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dsp73
3 years ago
6

A gaseous mixture of o2 and n2 contains 35.8 % nitrogen by mass. what is the partial pressure of oxygen in the mixture if the to

tal pressure is 245 mmhg ?
Chemistry
1 answer:
lubasha [3.4K]3 years ago
5 0
The partial pressure is the amount of linguistic compound there is which makes the lagitude of the element 64.663
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mosquitoes get their food by sucking other animals blood, sometimes giving it disease. what type of symbiosis is this.
Gala2k [10]
I believe that would be a parasitism because one organism benefits yet the other is harmed.
3 0
4 years ago
Read 2 more answers
Compounds mixtures and elements ​
Jlenok [28]

Compound - made out of two or more types of elements chemically combined

Mixture - two or more substances in which the substances retain their identity

Element - simplest form of matter that is present by itself

8 0
4 years ago
The diameter of a sphere is 4 centimeters. Which represents the volume of the sphere?
pishuonlain [190]

Answer:

V=25.133 cm^3

(Is 4 the diameter you were given? To get one of those answers, I think you May have put the wrong diameter)

Explanation:

Radius is diameter/2

R=4/2

R=2

Volume of a sphere=4/3πr3

V=4/3π(2)3

V=25.133 cm^3

7 0
3 years ago
Once the concentration of the common ion is increased: Select the correct answer below: the solubility of the ionic solid increa
Vaselesa [24]

Answer:

the solubility of the ionic solid decreases

Explanation:

If a salt MX is added to an aqueous solution containing the solute AX, the X^- ion is common to both of the salts. The presence of X^- in the solution will suppress the dissolution of AX compared to the solubility of AX in pure water. This observation is known as common ion effect in chemistry.

The origin of common ion effect is based on Le Chatelier's principle. The addition of a solute will drive the equilibrium position towards the left hand side.

3 0
3 years ago
Object is irregularly shaped solid and it is dropped into a graduated cylinder and it displays 25 mL of water and has a mass of
Blababa [14]

Answer:

<h2>1.2 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}\\

From the question

mass = 30 g

volume= 25 mL

We have

density =  \frac{30}{25}  \\  = 1.2

We have the final answer as

<h3>1.2 g/mL</h3>

Hope this helps you

7 0
3 years ago
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