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3 years ago

Science there’s a picture

Chemistry

1 answer:

melomori [17]3 years ago

4 0

Answer:

Explanation:

seems like the most logical option out of all listed.

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How many grams of lithium are in a 1320 [mAh] cell phone battery? Note that [mAh] is a unit of charge.

AURORKA [14]

Answer:

0.396 grams of lithium

Explanation:

Lithium-ion batteries have the main feature of using lithium salts as a "bridge" between the positive pole (anode) to the negative (cathode) to allow the passage of energy that will give life to our device. In the case of lithium polymer batteries, the difference is that the lithium salt is contained in a polymer, or gel, to keep it safe from spills.

In both cases, when the battery is discharging, lithium ions travel from the cathode to the anode through their "bridges" to supply the energy until all the ions are in the anode, it is at this time when the battery is out of stock The ions travel in the opposite direction during charging (from the anode to the cathode).

The calculation used to determine the amount of lithium that the lithium cell batteries have is as follows:

0.3 x amp hour capacity = g of lithium

where amp hour = Ah

In our case:

0.3 x 1.32 = 0.396 g of lithium

5 0

3 years ago

If you put hydrogen (H1+) and Hydroxide (OH1) together what it’s it called?

Tamiku [17]

Answer:

The hydroxyl ions (OH-) released will combine with any hydrogen ions (H+) in the solution to form water molecules (OH- + H+ = H2O).

Explanation:

3 0

3 years ago

A gas with a volume of 8 L at a temperature of 473K is switched to a new container with a temperature of 350K. If the pressure r

Digiron [165]

Answer:

The new volume is 5.92 L, which is approximately 6 L

Explanation:

As the gas temperature increases, the molecules move faster and take less time to reach the walls of the container. This means that the number of crashes per unit of time will be greater. That is, there will be an increase (for an instant) in the pressure inside the container and the volume will increase.

So Charles's Law is one of the gas laws that relates the volume and temperature of a certain amount of gas at constant pressure and says that:

If the temperature increases the volume increases

If the temperature decreases the volume decreases

Mathematically this is expressed by:

$\frac{V}{T}=k$

When you want to study two different states, an initial and a final one of a gas, this law is expressed by:

$\frac{V1}{T1} =\frac{V2}{T2}$

In this case:

V1: 8 L
T1: 473 K
V2: ?
T2: 350 K

Replacing:

$\frac{8 L}{473K} =\frac{V2}{350K}$

Solving:

$V2=350K*\frac{8L}{473K}$

V2=5.92 L

The new volume is 5.92 L, which is approximately 6 L

5 0

3 years ago

Which sample of copper has atoms with the lowest average kinetic energy?

algol [13]

I believe your answer is 40g 15*C I hope that helps.

4 0

4 years ago

When a material changes state, what happens to the bonds between the molecules?

brilliants [131]

Answer:

When a substance is cooled it's internal energy decreases the movement of its partical decreases the bonds between particles form when a substance condenses or freezes or sublimes to form a solid from a gas 

may be this might help u

6 0

3 years ago