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maria [59]
3 years ago
9

How much heat is required to raise the temperature of 50.0g of water 13°C​

Chemistry
1 answer:
N76 [4]3 years ago
3 0

Answer:one gram by 1oC

Explanation: you will need to know the value of water's specific heat

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Answer: melt

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3 years ago
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Se construye una pila galvánica con una barra de cobre sumergida en una disolución 1M de cationes Fe+2 y una barra de plata sume
pashok25 [27]

Answer:

El potencial celular estándar, E_{cell} is +0.46 V

Explanation:

Las reacciones de media célula son;

Media reacción del ánodo Cu²⁺ + 2e⁻ ↔ Cu, E ° = 0.34 V

Media reacción catódica 2Ag + 2e⁻ ⁻ 2Ag, E ° = 0.80 V

Sin embargo tenemos para hierro Fe²⁺ + 2e⁻ ↔ Fe, E ° -0.44 V

y Fe³⁺ + e⁻ ↔ Fe²⁺, E ° = 0.77 V

 que es más alta que la del cobre presente, por lo tanto, el cobre se oxidará en el ánodo

Por lo tanto, en el ánodo, tendremos

Cu → Cu²⁺ + 2e⁻ (E ° = -0.34 V)

En el cátodo

2Ag + 2e⁻ → 2Ag (E ° = 0.80 V)

E_{cell} = E_c + E_a = -0.34 + 0.8 = +0.46 \, V

El potencial celular estándar, E_{cell} = +0.46 V

4 0
3 years ago
How does a foam-filled winter coat help keep a person warm?
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Answer:

It slows down the transfer of thermal energy from outside to inside the coat.

Explanation:

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3 years ago
How many moles are in 213 mg of calcium fluoride, CaF2?
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Answer:

2.73

Explanation:

2.72815277835894

i used an online converter lol it is much faster. if you'd like a step by step guide comment and ill give you one :)

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2 years ago
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A solid calcium metal reacts with molecular oxygen.<br> WORD EQUATION =<br> CHEMICAL EQUATION =
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Word equation - calcium + oxygen -> calcium oxide
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Hope this helps!
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3 years ago
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