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Fiesta28 [93]
3 years ago
13

Fill in the blanks (Balancing chemical reactions)BRAINLIEST

Chemistry
1 answer:
Artemon [7]3 years ago
7 0

\huge{ \mathfrak{  \underline{ Answer \:  \:  ✓ }}}

The 2 in front of Na in 2Na + Cl_2 \rightarrow  2NaCl is <u>Coefficient.</u>

_____________________________

The _2 after Cl_2 in the same equation is <u>sub </u><u>script</u><u>.</u>

_____________________________

There are two atoms of Na in 2NaCl

_____________________________

\mathrm{ \#TeeNForeveR}

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Answer:

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Explanation:

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An intravenous saline drip has 9.8 g of sodium chloride per liter of water. by definition, 1 ml = 1 cm3.
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Missing question: Express the salt concentration in kg/m³.
Answer is: the salt concentration is 9.8 kg/m³.
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4 0
3 years ago
Determine the number of grams of sodium carbonate needed to prepare 100.0 ml of a 2.5 m solution
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Answer:

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Explanation:

First we convert 100.0 mL to L:

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Now we <u>calculate how many moles of sodium carbonate are needed</u>, using the <em>definition of molarity</em>:

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  • 2.5 M * 0.100 L = 0.25 mol

Finally we <u>convert 0.25 moles of sodium carbonate into grams</u>, using its <em>molar mass</em>:

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2 years ago
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Answer: …

Explanation:

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