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3 years ago

Explain what occurs in photgraphy reaction???

Chemistry

2 answers:

zimovet [89]3 years ago

8 0

Answer:

when exposed to like a chemical reaction darkens the film to produce an image.

Explanation:

When exposed to light, a chemical reaction darkens the film to produce an image. ... When film containing Ag+ and Cl- is exposed to light energy, the chlorine ion's extra electron is ejected and then captured by a silver ion.

White raven [17]3 years ago

7 0

Answer:

Explanation:. A photograph is an image made by a photo-chemical reaction which records the impression of light on a surface coated with silver atoms. The reaction is possible due to the light-sensitive properties of silver halide crystals.

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Please help asap!!!!!!!

Slav-nsk [51]

Answer:

Explanation:

Power is measured in Watts, and can we calculated by taking the work done in joules / the time in seconds. Thus, 1 Watt is 1 joule per 1 second (1 Watt = 1J/s)

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2 years ago

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Which one is often used in magnets gold or cobalt?

tangare [24]

Cobalt is often used because it react to magnets while gold does not react to magnets.

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3 years ago

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what volume will it occupied 40 degrees celsius a gas sample was collected when a temperature is 27 degrees celsius and the volu

love history [14]

T_1=27°C
T_2=40°C
V_1=1L
V_2=?

Using Charles law

$\boxed{\sf \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}}$

$\\ \sf\longmapsto V_1T_2=V_2T_1$

$\\ \sf\longmapsto 1(40)=27V_2$

$\\ \sf\longmapsto V_2=\dfrac{40}{27}$

$\\ \sf\longmapsto V_2=1.48\ell$

7 0

3 years ago

Use VSEPR theory to predict the molecular

sergey [27]

Answer:

1. trigonal-planar

Explanation:

NO3- (nitrate) has three domains around it and each oxygen pushes against each other creating a planar structure.

4 0

2 years ago

Calculate the percent by mass of water is Copper (II) Fluoride tetra hydrate. You must show all of your work to earn credit. Ato

lara [203]

Answer:

41.4%

Explanation:

The salt copper II fluoride tetrahydrate is a hydrated salt. A hydrated salt is a salt that has some molecules of water of crystalization attached to its structure. The formula of the salt is CuF2.4H2O

The first step is to calculate the molecular mass of the compound as follows

[64 + 2(19) + 4((2×1) + 16)] = [64 + 38 + 72]= 174gmol-1

Mass of water of crystallization= 4((2×1) + 16) = 72 g

Percentage by mass of water of crystallization= 72 / 174 ×100

Percentage by mass of water if crystalization = 41.4%

5 0

3 years ago