Answer: Best tool for measuring temperature is thermometer.
There are 3500 miliseconds in 3.5 seconds.
Explanation:
Thermometer is a device or tool used to determine the temperature.
Thus, when Thomas wants to measure the temperature change that occurs when sodium hydroxide is dissolved in water then the best tool for this purpose is thermometer.
It is known that there are 1000 miliseconds in one second. Therefore, calculate miliseconds in 3.5 seconds as follows.
[tex]3.5 second \times 1000\frac{milisecond}{second}[/tex] = 3500 milisecond
Thus, there are 3500 ms in 3.5 seconds.