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3 years ago

GIVING OUT BRAINLIEST

2 answers:

5 0

In a longitudinal wave, the energy moves in the same direction as the motion of the wave (parallel). The greater the amplitude, the greater the energy.
Therefore, the answer is:
It decreases and is parallel to the motion of the wave.

d1i1m1o1n [39]3 years ago

4 0

Answer:

it increases and is perpendicular to the motion of the wave.

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Question 5 options: The cell potential for an electrochemical cell with a Zn, Zn2 half-cell and an Al, Al3 half-cell is _____ V.

Mashcka [7]

Answer:

The voltage is $E_{cell} = 0.944 \ V$

Explanation:

Generally the half reaction for Zn, Zn2 half-cell is mathematically represented as

$Zn_{(s)}$ ⇔ $Zn^{2+}_{ (aq)} + 2e^-$ (reference study academy)

and the electric potential for this is a constant value

$E_{zn } = -0.7618 \ V$

Generally the half reaction for Al, Al3 half-cell is mathematically represented as

$Al^{3+} _{(aq)} + 3e^-$ ⇔ $Al_{(s)}$

and the electric potential for this is constant value

$E_{Al } = -1.662 \ V$

Therefore the cell potential for an electrochemical cell is mathematically represented as

$E_{cell} = E_{zn } - E_{Al }$

substituting values

$E_{cell} = -0.718 - (-1.662)$

$E_{cell} = 0.944 \ V$

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3 years ago

What are the list of catalysts that can be used for hydrogenation of nitrobenzene???

Alex Ar [27]

Answer:

The multiring aromatic hydrocarbons in the coal liquid were hydrogenated to give saturated molecules that contained only one aromatic ring. Of the several organic bases investigated, potassium bis(trimethylsilyl)amide was found to be the most effective catalyst.

Explanation:

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3 years ago

Dna is made out of two strands of nucleotides that form a twisted ladder shape called a double helix. all of the following are p

Andrews [41]

Answer:

C.) Chromosomes

Explanation:

Nucleotides are made up of three parts: a deoxyribose sugar, a phosphate, and a nitrogen base.

Chromosomes are long, condensed strands of DNA.

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2 years ago

Which part of the graph represents how much energy the reactants need to gain to become products?

damaskus [11]

Answer: The answer is F

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3 years ago

What compound is produced when cyclohexene is treated with concentrated KMnO4?

stira [4]

The correct answer is B. Adipic Acid.

According to coursehero.com

4 0

4 years ago