Explain each of the following observations using your knowledge of structure and bonding. (i) When heated, iodine, \( \mathrm{I}_{2}(s) \), sublimes (turns from a solid to a gas) at a low temperáture, but high temperatures are needed to melt diamond, \( \mathrm{C}(s) \).

Consider the following value. \[ \mathrm{E} 0 \mathrm{~B} 6_{\text {sixteen }} \] Convert the above value to its equivalent decimal (base 10) representation. E0B6 \( 6_{\text {sixteen }}=\square \)

Convert the temperature, as indicated. Round your answer to hundredths, if appropriate. 7) 370 K , into Celsius 8) \( 45^{\circ} \mathrm{C} \), into Fahrenheit

Suppose the \( f(x)=x^{2}+4 x-1 \) and \( g(x)=2 x-3 \). Find indicated value: \( \quad(g \circ f)(2)= \)

Sebidang tanah berbentuk segi empat tepat mempunyai panjang 25.7 km dan lebar 18 km . Hitung luas tanah itu A rectangular plot of land has length 25.7 km and width 18 km . Calculate the area of the land (i) dalam/ in \( \mathrm{m}^{2} \).

Divide the polynomials. Your answer should be a polynomial. \( \frac{2 x^{3}-5 x^{2}+x}{x}=\square \)