3 years ago

Please somone help me with a chemistry question brainliest to whoever answers correctly and 20 points

1 answer:

6 0

523.15

brainliest please

I answerd

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muminat

Answer:

I don't get the question

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3 years ago

Bess [88]

Answer:

I think its E. iron and iron oxide have the same properties if it's not e its d for sure

Explanation:

iron + oxygen → iron oxide. 4 Fe + 3 O2 → 2 Fe2O.

8 0

3 years ago

Viktor [21]

Does this one help or do you need a different one?

3 0

4 years ago

Jet001 [13]

All. It depends on the lab setup, equipment, and expertise.

7 0

4 years ago

avanturin [10]

Answer:

1200 J/K

Explanation:

The formula for the entropy associated with a reversible phase change is

$\Delta S= \dfrac{q_{\text{rev}}}{T}$

1. Calculate q

For a reversible phase change like melting,

$q_{\text{rev}} = m\Delta_{\text{fus}}H = \text{1000 g} \times \dfrac{\text{334 J}}{\text{1 g}} = \text{334 000 J}$

2. Calculate ΔS

$\Delta S = \dfrac{q_{\text{rev}}}{T} =\dfrac{\text{334 000 J}}{\text{273.15 K}} = \textbf{1200 J/K}$

3 0

3 years ago