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3 years ago

15

Sodium metal is placed in water to produce sodium hydroxide (NaOH)

1 answer:

soldi70 [24.7K]3 years ago

6 0

Answer:

a Sodium

Explanation:

The solid in this reaction is the sodium metal. A solid is a substance held together by attractive forces that are very strong.

Solids have a fixed shape and volume.

Metals are solids
Sodium is an alkali metal belonging to the first group on the periodic table.
This solid combines with the liquid water.
The product is an aqueous sodium hydroxide.

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<h3>25.0 grams is the mass of the steel bar.</h3>

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On substituting all values:

$(m_1\times 0.452 J/g^oC\times (21.50^o-2.00^oC))=-(105 g\times 4.18 J/g^oC\times (21.50^o-22.00^o))\\\\m_1*8.7914=241.395\\\\m_1=\frac{219.45}{8.7914} \\\\m_1=24.9\\\\ \approx25 \texttt {grams}$

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Answer:

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Explanation:

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