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liberstina [14]

3 years ago

10

PS.

1 answer:

Scrat [10]3 years ago

6 0

The anwser is A thank you

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What produces the magnetic force of an electromagnet?

bagirrra123 [75]

Answer:

movement of charged particles through the wire .

Explanation:

When electricity is passed through the wire of electromagnet , moving electrons of the wire produces magnetic field . This magnetic field in increased due to high permeability of soft iron of the electromagnet . It is this magnetic field which creates magnetic force .

6 0

3 years ago

On a mission to a newly discovered planet, an astronaut finds chlorine abundances of 13.85 % for 35Cl and 86.15 % for 37Cl. What

topjm [15]

Answer : The atomic mass of chlorine is, 36.723 amu

Explanation :

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$

As we are given that,

Mass of 35-Cl isotope = 35 amu

Percentage abundance of 35-Cl isotope = 13.85 %

Fractional abundance of 35-Cl isotope = 0.1385

Mass of 37-Cl isotope = 37 amu

Percentage abundance of 37-Cl isotope = 86.15 %

Fractional abundance of 37-Cl isotope = 0.8615

Now put all the given values in above formula, we get:

$\text{Average atomic mass }=[(35\times 0.1385)+(37\times 0.8615)]$

$\text{Average atomic mass }=36.723amu$

Therefore, the atomic mass of chlorine is, 36.723 amu

6 0

4 years ago

What is the molecular description of diffusion

Ulleksa [173]

Diffusion if the movement of small molecules across the cell membrane.

Kinetic energy of the molecules results in random motion, causing diffusion.

5 0

3 years ago

2) Gay-Lussac's law shows a direct relationship between temperature and

shusha [124]

Answer:

The correct option is (b) "pressure".

Explanation:

Gay-Lussac's law states that the pressure of an ideal gas is directly proportional to its temperature at constant mass and volume.

Mathematically, Gay-Lussac's law is as follows :

$P=kT$

or

$\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}$

Hence, the correct option is (b) "pressure".

4 0

3 years ago

Do chemical Reactions occur in the mouth?

Fynjy0 [20]

Answer:

yes

Explanation:

Your saliva is considered a chemical compound that helps you break down food.

6 0

3 years ago