How To Questions & Answers | Page 19

Statement 3 correctly describes the energy during bond formation: Energy is absorbed when bonds are broken, and energy is released when bonds are formed.

A screw decreases the force needed to do work by increasing the distance through which you apply that force, as shown in the formula $\text{Work} = \text{Force} \times \text{Distance}$.

23.5 g of Sb2S3 contain approximately 0.0691 moles, calculated using the formula $\text{Moles} = \frac{23.5 \ \text{g}}{339.70 \ \text{g/mol}}$.

The Roman numerals that multiply to 35 are $V$ and $VII$ because $V \times VII = 35$.

To write the fraction $\frac{28}{40}$ in the simplest form, divide both the numerator and the denominator by their greatest common divisor, which is 4, resulting in $\frac{7}{10}$.

To convert 98.2°F to Celsius, use the formula $\text{Celsius} = \frac{5}{9} \times (98.2 - 32) \approx 36.78°C$.

82°F is approximately $27.78\degree C$.

20 goes into 100 exactly $\frac{100}{20} = 5$ times.