Which of the following are producers?

.................. are microorganism used to improve soil fertility. plz ams it correct

slavikrds [6]

Answer:

Some bacteria like rhizobium and blue green algae are able to fix nitrogen gas from the atmosphere to enrich the soil with nitrogen compounds and increase its fertility. The nitrogen-fixing bacteria and blue green algae are called biological nitrogen fixers.

5 0

3 years ago

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What does a student need to know about double bonds and triple bonds when predicting molecular geometry of molecules?

zhuklara [117]

This problem is asking for an explanation of what we need to know about double and triple bonds to successfully predict molecular geometries in molecules. At the end, one comes to the conclusion that double and triple bonds contribute to the degree in which an atom is bonded and they also determine the lone pairs, which, at the same time, define the molecular geometry.

<h3>Molecular geometry:</h3>

In chemistry, molecules are not necessarily flat arrangements of atoms, yet they have specific bond angles, orientations and shapes, which define the molecular geometry. In such a way, we can use the VSEPR theory in order to know the molecular geometry of a molecule; however, we first need its Lewis structure or at least the number and type of bonds to do so.

Consider water and carbon dioxide; the former has two hydrogen to oxygen bonds (O-H) and 2 lone pairs because O has six valence electrons but just 2 are bonded to complete the octet, so 4 unpaired electrons lead to two lone pairs. On the other hand, the latter has two double bonds (C=O) and 0 lone pairs because carbon has four valence electrons and they are all bonded to complete the octet.

In such a way, one can see how the double bond affected the bonding in CO2 in contrast to the H2O; situation that also applies to triple bonds, because CO2 has a linear molecular geometry whereas water has a bent one (see attached picture)

Hence, one comes to the conclusion that double and triple bonds contribute to the degree in which an atom is bonded and they also determine the lone pairs, which, at the same time, define the molecular geometry.

Learn more about molecular geometry: brainly.com/question/7558603

Learn more about the VSEPR theory: brainly.com/question/14225705

5 0

2 years ago

Which separation techniques will you apply for the separation of the following? a) oil from water b) kerosene and petrol c) salt

REY [17]

Answer:

A) Separating funnel method

B) Simple Distillation

C) Evaporation

D) Sublimation

E) It is based on the principle of separation whereby even though two substances are dissolved in the same solvent, their respective solubilities could be different. Thus, the component that has more solubility will rise fastest and will therefore get separated from the mixture.

Explanation:

A)

B) Kerosene and petrol are both miscible liquids and the difference in their boiling point temperature is not more than 25°C. Thus, we make use of Simple distillation.

C) Can be separated by evaporation where the water is boiled and it evaporates and leaves the salt behind

D) To separate camphor from salt, we use sublimation so the camphor can change directly from solid to the gas state without passing through the liquid state.

E) Chromatography is used to separate components of a mixture.

It is based on the principle of separation whereby even though two substances are dissolved in the same solvent, their respective solubilities could be different. Thus, the component that has more solubility will rise fastest and will therefore get separated from the mixture.

7 0

3 years ago

What is the term called ¨I nutted

nydimaria [60]

You nutted in her left eye

6 0

3 years ago

Which conclusion can be made from Gay-Lussac's law? (1 point)

MrRa [10]

The answer to the question Which conclusion can be made from Gay-Lussac's law is For a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin

Gay-Lussac's law shows the relationship between the pressure of a fixed mass of gas and its temperature in Kelvin.

It states that for a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin.

Mathematically, P ∝ T

P = kT

$\frac{P}{T} = k$

$\frac{P_{1} }{T_{1} } = \frac{P_{2} }{T_{2} }$

So, the answer to the question Which conclusion can be made from Gay-Lussac's law is For a constant volume, the pressure of a gas is directly proportional to the temperature in Kelvin

Learn more about Gay Lussac's law here:

brainly.com/question/24002551

4 0

3 years ago