The answer is;
Flame test is a qualitative test".
Flame test is performed for detecting metals in a compound and metals are detected by the color of the flame, and flame color identifies that which metal is this. so this is a qualitative test, different types of metals shows different color of flames.
Answer: 180 miles x 3 hours = 540
540/2 = 270
270 is the average speed
Step-by-step explanation: