The following reaction does not proceed to a product: H2O + Ag --> no reaction. Why is that?A) The reaction proceeds too slowly too create products.
B) The reaction cannot occur because water is reactant.
C) Silver has a higher activity than hydrogen and cannot replace it.
D) Silver has a lower activity than hydrogen and cannot replace it.
Answers
Answer:
D - Silver has lower reactivity than hydrogen and cannot replace it
Explanation:
If we assume , Ag also reacts just like other metals as
Metal + H₂O ---> Metal Hydroxide + H₂
then Ag forms as
Ag + H2O ----->AgOH + H2
here Ag is converting into Ag⁺ and 2H⁺ are converting into H₂
for reaction Ag --->Ag⁺ + e⁻ E° = -0.799 V
for reaction H⁺ + e⁻ ---->H₂ E° = 0 V
by Adding those 2 above equations net E° will be -0.799 which is negative.As per Faradays Law
ΔG° = -nFE°
here we got E° as negative then ΔG° will be positive
As per thermodynamics if ΔG° is +ve then reaction is not feasible
so, then given reaction does not occur.....
Answer:
Silver has lower reactivity than hydrogen and cannot replace it
Explanation:
took test
Related Questions
The recommended daily requirement of calcium is1,000 mg. Tap water in a Midwestern city contains approximately 150 mgCa/L. A person living in the city who drinks two liters of water in oneday would receive ________ percent of his/her RDA of calcium. A. 3B. 7.5C. 15D. 30
Why do saturated fatty acids have straight structures, while unsaturated fatty acids have bent structures?a. Saturated fatty acids have a larger mass. b. Saturated fatty acids contain many more bonds. c. Saturated fatty acids have single carbon-to-carbon bonds. d. Saturated fatty acids contain more carbon atoms.
Which compound is an isomer of CH3CH2OH
The molecule shown belongs to which class of compounds1) Alcohol 2) Ester3) Aldehyde 4) Amino Acid
Answers
The total mass of the solution is 15 g (Na₂CO₃) + 235 g (H₂O) = 250 g (solution).
Now, let's calculate the mass percent of Na₂CO₃:
Mass percent of Na₂CO₃ = (mass of Na₂CO₃ / total mass of solution) * 100
= (15 g / 250 g) * 100
= 6%
Therefore, the mass percent of Na₂CO₃ in the solution is 6%.
Final answer:
The mass percent of a solution is calculated by dividing the mass of the solute by the total mass of the solution and multiplying by 100%. In this case, the solute is Na₂CO₃ and the solvent is H₂O. The calculation yields a mass percent of 6% for Na₂CO₃ in the solution.
Explanation:
To calculate the mass percent of a solution, we need the mass of the solute and the mass of the solution (which is the sum of the masses of the solute and the solvent). In your given solution, you have 15 g of Na₂CO₃ (solute) and 235 g of H₂O (solvent). Therefore, the total mass of the solution is 15 g (Na₂CO₃) + 235 g (H₂O) = 250 g.
Now, to find the mass percent of Na₂CO₃ in the solution, we use the following formula:
Mass percent = (mass of solute / total mass of solution) × 100%
Substitute the known values into the formula, we get:
Mass percent = (15 g / 250 g) × 100% = 6%
So, the mass percentage of Na₂CO₃ in the H₂O solution is 6%.
Learn more about mass percent here:
#SPJ11
square inch, what is the area of her feet in cubic centimeters?
__cm2
Answers
The area = 313.612 cm²
Further explanation
Force (F) can cause objects to move
While pressure (P)is the force per unit area
weight=force=105 pounds(lb)⇒english units
pressure = 2.16 lb/in²
Thea are (A)
Answers
A student decreases the temperature of a 556 cm^3 balloon from 278 K to 231 K at constant pressure
Required:
new volume of the balloon
Solution:
Apply Boyle's law
V1/T1 = V2/T2
(556 cm3) / (278K) = V2 / (231 K)
V2 = 462 cm3
Answers
Answer:
10 g
Explanation:
Right from the start, just by inspecting the values given, you can say that the answer will be
10 g
.
Now, here's what that is the case.
As you know, a substance's specific heat tells you how much heat is needed to increase the temperature of
1 g
of that substance by
1
∘
C
.
Water has a specific heat of approximately
4.18
J
g
∘
C
. This tells you that in order to increase the temperature of
1 g
of water by
1
∘
C
, you need to provide
4.18 J
of heat.
Now, how much heat would be required to increase the temperature of
1 g
of water by
10
∘
C
?
Well, you'd need
4.18 J
to increase it by
1
∘
C
, another
4.18 J
to increase it by another
1
∘
C
, and so on. This means that you'd need
4.18 J
×
10
=
41.8 J
to increase the temperature of
1 g
of water by
10
∘
C
.
Now look at the value given to you. If you need
41.8 J
to increase the temperature of
1 g
of water by
10
∘
C
, what mass of water would require
10
times as much heat to increase its temperature by
10
∘
C
?
1 g
×
10
=
10 g
And that's your answer.
Mathematically, you can calculate this by using the equation
q
=
m
⋅
c
⋅
Δ
T
, where
q
- heat absorbed/lost
m
- the mass of the sample
c
- the specific heat of the substance
Δ
T
- the change in temperature, defined as final temperature minus initial temperature
Plug in your values to get
418
J
=
m
⋅
4.18
J
g
∘
C
⋅
(
20
−
10
)
∘
C
m
=
418
4.18
⋅
10
=
10 g
Answers
Neither Bromine, nor Magnesium react with any sort of water.
Answers
a compound is two or more elements chemically combined- salt, water
Answer:
A mixture is physical, while a compound is chemical.
Explanation:
A mixture is a combination of two or more substances that are physically mixed together. The components of a mixture can be easily separated from one another by physical means, such as filtration or evaporation. The substances in a mixture retain their individual properties and do not chemically react with one another. For example, a mixture of salt and sand can be separated by dissolving the salt in water and then filtering the mixture to remove the sand particles. Each component of the mixture retains its own properties throughout the process. On the other hand, a compound is a substance that is made up of two or more different elements chemically combined in fixed proportions. The components of a compound are held together by chemical bonds, resulting in a new substance with different properties from the original elements. Compounds cannot be easily separated into their individual components by physical means. For example, water (H2O) is a compound made up of hydrogen and oxygen. The elements hydrogen and oxygen chemically react to form water, and it is not possible to separate the hydrogen and oxygen in water by physical means alone. In summary, a mixture is a physical combination of substances that can be easily separated, while a compound is a chemical combination of elements that cannot be easily separated. Mixture components retain their individual properties, while compounds have properties different from their component elements.