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ad-work [718]
3 years ago
11

Define ""green chemistry"" and ""ecological footprints"".

Chemistry
1 answer:
Effectus [21]3 years ago
5 0

Explanation:

Green chemistry

It is the process of designing a chemical compound via reducing or eliminating the use or generation of the hazardous substances .

It is a eco - friendly method , which does not harm the nature .

Ecological footprints

It is the tool to measure the demand of humans on nature , the quantity of nature humans require to support economy .

It tracks the demand of the humans via ecological accounting system .

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In a closed system, how will a decrease in pressure affect the following reaction: 2A(g) +2B(g) ⇌ 2C(g) + 2D(g)?
DochEvi [55]

As number of gaseous moles in reactant and prodict are same that is 4

So No change will occur

3 0
3 years ago
Read 2 more answers
Describe the range of the radii of most atoms
andriy [413]
The radii of most atoms are actually measured in the Ǻ, or Angstrom. We can do it in nanometers too, however. 
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8 0
4 years ago
A sample of water with a mass of 622.7g undergoes a temperature change from 90.98°C
Dovator [93]

Answer:

C) Q = 14888.5 J

Explanation:

  • Q = mCΔT

∴ m H2O = 622.7 g

∴ <em>C</em> H2O = 4.18 J/g°C

∴ ΔT= 96.7°C - 90.98°C = 5.72°C

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6 0
4 years ago
Cesium metal is frequently used in photoelectric cells because the amount of energy necessary to eject electrons from a cesium s
dybincka [34]

Answer:

Wavelength of light in (nm) = 579 nm

Explanation:

At first you find out the amount of energy needed to just eject one electron. This is given by \frac{Energy}{Avogadro's number}

this energy is given in question in kj/mole. This \frac{Energy}{Avogadro's number} is the work function of cesium for each electron is equal to the planc'k  einstein equation.

8 0
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INTERNIAOL RECTLEIMUM
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