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castortr0y [4]
3 years ago
10

if you were going to invent a new way to power your mobile phone which type of electromatic waves wiuld be most useful to invist

igate
Chemistry
2 answers:
nadya68 [22]3 years ago
3 0

It should be  <em>Ultraviolet rays </em>because they are moderate in energy.


Agata [3.3K]3 years ago
3 0
HLLO THERE

We will use Ultraviolet rays, because they are moderate energy and abundant.

because Gamma rays are harmful .
Radio waves aren't used in a way that a battery would work.

HOPE IT HELPED YOU.
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A 2.0 mL sample of air in a syringe exerts a pressure of 1.02 atm at 22 C. If that syringe is placed into boiling water at 100 C
emmainna [20.7K]

Answer: The new volume of the air in the syringe is 7.3 mL.

Explanation:

Given: V_{1} = 2.0 mL,     P_{1} = 1.02 atm,          T_{1} = 22^{o}C

V_{2} = ?,               P_{2} = 1.27 atm,               T_{2} = 100^{o}C

Formula used to calculate the new volume in syringe is as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}

Substitute the values into above formula as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{1.02 atm \times 2.0 mL}{22^{o}C} = \frac{1.27 atm \times V_{1}}{100^{o}C}\\V_{1} = 7.3 mL

Thus, we can conclude that the new volume of the air in the syringe is 7.3 mL.

6 0
3 years ago
List the number of each type of atom on the right side of the equation hbr(aq)+2naoh(aq)→2nabr(s)+h2o(l)
ser-zykov [4K]

On the basis of the given unbalanced equation, that is:

HBr (aq) + 2NaOH (aq) → 2NaBr (s) + H2O (l)

On the right side of the equation, there are 2 atoms of sodium (Na), 2 atoms of bromine (Br), 2 atoms of hydrogen (H), and 1 atom of oxygen (O₂).

After balancing the equation correctly we get:

HBr (aq) + NaOH (aq) → NaBr (s) + H2O (l)

On the right side, one atom of Na, 1 atom of Br, 1 atom of H and one atom of O₂.

5 0
3 years ago
Read 2 more answers
The average kinetic of a gas remains the same when A. It’s volume is decreased B. It’s tell us decreasedC. It’s tell is increase
skad [1K]

Answer

A. Its volume is decreased

Explanation

If we compress a gas (decrease) without changing its temperature, the average kinetic energy of the gas particles remains the same.

At a constant temperature, the kinetic energy of particles remains the same. If the volume is reduced at a constant temperature, then the number of particles in unit volume or area increases. If there is an increased number of particles in the unit area then it increases the frequency of collisions per unit area.

At constant temperature, the smaller the volume of the container, the larger the pressure.

6 0
1 year ago
Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies
lutik1710 [3]

Geologists have a rule of thumb: when molten rock cools and solidifies, crystals of compounds with the smallest lattice energies appear at the bottom of the mass because of high power of solubility.

<h3>What is lattice energy? </h3>

The lattice energy is defined as the energy change upon the formation of one mole of crystalline ionic compound from its same constituent ions, that are assumed to be initially in the state of gases. It is also defined as measure of the cohesive forces which bind ionic solids together.

As the lattice energy of the ionic compound increase the solubility of that particular compound decrease. Hence compound which have low lattice energy are more soluble than compound having high lattice energy. When molten rocks cools and solidified, the compound having smallest lattice energy become more soluble than crystals of compound which have large lattice energy. Therefore, crystal of compound with the smallest lattice energy start appearing at the bottom of the mass.

Thus, we concluded that due to high solubility power of compound with low lattice energy appear at the bottom of the mass.

learn more about lattice energy:

brainly.com/question/13169815

#SPJ4

4 0
2 years ago
What is the concentration of NaCI in an aqueous solution that contains 0.032 grams of NaCI in 600. Grams of the solution
jolli1 [7]

Answer:

0.00032 Grams of NaCl per 1 gram of the solution

Explanation:

8 0
3 years ago
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