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lys-0071 [83]
3 years ago
8

1. A 205 g sample of H20 at 25.0 °C is heated until the temperature reaches 75.0 °C. How many

Chemistry
1 answer:
Pachacha [2.7K]3 years ago
7 0

Answer:

i really dont know

Explanation:

byeeeeeeeeeeeee

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What will i observe when i bring the elrctro magnet near to some aluminum clips?
Llana [10]
Hey mate here is ur ans
Basically, Aluminium is paramagnetic and has a very, very slight attraction to a magentic field. We don't notice it.
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3 years ago
Acetylene, c2h2, has a standard enthalpy of formation, δh° = 226.7 kj/mol, and a standard entropy change for its formation from
VLD [36.1K]
ΔG⁰ = ΔH⁰ - T ΔS⁰

ΔG⁰ : Standard free energy of formation of acetylene

ΔH⁰ : Standard enthalpy of formation (226.7 kJ/mol)

ΔS⁰ : Standard entropy change (58.8 J / K. mol)

T : Temperature 25°C = 298 K (room temperature)

ΔG⁰ = 226.7 - (298 x 58.8 x 10⁻³) = 209.2 kJ /mol
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2 years ago
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An isotope contains 47 protons, 47 electrons, and 60 neutrons. What is the identity ok the isotope.
Gekata [30.6K]

Answer is: the identity of the isotope is silver (Ag-107).

p⁺(isotope) = 47; number of protons in isotope.

Z = p⁺; atomic number.

Atomic number is the number of protons, which is characteristic of a chemical element, silver is an element with atomic number 47.

n°(isotope) = 60; number of neutrons in isotope.

A = p⁺ + n°; mass number is the total number of protons and neutrons in a nucleus.

A = 47 + 60.

A = 107.

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3 years ago
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The moments immediately after the universe began were in some ways similar the
gayaneshka [121]

Answer:

i believe that the answer is D.

Explanation:

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How is the nuclear structure of an atom similar to the nonnuclear structure?
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Nuclear chemistry is the study of reactions that involve changes in nuclear structure. The chapter on atoms, molecules, and ions introduced the basic idea of nuclear structure, that the nucleus of an atom is composed of protons and, with the exception of  

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