A graduate student working toward a PhD in Chemistry discovers an efficient, powerful redox reaction involving an uncommon combination of chemicals. In order to show other chemists the voltage generated by the reaction, the student would most likely record information in

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Answer 1

Answer:

In order to show other chemists the voltage generated by the reaction, the student would most likely record information in the Standard Reduction Potentials in Aqueous Solution at 25 degrees Celsius. This is a list of ions in the solution at standard temperature and pressure.

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Chapter 2.4.1. The ______ energy lost by the inward movement of nickel-iron within a differentiating molten planetary body would be converted first into _______ energy and then into ______ energy. a. momentum, thermal, gravitational b. gravitational, kinetic, thermal c. thermal, momentum, kinetic d. kinetic, thermal, gravitational

It's important to remember that elements are

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No, unless you're doing some sort of course where they demand that you do. It's useful to remember the general features of the periodic table (what each block is, where they are in relation to each other, roughly where the most common elements are), but memorizing the entire thing would simply be a mnemonic exercise

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Answer:

i used a vent to vented

Explanation:

The main function of the kidney bladder and ureter is-?

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Answer:

The urinary system's function is to filter blood and create urine as a waste by-product. The organs of the urinary system include the kidneys, renal pelvis, ureters, bladder and urethra.

Explanation:

Mintu wants to increase the heat transfer between a metal iron and another piece of metal he wants to shape. He decides to increase the time the two metals are in contact, use a larger metal iron, and use a new metal material with a higher specific heat. Where is Mintu's error?A:Mintu should have decreased the size of the metal iron
B:Mintu should have decreased the time he touches the two metals
C:Mintu should have chosen a material with a lower specific heat
D:Mintu should have chosen a material the same temperature as the iron.

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Answer: Option (C) is the correct answer.

Explanation:

The amount of heat necessary to raise the temperature of 1 gram of a substance by $1^(o)C$ is known as specific heat of a substance.

Mathematically, q = $mC \Delta T$

where, q = Heat energy

C = specific heat

$\Delta T$ = change in temperature

Hence, smaller is the amount of heat required by a substance to raise the temperature of its 1 g by $1^(o)C$ more readily it will get hot.

Therefore, out of the given options specific heat of copper is small. So, copper will heat up quickly.

Thus, we can conclude that Mintu's error is that Mintu should have chosen a material with a lower specific heat.

Answer:

C - Mintu should have chosen a material with a lower specific heat.

Explanation:

0n edge 2020

Which of the following statements correctly describe(s) the driving forces for diffusion of Na+ and K+ ions through their respective channels?

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Question:

Which of the following statements correctly describe(s) the driving forces for diffusion of Na+ and K+ ions through their respective channels? Select all that apply.

A)The diffusion of Na+ ions into the cell is facilitated by the Na+ concentration gradient across the plasma membrane.

B)The diffusion of Na+ ions into the cell is impeded by the electrical gradient across the plasma membrane.

C)The diffusion of K+ ions out of the cell is impeded by the K+ concentration gradient across the plasma membrane.

D)The diffusion of K+ ions out of the cell is impeded by the electrical gradient across the plasma membrane. The electrochemical gradient is larger for Na+ than for K+.

Answer:

"The concentration gradient and the electro-chemical gradient" describes the driving forces for diffusion of Na+ and K+ ions through their respective channels

Explanation:

The Na ions diffusion inside the cell is facilitated by the concentration gradient of the Na ions which is present across the plasma membrane. Hence, the diffusion of the K ions which is present outside the cell and will be impeded due to the electrical gradient which is present near the plasma membrane. Thus, the electro-chemical gradient is greater as compared to the Na ion than that of the K ion.

Rhea has a balloon that contains 0.5 mole of helium. how many particles of helium are in the balloon?

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Answer:

$\boxed{3 * 10^(23)}$

Explanation:

1 mol of helium contains 6.022 × 10²³ atoms

$\text{Atoms of He} =\text{0.5 mol He} * \frac{ 6.022 * 10^(23) \text{ atoms He}}{\text{1 mol He}}= 3 * 10^(23) \text{ atoms He}$

The balloon contains $\boxed{3 * 10^(23) \text{ atoms of He}}$ .

69.253 helium particles are in the balloon.

What is helium particles?

Helium is composed of two electrons bound by the electromagnetic force to a nucleus containing two protons along with either one or two neutrons, depending on the isotope, held together by the strong force. Unlike for hydrogen, a closed-form solution to the Schrodinger equation for the helium atom has not been found.

A helium atom is an atom of the chemical element helium. Helium is composed of two electrons bound by the electromagnetic force to a nucleus containing two protons along with either one or two neutrons, depending on the isotope, held together by the strong force. Unlike for hydrogen, a closed-form solution.

Helium is the element which you can find on the upper right side of the periodic table with atomic number 2. It comes first amongst the family of the noble gases. Helium falls under inert gas since its outermost electron orbital is full with two electrons.

The answer is 69.253.

Learn more about helium, refer:

brainly.com/question/25306199

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Which of the following likely formed Mars' moons?

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Asteroids that got caught in it's gravitational pull

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The value of Ka in water at 25 °C for propionic acid (C2H5CO2H) is 3.4 x 10-5 M. What is the pH of a 0.020 M aqueous solution of propionic acid?

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