46 What occurs at one of the electrodes in both an electrolytic cell and a voltaic ccl1?( I) Oxidation occurs as electrons arc gained at the cathode.
(2) Oxidation occurs as electrons are lost at the anode.(3) Reduction occurs as electrons are gained at the anode.
(4) Reduction occurs as electrons are lost at the cathode.

Answers

Answer 1

Answer:

Oxidation occurs as electrons are lost at the anode at one of the electrodes in both an electrolytic cell and a voltaic cell. The answer is number 2. The rest of the choices does not answer the question given above.

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The volume of a helium balloon is 2.6 L. What is this volume in cmL 1dm3)26. cm2.6 x 103 cm30.26 cm2.6 x 102 cm32.6 x 104 cm

Find the molarity of the following solutions: 0.5 moles of sodium chloride is dissolved to make 0.05 liters of solution.

Answers

M(molarity)=moles/volume
M=.5mol/.05L=10M

There are 12 inches (in). in 1 foot (ft). which expression can be used to find the number of inches in 2.5 feet?

Answers

Given:
12 inches in 1 foot
number of inches in 2.5 feet

2.5 feet * 12 inches/1foot = 2.5 * 12 inches = 30 inches

1 foot + 1 foot + 0.5 foot = 2.5 feet
12 inches + 12 inches + 6 inches = 30 inches

12 inches : 1 foot = x : 2.5 feet
12 inches * 2.5 feet = x*1foot
30 inches * feet = x * foot
30 inches = x

Answer:

A: $2.5ft*(12in)/(1ft)$

Explanation:

In Edge2020

Which of the following does NOT correctly describe the kinetic molecular theory? Collisions between gas particles are inelastic.Gas particles are small and spherical with an insignificant volume.
During collisions between two gas particles, kinetic energy is transferred without any loss.
The motion of gas particles is constant and random.

Answers

Answer: Collisions between gas particles are inelastic.

Explanation: Kinetic Molecular Theory explains the basic relation between the temperature and the speed of the gaseous molecule . From this theory itself, ideal gas equation was born.

the incorrect postulates among the given is that the 'Collisions between gas particles are inelastic' because during collision, the gas molecules collide with one another as well as with the walls of the container .

Thus there is no loss of kinetic energy in the collision phenomenon .

It is also correctly given that Gas particles are small and spherical with an insignificant volume and the motion of gas particles is constant and random.

Collisions between gas particles are inelastic. - A

The collisions in a gas are assumed to be perfectly elastic

Plz help me i need to know how to do this!!!

Answers

Equivalent conversions:

1 atm = 760 mm Hg = 101.325 kPa

Dalton’s law is presented inthis formula, P = p1 + p2 + … +pn where p1, p2 to pn are the pressures of theindividual gases and the P is the total pressure.

Let p1 = CO2, p2 = O2 and p3 =N2

p1 = 125mmHg (1 atm/760 mmHg) =0.1645 atm

p2 = 22 kPa (1 atm/101.325 mmHg)= 0.2171 atm

P = p1 + p2 + p3

1.5atm = 0.1645 atm + 0.2171 atm+ p3

p3 = N2 = 1.1184 atm

Whats another name for cytosol

Answers

Another name for cytosol is cytoplasmic matrix. This is the liquid that is found in the cells. It is how the organelles are suspended within the cell.

Another name for cytosol is cytoplasmic matrix. This fluid can be found inside cells. It has to do with how the cell's organelles are held in suspension.

Numerous crucial metabolic processes occur in the cytosol, which also serves as a conduit for the movement of chemicals and ions throughout the cell. It offers a dynamic setting that supports the cellular machinery and enhances the cell's overall functionality. The term "cytoplasmic matrix" refers to the fluid-like substance (cytosol) that provides the cytoplasmic organelles and molecules with their structural support.

To know more about cytosol, here:

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Positrons are spontaneously emitted from the nuclei of(1) potassium-37 (3) nitrogen-16
(2) radium-226 (4) thorium-232

Answers

Answer: Option (1) is the correct answer.

Explanation:

A positron is a small particle which contains a +1 charge and its mass is equal to the mass of an electron, that is, $9.109 * 10^(-31)$ kg.

A positron is represent by the symbol $^(0)_(+1)\beta$ .

For example, $^(37)_(19)K \rightarrow ^(37)_(18)Ar + ^(0)_(+1)\beta$

Whereas nitrogen-16 does not decay to give a positron because nitrogen-16 is the daughter isotope formed due to decay of oxygen-16.

The decay reaction is as follows.

$^(16)_(8)O \rightarrow ^(16)_(7)N + ^(0)_(+1)\beta$

And, on radioactive decay of thorium-232 there will be formation of radium-228 along with emission of an alpha particle.

The reaction will be as follows.

$^(232)_(90)Th \rightarrow ^(228)_(88)Ra + ^(4)_(2)\alpha$

Therefore, we can conclude that out of the given options positrons are spontaneously emitted from the nuclei of potassium-37.

Positrons are spontaneously emitted from the nuclei of potassium -37.

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