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2 years ago

Write your question here (Keep it simple and clear to get the best answer)what are the different types of bleaching agent's

1 answer:

6 0

Generally there are two kinds of bleaching agents, notably chlorine (and many chlorine compounds such as sodium hypochlorite) and peroxygen bleaching agents (such as hydrogen peroxide). This isn't to say there aren't others, because there are, such as ammonia. (Note, mixing traditional bleaches and ammonia is very dangerous)

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Is a ph = 7.00 solution acidic, basic, or neutral at 37 °c?

rosijanka [135]

I think it is neutral

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2 years ago

Why do atoms form blonds

lakkis [162]

Answer:

Atoms form chemical bonds to make their outer electron shells more stable. ... An ionic bond, where one atom essentially donates an electron to another, forms when one atom becomes stable by losing its outer electrons and the other atoms become stable (usually by filling its valence shell) by gaining the electrons.

Explanation:

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2 years ago

4. Which of the following NOT TRUE about real gas

Semenov [28]

Answer:

The answer is D.

Explanation:

Intermolecular force are negligible

When the distance between molecules decrease,

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1 year ago

C. 840 D. 2053...........

faust18 [17]

They have hydrogens numbers wrong its 1.008 not 1.01

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3 years ago

How much heat is required to change 100 g of ice (H2O) at 253 K to vapor (steam) at 393 K?

soldier1979 [14.2K]

<u>Answer:</u> The heat required will be 58.604 kJ.

<u>Explanation: </u>

To calculate the amount of heat required, we use the formula:

$Q= m\times c\times \Delta T$

Q= heat gained or absorbed = ? J

m = mass of the substance = 100 g

c = heat capacity of water = 4.186 J/g ° C

Putting values in above equation, we get:

$\Delta T={\text{Change in temperature}}=(393-253)K=140K=140^oC$

$Q=100g\times 4.186J/g^oC\times 140^oC$

Q = 58604 Joules = 58.604 kJ (Conversion factor: 1 kJ = 1000J)

Thus, heat released by 100 grams of ice is 58.604kJ.

3 0

3 years ago