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svetlana [45]
3 years ago
10

Plz help me it’s being timed

Mathematics
1 answer:
sertanlavr [38]3 years ago
6 0
<h2>⇛ <u>A</u><u>N</u><u>S</u><u>W</u><u>E</u><u>R</u><u> </u>⇚</h2>

<h3>2x - y = 0 </h3><h3>x + y =-3 </h3><h3> is matched with </h3><h3>[ O -1 ] (system determinant)</h3><h3>[ 3 1 ] ( y - determinant )</h3><h3> ( x - determinant )</h3>

<h2>HOPE U UNDERSTOOD !!!!(:</h2>
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Answer:

Para el CO₂ sabemos que:

densidad = 0,001976 g/cm³

Sabemos que:

densidad = masa/volumen

Entonces, si tenemos una masa de 28 g, podemos escribir:

volumen = masa/densidad

volumen = (28g)/(0,001976 g/cm³) = 14,170 cm^3

Para obtener la masa molar (es decir, la masa de un mol de esta sustancia) simplemente sumamos la masa de un mol de cada componente.

Carbono: tiene una masa molar de 12 g/mol

Oxígeno: tiene una masa molar de 16 g/mol (y tenemos dos oxígenos)

entonces la masa molar va a ser:

masa molar = 12g/mol + 2*16g/mol = 44 g/mol

Es decir, un mol de CO₂, pesa 44 gramos.

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3 years ago
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It should be x=5\frac{1}{4}.

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Mr.smith has 238 eggs in the warehouse. He collected all another 122 eggs from his chickens yesterday. As he arranged all the eg
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