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xxTIMURxx [149]
3 years ago
10

Which substance has Delta.Hf defined as 0 kJ/mol?

Chemistry
1 answer:
miskamm [114]3 years ago
6 0

Answer:

the answer is 02 (g)

Explanation:

hope this helps :)

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Nervous System Freezes the Muscles:controls senses & most body functions .Carries message & information between the brai
Zolol [24]

Controls senses and most body functions .

Carries message and information between the brain & body​

Explanation:

The nervous system helps to control senses, body functions, carries message and information between brain and the body. It consists of the brain, spinal cord and the nerves.

  • Using series of electrical nerve impulses, the nervous system controls the body administration.
  • The brain, spinal cord and nerves directs communications between different parts of the body system.
  • It is divided into two broad categories, the central nervous system which consists of the brain and spinal cord and the peripheral nervous system which is made up the nerves.

Learn more:

neuron brainly.com/question/4662759

nervous system brainly.com/question/8701152

#learnwithBrainly

3 0
3 years ago
1. (a) What name is given to the law describing the relationship between volume and pressure at constant temperature? Write a ma
Assoli18 [71]

Explanation:

a) Boyle's law states that pressure is inversely proportional to the volume of the gas at constant temperature.  

Pressure\propto \frac{1}{Volume} (At constant temperature)

The equation given by this law is:

PV=k

P_1V_1=P_2V_2

where,

P_1\text{ and }V_1 are initial pressure and volume respectively.

P_2\text{ and }V_2 are final pressure and volume respectively.

b) A graph of the relationship is attached as an image.

6 0
3 years ago
__________ may be shared by or transferred to other atoms.
Vsevolod [243]
D.) "Electrons" <span>may be shared by or transferred to other atoms. 

Hope this helps!</span>
8 0
3 years ago
Read 2 more answers
Based on the molar masses, how can you tell that an equation is balanced?
Ilya [14]
When you work with molar mass, you solve for the quantity of ''Moles'' within the substance by converting Mass. The way you can tell the equation is balanced would be by knowing whether the moles were equivalent on both sides or not. Therefore, if they are equal, it is balanced considering you have the same amount of moles on each side of the equation.
7 0
4 years ago
Read 2 more answers
What is the wavelength of an electron with a mass of 9.109×10−31 kg and a velocity of 3.43×107 ms? Use 6.626×10−34kg m2s for Pla
anyanavicka [17]

<u>Answer:</u> The wavelength of an electron is 2.121\times 10^{-11}m

<u>Explanation:</u>

To calculate the wavelength of a particle, we use the equation given by De-Broglie's wavelength, which is:

\lambda=\frac{h}{mv}

where,

\lambda = De-Broglie's wavelength = ?

h = Planck's constant = 6.626\times 10^{-34}Js

m = mass of electron = 9.109\times 10^{-31}kg

v = velocity of electron = 3.43\times 10^{7}m/s

Putting values in above equation, we get:

\lambda=\frac{6.626\times 10^{-34}Js}{(9.109\times 10^{-31}kg)\times (3.43\times 10^{7}m/s)}

\lambda=2.121\times 10^{-11}m

Hence, the wavelength of an electron is 2.121\times 10^{-11}m

6 0
4 years ago
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