(Solved): Match the correct answers to the correct questions. You read a number off a scale as: \( 39.125 \ma ...

Match the correct answers to the correct questions. You read a number off a scale as: \( 39.125 \mathrm{~g} \). Which number is uncertain? 1. 1 A ruler has markings at each centimeter (ex 1, 2,3) 2. 2 but no tiny marks between the centimeter markings. 3. 3 Which number is uncertain if you write down that an 4. 4 object is \( 1.3 \mathrm{~cm} \) long? Your lab instructions state 5. 5 to use \( 2.14 \mathrm{~mL} \) of water. Which number is uncertain?