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ratelena [41]
3 years ago
7

Which of the following statements regarding the movement of electrons during cellular respiration is true?

Chemistry
1 answer:
galina1969 [7]3 years ago
3 0

Answer:

B. O2 is reduced when it accepts electrons and forms water.

Explanation:

During cellular respiration water is formed when oxygen receives electrons and picks up protons at the conclusion of the electron transport chain. The electron transport chain will stop functioning if there isn't enough oxygen to receive electrons (for example, because a person isn't breathing in enough oxygen), and ATP will no longer be created by chemiosmosis. Cells can't carry out the reactions they need to function if they don't even have enough ATP, and they may perish after a long period of time.

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Wie geht diese Aufgabe?
bogdanovich [222]

Answer:

1u1u2j2jj and her family

Explanation:

I have been 9in 7the 6same 6of 8for and then I am a solicitor at Cardiff on

3 0
3 years ago
The reaction 2HI → H2 + I2 is second order in [HI] and second order overall. The rate constant of the reaction at 700°C is 1.57
In-s [12.5K]

Answer:

1.135 M.

Explanation:

  • For the reaction: <em>2HI → H₂ + I₂,</em>

The reaction is a second order reaction of HI,so the rate law of the reaction is: Rate = k[HI]².

  • To solve this problem, we can use the integral law of second-order reactions:

<em>1/[A] = kt + 1/[A₀],</em>

where, k is the reate constant of the reaction (k = 1.57 x 10⁻⁵ M⁻¹s⁻¹),

t is the time of the reaction (t = 8 hours x 60 x 60 = 28800 s),

[A₀] is the initial concentration of HI ([A₀] = ?? M).

[A] is the remaining concentration of HI after hours ([A₀] = 0.75 M).

∵ 1/[A] = kt + 1/[A₀],

∴ 1/[A₀] = 1/[A] - kt

∴ 1/[A₀] = [1/(0.75 M)] - (1.57 x 10⁻⁵ M⁻¹s⁻¹)(28800 s) = 1.333 M⁻¹ - 0.4522 M⁻¹ = 0.8808 M⁻¹.

∴ [A₀] = 1/(0.0.8808 M⁻¹) = 1.135 M.

<em>So, the concentration of HI 8 hours earlier = 1.135 M.</em>

8 0
3 years ago
Determines the mass of the atom
Marizza181 [45]

Answer:

No of neutrons and protons decides mass of the atom. Electrons having negligible

mass are ignored.

Mass of atom

Mass of atom= sum of no of protons(Z) and neutons(N)

=Z+N

For eg:

In hydrogen atom,

Mass of H= Z+N

=1+0

=1 AMU

5 0
3 years ago
You must find happiness right where you are lyrics
Vlad [161]

Answer:

I'm guessing this is for "Where you are" from Moana as it's the only song I could find that goes <em>"You must find happiness where you are".</em>

Lyrics:

Moana, make way, make way

Moana, it's time you knew

The village of Motunui is

All you need

The dancers are practicing

They dance to an ancient song

(Who needs a new song? This old one's all we need)

This tradition is our mission

And Moana, there's so much to do (make way)

Don't trip on the taro root

That's all you need

We share everything we make (we make)

We joke and we weave our baskets

The fishermen come back from the sea

I wanna see

Don't walk away

Moana, stay on the ground now

Our people will need a chief

And there you are

There comes a day

When you're gonna look around

And realize happiness is

Where you are

Consider the coconut (the what?)

Consider its tree

We use each part of the coconut

That's all we need

We make our nets from the fibers

The water is sweet inside

We use the leaves to build fires

We cook up the meat inside

Consider the coconuts

The trunks and the leaves

The island gives us what we need

And no one leaves

That's right, we stay

We're safe and we're well provided

And when we look to the future

There you are

You'll be okay

In time you'll learn just as I did

You must find happiness right

Where you are

I like to dance with the water

The undertow and the waves

The water is mischievous

I like how it misbehaves

The village may think I'm crazy

Or say that I drift too far

But once you know what you like, well

There you are

You are your father's daughter

Stubbornness and pride

Mind what he says but remember

You may hear a voice inside

And if the voice starts to whisper

To follow the farthest star

Moana, that voice inside is

Who you are

We make our nets from the fibers

The water is sweet inside

We use the leaves to build fires

And cook up the meat inside

The village believes in us

The village believes

The island gives us what we need

And no one leaves

So here I'll stay

My home, my people beside me

And when I think of tomorrow

There we are

I'll lead the way

I'll have my people to guide me

We'll build our future together

Where we are

'Cause every path leads you back to

Where you are

You can find happiness right

Where you are

Where you are

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3 years ago
HELP ME PLEASE!! ASAP
cestrela7 [59]

(4) 3- ethyl -2,5 dimethyl -1,4 -hexadiene

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3 years ago
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