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Greeley [361]
3 years ago
11

Instruction

Chemistry
2 answers:
siniylev [52]3 years ago
6 0

Answer:

A: 1

B: 2

C: 1

D: 1

Explanation:

I did the question on edge 2020 :>

valkas [14]3 years ago
4 0

Answer:

A: object 1

B: object 2

C: object 1

D: object 1

Explanation:

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How does a sample of water at 38 °C compare to a sample of water at 295 K? The water at 38 °C has a lower average kinetic energy
Drupady [299]

Answer:

The water at 38 °C has faster-moving molecules than the sample at 295 K.

Explanation:

Converting the temperature, 295 K from Kelvin to Celsius:

295 - 273 = 22°C

⇒The boiling point of water is 100°C  and its melting point 0°C

⇒When we compare water at those 2 different temperatures ( 22°C and 38°C) we can say that water is in liquid form at both these temperatures as both of them are quite below the boiling temperature and above the melting temperature.

⇒The difference in temperature between water at the 2 given  temperatures = 38°C - 22°C = 16°C

Water at 38°C is at a higher temperature and so is warmer than water at a lower temperature of 22°C.

At the atomic scale, the kinetic energy of atoms and molecules is sometimes referred to as heat energy. Kinetic energy is also related to the concept of temperature. Temperature is defined as the measure of the average speed of atoms and molecules. The higher the temperature, the faster these particles of matter move.

3 0
3 years ago
A _______ allosteric regulator _______ the rate of an enzyme-catalyzed reaction by inducing the active site of the enzyme to bec
inn [45]
<span>Below are the choices that can be found from other sources:

a) negative; increases; hidden
b) positive; increases; exposed
c) positive; decreases; hidden
d) negative; decreases; exposed

The answer is </span><span>b) positive; increases; exposed.

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6 0
4 years ago
Find the cell potential for a system whose ∆G = +55 kJ and 3 moles of electrons are exchanged.
rosijanka [135]

Answer:- cell potential = -0.19 volts

Solution:- The equation that shows the connection between \Delta G and cell potential, E is written  as:

\Delta G=-nFE

in this equation, n stands for moles of electrons, E stands for cell potential and F stands for faraday constant and it's value is \frac{96485C}{mol} .

It asks to calculate the value of E, so let's rearrange the equation:

E=-\frac{\Delta G}{nF}

Let's plug in the values in it:

E=-\frac{55kJ}{3mol*96485C.mol^-}

E=-\frac{0.00019kJ}{C}

since, \frac{1kJ}{C}=1000V

Where C stands for coulombs and V stands for volts.

So, E=-\frac{0.00019kJ}{C}(\frac{1000V}{\frac{1kJ}{C}})

E = -0.19 V

So, the cell potential is -0.19 volts.


4 0
3 years ago
In mutualism _____.
yawa3891 [41]

Answer:

3'' one is correct answer

Explanation:

in mutualism, organisms of different species benefit from cooperation

8 0
3 years ago
Convert 12.5 km/L to mi/gal.
Elina [12.6K]

Answer:

29.40182

Explanation:

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3 years ago
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