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Lesechka [4]
4 years ago
7

Definition of enthalpy

Chemistry
2 answers:
ludmilkaskok [199]4 years ago
8 0
 Thermodynamic quantity equivalent to the total heat content of a system It is equal to the internal energy of the system plus the product of pressure and volume
just olya [345]4 years ago
5 0
The definition for Thermodynamic is a quantity equivalent to the total heat content of a system It is equal to the internal energy of the system plus the product of pressure and volume. Hope it help!
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How is stoichiometry used to calculate the amount of product from amount of reactant?
IceJOKER [234]
<span>Stoichiometry deals with the quantitative measurement of reactants and products in a chemical reaction. Let suppose you are given with following reaction;

                                            A  +  2 B   </span>→    3 C

According to this reaction 1 mole of A reacts with 2 moles of B to produce 3 moles of C. Now using the concept of mole one can easily measure the amount of reactants reacted and the amount of product formed, as...

                    1 Mole Exactly equals 6.022 × 10²³ particles

                    1 Mole of Gas (at STP) exactly occupies 22.4 L Volume

                    1 Mole of any compound exactly equals the molar mass in                                 grams

Therefore, <span>Stoichiometry is very helpful in quantitative analysis.</span>
6 0
3 years ago
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. What is the mass, in grams, of a sample of 7.83 × 1024 atoms of helium (He)?
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Moles He = 7.83 x 10^24 / 6.02 x 10^23 =13.0 

<span>mass He = 13.0 mol x 4.00 g/mol = 52.0 g</span>
6 0
3 years ago
What is symbol, molecule, electrovalent compound?​
jok3333 [9.3K]

Answer:

the abbreviation form of full name is called symbol.

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8 0
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4.00 g of sodium and 2.00 g of oxygen react according to the following balanced equation 4 Na + O2 → 2 Na2O Calculate the mass o
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ryzh [129]

Answer:

Explanation:

6. When insulating materials rub against each other, they may become electrically charged .

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8. Grounding is the process of removing the excess charge on an object by means of the transfer of electrons between it and another object of substantial size.

9. Grounding is the process of removing the excess charge on an object by means of the transfer of electrons between it and another object of substantial size.

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