Question

the symbol of an unprefixed scientific unit has been left off of each measurement in the table below. fill in the missing unit symbols. note: by \scientific\ unit we mean the si unit, or unit approved for use with the si, that is most often used by chemists for each measurement. the mass of an apple = 250. how long a typical tv ad lasts = 30. the width of a two - lane road = 10. the volume of gas in a car’s full gas tank = 50.

Explanation:

Step1: Mass of an apple

The mass of an apple is typically measured in grams (g). 250 grams is a reasonable mass for an apple.

Step2: Duration of a TV ad

Time is measured in seconds (s) for short durations. A typical TV ad lasts around 30 seconds.

Step3: Width of a two - lane road

Length (width is a type of length) for road widths is often measured in meters (m). A two - lane road width of 10 meters is reasonable.

Step4: Volume of a car's gas tank

Volume of a gas tank is measured in liters (L). A car's full gas tank volume of 50 liters is a common value.

Answer:

• the mass of an apple = 250 g
• how long a typical TV ad lasts = 30 s
• the width of a two - lane road = 10 m
• the volume of gas in a car’s full gas tank = 50 L