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Ilya [14]
3 years ago
11

Is the process by which certain waste materials, such as plastic, glass, aluminum, and paper, are prepared for reuse.

Chemistry
2 answers:
andriy [413]3 years ago
3 0
the process is called recycling.
kolbaska11 [484]3 years ago
3 0

Explanation:

When waste materials are converted into new materials then this process of development of new materials is known as recycling.

This method helps in the prevention of raw materials and it also prevents wastage of many materials.

For example, glass, paper, aluminium etc can be recycled and hence, they can be used again and again.

Therefore, we can conclude that the process by which certain waste materials, such as plastic, glass, aluminum, and paper, are prepared for reuse is known as recycling.

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A covalent bond is formed by the sharing of _______ between atoms, whereas an ionic bond is formed by the _______.
OleMash [197]
Electrons and electrons
7 0
3 years ago
How many grams are in 6.4 moles of so2
maw [93]

6.4mole•64.06g/1mole=409.98g

4 0
2 years ago
In solid NaCl, the equilibrium separation between neighboring Na+ and Cl- ions is 0.283 nm. Calculate the coulombic energy betwe
const2013 [10]

Explanation:

It is given that r = 0.283 nm. As 1 nm = 10^{-9} m.

Hence, 0.283 nm = 0.283 \times 10^{-9} m

  • Formula for coulombic energy is as follows.

             U_{coulomb} = -1.748 \frac{e^{2}}{4 \pi \epsilon_{o} r}

where,   e = 1.6 \times 10^{-19} C

            \epsilon_{o} = 8.85 \times 10^{-12}

          U_{coulomb} = -1.748 \frac{(1.6 \times 10^{-19}^{2}}{4 \times 3.14 \times 8.85 \times 10^{-12} \times 0.283 \times 10^{-9}}

                         = 1.423 \times 10^{-18} J

  • As 1 eV = 1.6 \times 10^{-19} J

So,       1 J = \frac{1 eV}{1.6 \times 10^{-19}}

Hence,    U = \frac{1.423 \times 10^{-18} J}{1.6 \times 10^{-19} J}

                   = 8.9 eV

  • Also,   1 J = \frac{10^{-3} kJ}{6.022 \times 10^{23}mol}

                = 1.67 \times 10^{-27} kJ/mol

Therefore, U = 1.423 \times 10^{-18} J \times 1.67 \times 10^{-27} kJ/mol

                     = 2.37 \times 10^{-45} kJ/mol

7 0
3 years ago
Simply parmanent tissue bibliography please help it's for my project ​
daser333 [38]

Answer:

Do your project by yourself

6 0
2 years ago
Sum of brother and sisters age is 26. Four times the brothers age is subtracted from three times the sisters age, the difference
lana66690 [7]

Answer : The ages of the brother and sister are, 10 and 16 years respectively.

Solution :

Let the age of brother be 'x' and the age of sister be 'y'

There are two equations formed which are,

x + y = 26      ..........(1)

3y - 4x = 8     ..........(2)

First we have to multiple equation (1) by 4 and then added equation (1) and (2), we get the value of 'y'.

4x+4y+3y-4x=8+26\\\\7y=112\\\\y=16

Now put the value of 'y' in equation (2), we get the value of 'x'

3(16) - 4x = 8

4x = 40

x = 10

The age of brother = x = 10 years

The age of sister = y = 16 years

Therefore, the ages of the brother and sister are, 10 and 16 years respectively.

3 0
3 years ago
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