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Rufina [12.5K]
4 years ago
12

If you have an element with 46 protons and 44 electrons, the net charge of the element is

Chemistry
1 answer:
finlep [7]4 years ago
8 0

The answer is b because 46-44 = positive 2.

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Select the true statements about eicosanoids. a. Eicosanoids are broken down within seconds to inactive residues. b. Arachidonic
Evgen [1.6K]

Answer: the true statements about eicosanoids includes options A,B,D,E

Explanation:

EICOSANOIDS are mostly produced from the precursor arachidonic acid, a C20 polyunsaturated fatty acid. They are broken down within seconds to inactive residues after synthesis.High concentrations of eicosanoids are necessary for effective action.The three major types of eicosanoids includes:

-prostaglandins,

- thromboxanes, and

- leukotrienes.

Depending on the above types mentioned, they play a role in inflammation, pain, fever promotion, blood pressure regulation, and blood clotting. They also influence the immune response and certain respiratory and reproductive processes.

However, eicosanoids are NOT transported in the blood stream to their site of action RATHER they exert their effects on the tissue where they are synthesized.

6 0
3 years ago
What is the wavelength (in meters) of an electromagnetic wave whose frequency is 2.63 × 1012 s−1?
aleksklad [387]
To find the wavelength of an  electromagnetic wave for the given frequency can be determined by using the formulaSpeed=Wavelength x FrequencyWavelength=Speed/FrequencyGenerally Speed of the electromagnetic wave is 3x10^8 m/sBy substituting the values Wavelength=3x10^8 m/s / 2.63x10^12 s^-1Wavelength=1.14 x 10^-4 metres
4 0
3 years ago
" what is the total positive charge the protons have together ? " how do I tell?? Please help!!!
zzz [600]
To calculate this, the first step is to determine the number of protons in each atom of the ion. You can use their atomic number to find the number of protons. If the number protons and electrons are equal there is no charge, so the next step is to determine how many electrons to add or remove to the number of protons.
8 0
4 years ago
I really need help. Please
Oliga [24]

physical change

particles retain there composition and identity

there is no change in there chemical properties of the substance

the chemical changes should be the other two.

If it is wrong I'm truly sorry.

6 0
3 years ago
Somebody help me please i'm tired of trying to solve this problem ༎ຶ‿༎ຶ​
Elenna [48]

Answer:

Q    Line     A

A: (a) 0 (b) 20

B: (b) 10 (c) 10

C: (c) 10 (d) 10

D: (d) 10 (e) 13

E: (e) 13 (f) 0

F: (f) 0 (g) 0

a: The velocity is whatever you need to see when you are specifically using a numberline so the answer for a is just 10

b: The velocity for this one is not as easy as the last one, its 7.

Explanation:

When you have a number line and your trying to find a numberline, you just have to subtract the smaller line to the largest number but if you are trying to find the velocity in beetween more than one thane you add the two biggest ones and subtract the smallest one and if you make a wrong move like add the biggest and smalles youll... still get the same answer so it doesnt matter really but its just easier to do the smallest one as the subtracting number just FYI. Happy spring break!

5 0
2 years ago
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