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Julli [10]
3 years ago
12

Other than bacteria, which factor leads to nitrogen fixation?

Chemistry
2 answers:
alina1380 [7]3 years ago
4 0
Lightning rain can lead to nitrogen fixation other than bacteria
bezimeni [28]3 years ago
3 0
  the answer is lightning<span />
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Why does water with salt in it freeze much more slower than water without it ? Explain
serg [7]
When you add salt to water, you lower to freezing point of the substance.

So for example, normal water freezes at 0°C. But water with salt in it won't freeze at 0°C, because its freezing point is lowered. 

In answer to the question. It takes longer for water with salt in it to freeze because the substance requires a lower temperature than normal water to freeze.
4 0
3 years ago
Read 2 more answers
An unknown metal cylinder has a mass of 34.3 g and a volume of 2.1 mL . What is the density of the metal in g / m * L ?​
saul85 [17]

Taking into account the definition of density, the density of the metal is 16.33 \frac{g}{mL}.

<h3>Definition of density</h3>

Density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

From this expression it can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.

<h3>Density of the metal in this case</h3>

In this case, you know that:

  • Mass= 34.3 g
  • Volume= 2.1 mL

Replacing in the definition of density:

density=\frac{34.3 g}{2.1 mL}

Solving:

<u><em>density= 16.33 </em></u>\frac{g}{mL}

In summary, the density of the metal is 16.33 \frac{g}{mL}.

Learn more about density:

<u>brainly.com/question/952755?referrer=searchResults</u>

<u>brainly.com/question/1462554?referrer=searchResults</u>

6 0
1 year ago
Explain why a mixture is used as the electrolyte??
natta225 [31]

Answer:

You need a mixture of positive and negative ions

Explanation:

6 0
2 years ago
Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you t
Phantasy [73]

Answer:

Samples A and B are mixtures

Explanation:

For sample A, we were told that the initial density of the solution is 0.77/gmL. After distillation, the liquid left has a density of 1.04/gmL. Apparently, A is a mixture of liquids.

As for sample B, the spread of the chromatogram resulting in different colours show that the sample B is not pure. It is a mixture of substances. A pure sample will yield only a single spot.

7 0
3 years ago
Which statement best describes what happens as thermal energy from the
salantis [7]

Answer:

D

Explanation:

The correct answer would be that <u>the thermal energy of the sun is transferred to the pavement.</u>

Thermal energy refers to the internal energy possessed by a system by virtue of the movement of molecules within such a system. In other words, it is the heat energy possessed by a system.

When the thermal energy from the sun warms the pavement, it means that the thermal energy from the sun has been successfully transferred to the pavement. Thermal energy can be transferred by conduction, convection, or by radiation depending on whether the system is a solid, liquid, gas respectively.

<em>The correct option is, therefore, D. </em>

6 0
3 years ago
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