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IgorLugansk [536]
3 years ago
9

Changes that occur during a chemical reaction are represented by a(n) _?_.

Chemistry
1 answer:
bixtya [17]3 years ago
3 0

Answer:

Explanation:

What does it mean by are represented by is it like cells when things can a cell molecule?

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How many moles of H2S are produced?
Ludmilka [50]

Answer:

You can view more details on each measurement unit: molecular weight of H2S or grams This compound is also known as Hydrogen Sulfide. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles H2S, or 34.08088 grams. Note that rounding errors may occur, so always check the results.

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In an open system, the vapor pressure is _____ the outside air pressure.
Jlenok [28]

The vapor pressure is EQUAL TO the outside air pressure.

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3 years ago
Read 2 more answers
Ag(s)+CN−(aq)+O2(g)→Ag(CN)−2(aq) Express your answer as a chemical equation. Identify all of the phases in your answer. Express
Lerok [7]

Answer : The balanced redox reaction will be,

4Ag(s)+8CN^-(aq)+O_2(g)+4H^+(aq)\rightarrow 4Ag(CN)_2^-(aq)+2H_2O(l)

Explanation :

The given chemical equation is,

Ag(s)+CN^-(aq)+O_2(g)\rightarrow Ag(CN)_2^-(aq)

In the half reaction method, the number of atoms in each half reaction and number of electrons must be balanced.

The half reactions in the acidic medium are :

Reduction : O_2(g)+4H^+(aq)+4e^-\rightarrow 2H_2O(l)   ......(1)

Oxidation : Ag(s)+2CN^-(aq)\rightarrow Ag(CN)_2^-(aq)+1e^-  .......(2)

Now multiply the equation (2) by 4 and then added both equation, we get the balanced redox reaction.

Thus, the balanced redox reaction will be,

4Ag(s)+8CN^-(aq)+O_2(g)+4H^+(aq)\rightarrow 4Ag(CN)_2^-(aq)+2H_2O(l)

7 0
4 years ago
Can someone help me with this plz??
cestrela7 [59]

Answer:

I dont know at all and that is confusing.

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3 years ago
Acetylating agents such as acetic anhydride react preferentially with primary amines, iodoacetate reacts preferentially with sul
nydimaria [60]

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