\( \text{Use density }=\dfrac{\text{mass}}{\text{volume}}\text{. Substitute } m=27\text{ g and } V=10\text{ cm}^3. \)
Question 25:
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\[ \begin{array}{l} \text{A piece of glass has a mass of 27g and a volume of 10} cm^3. \\ \rule{0pt}{0.5cm} \\ \text{Work out the density of the piece of glass.} \end{array} \]
Answer:\( 2.7\text{ g/cm}^3 \)
Explanation:
\begin{aligned} &\text{Use the formula } \text{Density} = \dfrac{\text{Mass}}{\text{Volume}}. \\ &\text{Given mass }=27\text{ g and volume }=10\text{ cm}^3, \\ &\text{Density }= \dfrac{27}{10} = 2.7\text{ g/cm}^3. \end{aligned}