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OLga [1]
4 years ago
14

Which statement must be true for any chemical reaction at equilibrium?

Chemistry
2 answers:
UNO [17]4 years ago
6 0

Answer:

Answer is 4 The concentration of the products and the concentration of the reactants are constant.

Explanation:

sergejj [24]4 years ago
4 0
<span>The correct answer is 3. The concentration of the product and the concentration of the reactants are equal. That is because matter cannot be created or destroyed and the product cannot randomly become something else in the reaction, nor can a reactant change into something different. Simply put, you cannot turn things like water into gold because there will always be an equilibrium.</span>
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What is the process that is commonly used to assure desirable characteristics, or traits, in the offspring of animals?
valina [46]
A. Selective breeding
5 0
3 years ago
what are the reactants in the first word equation above. magnesium+hydrochloric acid ⇒ magnesium chloride + hydrogen
Alex

Answer:

magnesium+ hydrochloric acid is the reactants

Explanation:

the reactants are always in the left and the products are always in the right by

magnesium+hydrochloric acid ⇒ magnesium chloride + hydrogen

by combining magnesium and hydrochloric acid it produces magnesium chloride and hydrogen.

hope this helps..

6 0
3 years ago
How many moles of ZnCl, will be produced from 23.0 g of Zn, assuming CuCl, is available in excess?
Dennis_Churaev [7]

Answer:

23 g of Zn will produce 0.352 mole of zinc chloride.      

Explanation:

Given data:

mass of Zn = 23 g

Moles of ZnCl = ?

Solution:

Chemical equation:

2Zn + CuCl₂ → 2ZnCl + Cu

Number of moles of Zn:

<em>Number of moles of Zn = mass/ molar mass</em>

Number of moles of Zn = 23 g / 65.38 g/mol

Number of moles of Zn = 0.352 mol

now we will compare the moles of ZnCl with Zn because it is limiting reactant.

                         Zn       :      ZnCl  

                         2         :        2

                         0.352 :        0.352

So 23 g of Zn will produce 0.352 mole of zinc chloride.      

7 0
4 years ago
the lewis dot structure rule states that S=N-A. recall that A represents the TOTAL number of valence electrons available from al
Afina-wow [57]

Answer: oh i thought i knew it nvm im sorry love

Explanation:

6 0
3 years ago
If the molar enthalpy for the formation of a compound is –192 kJ, why is the molar enthalpy of the decomposition of that compoun
Olenka [21]
Because the decomposition is the reverse process of the formation.

Enthalpy is a function of state, which means that the value dependes only on the state and not the pathway.


Then the change of enthalpy is the same in magnitude for both cases but in formation the change is netavie (releases energy) and in the other is postive (absorbs energy).
3 0
4 years ago
Read 2 more answers
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