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lidiya [134]
3 years ago
10

When a substance was dissolved in water, the temperature of the water increased. This process is described as

Chemistry
1 answer:
NemiM [27]3 years ago
3 0
The correct answer will be A
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The ionization constant for water (kw) is 9.311 × 10−14 at 60 °c. calculate [h3o+], [oh−], ph, and poh for pure water at 60 °c.
Sonbull [250]

As,

Kw = [H+] [OH-]

For water, [H+] = [OH-]

Therefore we can write

Kw = [H+]²

9.311 × 10-14 = [H+]²

[H+] = 3.04 × 10-7 = [OH-]

Ph = - log [H+]

= - log ( 3.04 × 10-7)

= 6.52

Thus, Ph = PoH = 6.52

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3 years ago
HELP PLLZZZ
Scorpion4ik [409]

Answer:

Abrasion

Explanation:

Here's an example, strong winds on a beach where some rocks are cause the sand to rub against the rocks, causing heat and eventually crack and destroy the rock. The ice of glaciers can also break down rocks when rocks are frozen inside it, and that's cooling.

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2 years ago
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Which function do cheetahs serve in temperate grassland?
Nina [5.8K]
This answer would be primary consumers
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3 years ago
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sanitary pads and diapers contain higher phthalate contents than those in common commercial plastic products
Vitek1552 [10]

The correct answer is because sanitary pads and diapers are in direct contact with external genitalia for an extended period of time, a significant amount of VOCs or phthalates may be absorbed into the reproductive system.

Sanitary pads and diapers are made of synthetic plastic materials that can leach into the environment when used. The amounts of volatile organic compounds (VOCs) (methylene chloride, toluene, and xylene) and phthalates (DBP, DEHP, DEP, and BBP) found in sanitary pads and diapers were measured in this study. VOC and phthalate concentrations in sanitary pads varied by 5,900 and 130 times, respectively. VOC and phthalate concentrations in diapers varied by three and sixty-three times between brands. The VOC concentrations in sanitary pads and diapers were comparable to those in residential air. However, sanitary pads and diapers had significantly higher phthalate concentrations than common commercial plastic products.

Learn more about phthalate content here :-

brainly.com/question/22278201

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2 years ago
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