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2 years ago

Which of the following advances in food production were attributed to the green revolution of the 1960's and 1970's

Chemistry

2 answers:

ioda2 years ago

6 0

C improved irrigation systems

bulgar [2K]2 years ago

5 0

b.drought-resistant varieties of crop plant

just took the test and this was he answer

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Colin is helping the librarian return books

DedPeter [7]

Explanation:

You mean the librarian is helping colin return books

6 0

1 year ago

A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the f

deff fn [24]

Explanation:

Entropy means the amount of randomness present within the molecules of the body of a substance.

Relation between entropy and microstate is as follows.

S = $K_{b} \times ln \Omega$

where, S = entropy

$K_{b}$ = Boltzmann constant

$\Omega$ = number of microstates

This equation only holds good when the system is neither losing or gaining energy. And, in the given situation we assume that the system is neither gaining or losing energy.

Also, let us assume that $\Omega$ = 1, and $\Omega'$ = 0.833

Therefore, change in entropy will be calculated as follows.

$\Delta S = K_{b} \times ln \Omega' - K_{b} \times ln \Omega$

= $1.38 \times 10^{-23} \times ln(0.833) - 1.38 \times 10^{-23} \times \times ln(1)$

= $1.38 \times 10^{-23} \times (-0.182)$

= $-0.251 \times 10^{-23}$

or, = $-2.51 \times 10^{-24}$

Thus, we can conclude that the entropy change for a particle in the given system is $-2.51 \times 10^{-24}$ J/K particle.

8 0

2 years ago

stoichometry in chemistry!! please someone help i'm begging you, if i fail this then i fail chemistry

Anna71 [15]

Answer:

You can find in the given attachemnet

4 0

1 year ago

Which effect does an ocean have on the climate?

kari74 [83]

Answer:

A. ocean winds can carry moisture with them and can bring rain and fog over inland areas

Explanation:

It's "A. ocean winds can carry moisture with them and can bring rain and fog over inland areas' for K12 (OHVA to be exact)

4 0

2 years ago

Read 2 more answers

2NH.

liq [111]

Answer:

N=2

H=6

Explanation:

1.Balance a chemical equation in terms of moles.

2.Use the balanced equation to construct conversion factors in terms of moles.

3.Calculate moles of one substance from moles of another substance using a balanced chemical equation.

The law of conservation of matter says that matter cannot be created or destroyed. In chemical equations, the number of atoms of each element in the reactants must be the same as the number of atoms of each element in the products.

(P.s it could also be where you have to solve it in which you have to simplify it first then solve it.) like adding them all up.

Hope this is the answer. :)

6 0

2 years ago