I think the correct answer from the choices listed above is option B. <span>24 mL of Mg burn in 32 mL O2 to produce 56 mL of MgO </span>does not show the law of conservation of mass. Volumes cannot be added because there are volume effects when you add different substances. So, the reactants is not equal to the product.
<span>If it is known that at 60 °C and 745 torr UF₆ is present only as a gas then we can make the assumption that:
</span>(n/V) = P/RT = (745 torr)/(62.36 L-torr/mol•K)(337 K) = 0.0354 mol/L
Therefore the density will be:
<span>
Density = (352.02 g/mol)(0.0354 mol/L)/(1000 cm³/L) = 0.0125 g/cm³
</span>
The density of the object is 0.467 36 g/cm³.
The mass of the object is 389.27 g.
The volume of the object is 832.92 cm³.
Density = mass/volume = 389.27 g/832.92 cm³ = 0.467 36 g/cm³
Answer:
<h3>example:</h3><h3>meaning of the blank you need to do complete the words</h3>
Explanation:
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