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abruzzese [7]
3 years ago
14

Salt and water are the general products of which type of reaction?

Chemistry
2 answers:
Sauron [17]3 years ago
5 0

Answer:

Acid Base

Explanation:

Acid base reactions produce water by combining H+ from acids and  OH- from bases and the remaining spectator ions form salts

kari74 [83]3 years ago
5 0

Answer:

Acid-based

Explanation:

Acid base reactions produce water by combining H+ from acids and  OH- from bases and the remaining spectator ions form salts

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What two terms are used to describe the temperature at which solids and liquids of the same substance exist at the same time?
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Explanation:

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A cylinder contains 250 g of Helium at 200 K. The external pressure is constant at 1 atm. The temperature of the system is raise
Black_prince [1.1K]

Answer:

There is 96200 J or 96 kJ of heat released.

Explanation:

<u>Step 1: </u>Data given

Mass of helium = 250 grams

Temperature = 200 K

Temperature is raised by 74 K

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Molecular weight for helium = 4 g/mol

<u>Step 2:</u> Calculate moles of Helium

Moles of Helium = mass of Helium / molar mass of helium

Moles of helium = 250 grams / 4g/mol

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<u>Step 3:</u> Calculate heat

Q = n*c*ΔT  or

⇒ with Q = the heat released in Joule

⇒ with n = moles of helium = 62.5 moles

⇒ with c = the heat capacity of helium = 20.8 J/mol*K

⇒ with ΔT = the change in temperature = T2 - T1 = 74 K

Q = 62.5 mol * 20.8 J/mol*K * 74 K

Q = 96200 J = 96 kJ

Since the temperature is raised, this is an exothermic reaction. The heat is released.

There is 96200 J or 96 kJ of heat released.

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