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tensa zangetsu [6.8K]
3 years ago
6

What is the pH of a neutral solution at 25°C? 7 1

Chemistry
1 answer:
Kaylis [27]3 years ago
8 0

Answer:

I pretty sure it's the pH level 7

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Which substance represents a compound?(1) C(s) (3) CO(g)(2) Co(s) (4) O2(g)
Andrei [34K]
C = Carbon
CO = Carbon Monoxide
Co = Cobalt
O2 = Oxygen

So the answer is (3) CO
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What is the new volume if a piston starts at 25ml and 900 mm Hg and the pressure decreases to 750 mm Hg?
Oliga [24]

Answer:

I screenshot and expained here

https://screenshot.best/A7QIKV.lnk

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Read the information about the halogen family.
Elodia [21]

Answer:

See explanation

Explanation:

Chlorine is a member of the halogen family known as a toxic yellowish green gas. Inhalation of chlorine for a prolonged period of time leads to  pulmonary edema. If a person comes in contact with compressed liquid chlorine the person may experience frostbite of the skin and eyes.

However chlorine is very useful in water disinfection and is preferred in water treatment because it provides residual disinfection of the treated water.

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3 years ago
Heat and pressure deep in the earth change shale to slate. Why does this happen?
dedylja [7]

Answer:

Because of the ground above and the molten iron core.

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below left is a cylinder containing water. an ball with a mass of 21g and a volume of 15 cm3 is lowered into the water. sketch t
anyanavicka [17]

You didn’t show the cylinder containing water, so I created one that you can use as a model (see image).

The water level was originally at 37 mL.

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Volume of ball = volume of displaced water = 52 mL – 37 mL = 15 mL.

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3 years ago
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