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Alja [10]
1 year ago
9

Atoms of what class of elements are used to absorb electrons in electron-dense stains?

Chemistry
1 answer:
lesantik [10]1 year ago
8 0

The elements of heavy metals are used to absorb electrons in electron-dense stains.

<h3>What are heavy metals?</h3>

A heavy metals are generally defined as metals with relatively high densities, atomic weight and atomic number.

They toxic and poisonous in nature. They occurs naturally and are very essential to life.

Arsenic, cadmium, lead, copper, nickel and mercury are the most commonly used heavy metals.

Electron staining means to absorb heavy metals of high scattering power to biological specimens which exhibit a small scattering power for electrons.

Thus, the elements of heavy metals are used to absorb electrons in electron-dense stains.

To learn more about  heavy metals, refer to the link below:

brainly.com/question/3937595

#SPJ4

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What is the definition of a solution
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A solution means that you're trying to solve (or deal) with a situation.

For example, if you're having trouble trying to solve a math problem, that means that you're trying to figure out that problem.
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3 years ago
An object with a height of 0.3 meter is placed at a distance of 0.4 meter from a concave spherical mirror. An image with a heigh
Sophie [7]

We can use the magnification equation for this problem.

Magnification equation:

<em>hi/h0 = di/d0</em>

Where in <em>hi </em>: image size, <em>h0</em> : object size, <em>di </em>: image distance, <em>d0 </em>: object distance from mirror

So plugging in the given variables we will have the corresponding equation

0.1 m / 0.3 m = <em>di / </em>0.4 m

<em>di</em> = 0.1333333m

The generated image of the object is located 0.13 meters or 13 cm away from the mirror

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3 years ago
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Find a substance that has a specific heat that is higher than liquid water and explain what it means.
svlad2 [7]
Liquid ammonia 
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A reaction was suppose to produce 20 L of gas. Only 12 litters of gas were produced in the lab. What is the percent yield for th
pogonyaev

Answer:

\boxed {\boxed {\sf 60 \%}}

Explanation:

Percent yield is a ratio of the actual yield to the theoretical yield. It is found using this formula:

\% \ yield= \frac {actual \ yield}{theoretical \  yield} *100

The actual yield is 12 liters, because that was actually produced in the lab.

The theoretical yield is 20 liters, because that was the expected yield.

\% \ yield= \frac {12 \ L}{20\ L} *100

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For this reaction, the percent yield is 60%.

5 0
3 years ago
Inclined planes reduce the amount of effort needed to move an object, but increases
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Inclined planes reduce the amount of effort needed to move an object, but increases the length of the ramp.

<u>Explanation:</u>

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As it is known that an object can be easily moved on an inclined plane than on a vertical plane, this is because, the inclined plane provides greater output force. But in that case, the effort required will be reduced with the cost of increasing the distance of the movement of object.

In other terms , the ramp's length of inclined planes has to get increased in order to reduce the amount of effort needed to move an object. This is because as the mechanical advantage has length of the ramp in the numerator, with the increase in numerator value or length value the mechanical advantage will also increase.

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