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Phoenix [80]
3 years ago
13

Among important crop plants, nitrogen-fixing root nodules are most commonly an attribute of A) corn. B) legumes. C) wheat. D) me

mbers of the potato family. E) cabbage and other members of the brassica family.
Chemistry
1 answer:
7nadin3 [17]3 years ago
3 0
<span>Among important crop plants, nitrogen-fixing root nodules are most commonly an attribute of
B) legumes</span>
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A sample of gas occupies a volume of 4.5 L at 20 Celsius. What volume will it occupy at -15 celsius, if the pressure remains con
nataly862011 [7]

Answer: 3.96L

Explanation:

PV = nRT

The way I like to do it, it's I get rid of whatever I do not need.

We have to do an equation for sure to make both sides equal and find our desired result.

The pressure is constant, so it would be constant in both sides, therefore, there is no point in using it.

The R is a constant used in both sides so there is no point on using it either.

We don't need to work with moles in this case, so let's forget about the moles.

Therefore we are left with only V (volume ) and T(Temperature)

Which would logically make this:

V1/T1 = V2/T2

OR

T1/V1 = T2/V2

Both of these would work, we always use whatever makes our calculations easier without complicating our lives with the algebra.

That should remind you of Charles' Law

Transform degrees into kelvins

20 + 273.15 = 293.15K

-15 + 273.15 = 258.15K

So, 4.5L/293.15K = V2/258.15K

V2 = (4.5L/293.15K) x 258.15K

V2 = 3.96L

8 0
3 years ago
Question 6
Gnom [1K]

Answer:

the answers 5, also did u finish ur ia yet,

if so you know what to do.

Explanation:

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Savanna regions developed during the Triassic period. T F
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Answer:

its true

Explanation:

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Does a substance that heats up quickly have a high or a low specific heat capacity
Oliga [24]
A low specific heat capacity
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Hydroelectric power plants capture the ______________ of falling water to generate electricity. The falling water turns a wheel
LiRa [457]

Answer:

1: energy

2: converts

Kinetic energy is either 3 or 4, those questions are really similar.

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2 years ago
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