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2 years ago

WILL MARK BRAINLIEST!! How is a map an example of a model?

1 answer:

7 0

A model represents a place thing or idea. A made is a model as it shows a place and represents the place it’s showing such as a globe

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Which element would be the most reactive with K? Br, Na, Ar, or O? And how do you know?

kykrilka [37]

Ar I did this I think i got it right on edunuty

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2 years ago

Why would a biological stain be used? (Give examples of stains and their uses)

Allushta [10]

Answer:

Biological stains are used for the medical and biological industries to aid in detection of structures within tissues. This can include the detection of abnormalities, but is not limited to that. The stains are used to define and examine cell populations within the tissues, to mark cells, or to flag proteins.

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1 year ago

If one adds 0.1 mol of the weak acid hf (pk_a = 3.2) to a solution with a ph = 2, which species would be most abundant and how m

zavuch27 [327]

$F^{-}$ is most abundant and 6310 times more than HF.

<h3>What is a strong and weak acid?</h3>

When an acid is dissolved in water, all of its molecules disintegrate, making the acid powerful.

When an acid is dissolved in water, only a small number of its molecules disintegrate, making the acid weak. Strong acids have a lower pH than weak acids.

The powerful acids include perchloric acid, chloric acid, nitric acid, sulfuric acid, hydrobromic acid, and hydroiodic acid.

Given:

Pka=3..2

pH=7

Let the volume be 1 liter

[HF]=01 M

$pH=pka+log \frac{F^{-}}{HF} \\\\7=3.2+log\frac{F^{-}}{HF} \\3.8=log\frac{F^{-}}{HF}\\ \frac{F^{-}}{0.1}=10^{3.8} \\F^{-}=630.95 M$

Now,

$\frac{F^{-}}{HF}=\frac{630.95}{0.1}\\ =6309.57$

F-:HF= 6309.57:1

Therefore, the most abundant is $F^{-}$ and has 6310 times more than HF is $F^{-}$ .

To know more about strong and weak acids, visit: brainly.com/question/12811944

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1 year ago

Particals in the nucleus of an atom are its _________ and ____________.

Illusion [34]

That would be Protons and Neutrons.

6 0

2 years ago

Is magnetic a physical or chemical property

weqwewe [10]

Magnetic is a physical property.

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2 years ago