All categories

3 years ago

What is the standard cell notation of a galvanic cell made with zinc (Zn) and aluminum (Al)?

Chemistry

2 answers:

lara31 [8.8K]3 years ago

4 0

A. zb. zinc is reduced and aluminum is oxidized

Leto [7]3 years ago

3 0

for apex, the answer is

C. Al(s) | Al3+(aq) || Zn2+(aq) | Zn(s)

You might be interested in

Calculate the number of grams of C2H6 in 4.6 miles of C2H6

Bezzdna [24]

M (C2H6) = n × M = 4.6 × 30 = 13.8 g.

3 0

3 years ago

Rank the following substances in order from most soluble in water to least soluble in water: methane, CH4; 2-butanol, C4H9OH; po

nata0808 [166]

Answer:

Arranged in order of most soluble to least soluble in water:

$KCl > CH_{4} > C_{4} H_{9} OH > C_{3}H_{8}$

Explanation:

Water is a polar solvent due to the electric charge it possesses. Hence it would only dissolve polar molecules.

Non-polar molecules would be dissolved by non-polar solvents.

Short chain alcohols are more soluble than butanol, but generally the polar -OH group is soluble in water.

3 0

3 years ago

An excited ozone molecule, O3*, in the atmosphere can undergo one of the following reactions,O3* → O3 (1) fluorescenceO3* → O +

Maurinko [17]

Answer:

The simplified expression for the fraction is $\text {X} = \dfrac{ {k_3 \times cM} }{k_1 +k_2 + k_3 }$

Explanation:

From the given information:

O3* → O3 (1) fluorescence

O + O2 (2) decomposition

O3* + M → O3 + M (3) deactivation

The rate of fluorescence = rate of constant (k₁) × Concentration of reactant (cO)

The rate of decomposition is = k₂ × cO

The rate of deactivation = k₃ × cO × cM

where cM is the concentration of the inert molecule

The fraction (X) of ozone molecules undergoing deactivation in terms of the rate constants can be expressed by using the formula:

$\text {X} = \dfrac{ \text {rate of deactivation} }{ \text {(rate of fluorescence) +(rate of decomposition) + (rate of deactivation) } } }$

$\text {X} = \dfrac{ {k_3 \times cO \times cM} }{ {(k_1 \times cO) +(k_2 \times cO) + (k_3 \times cO \times cM) } }$

$\text {X} = \dfrac{ {k_3 \times cO \times cM} }{cO (k_1 +k_2 + k_3 \times cM) }$

$\text {X} = \dfrac{ {k_3 \times cM} }{k_1 +k_2 + k_3 }$ since cM is the concentration of the inert molecule

7 0

4 years ago

Explain the process of rainwater harvesting with its advantages .

leva [86]

Answer:

the environmental benefits of rain water harvesting

Explanation:

rainwater harvesting can reduce stormwater runoff a property by reducing stormwater runoff rainwater harvesting can reduce is term peak flow volume and velocity in local cricket stream and rivers thereby reducing the potential for stream Bank erosion

4 0

3 years ago

What is electroluminescence? Give one example.

vredina [299]

Answer:

electroluminescence is a production of light by the flow of electrons, as within certain crystals. An example is at most resataurants with a bright sign that either says open or closed.

Explanation:

5 0

3 years ago