a mass of 2.813g. it has a diameter of 8.0mm. what is the sphere made of (determined by its density as g/
blondinia [14]
To determine the density, we use the following formula:

density= \frac{mass}{volume}

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.

Sphere_{volume}= \frac{4}{3} \pi r^{3}

radius (r)= \frac{diameter}{2}= \frac{8.0 mm}{2} = 4.0 mm

let's plug in the values

V= \frac{4}{3} \pi 4^{3} = 268 mm^3

we need to change the mm^3 to cm^3 using the following conversion

1 cm= 10 mm
268 mm^3 (\frac{1 cm}{10 mm} )^3 = 0.268 cm^3

now we can find the density. 

density= 2.813 grams/ 0.268 cm= 10.5 g/cm3

5 0
3 years ago
Using distributive property solve 9×19​
Serga [27]

Answer:

9*(10+9)

(90+81)

(171) is the answer

8 0
3 years ago
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