1.) thomas wants to measure the temperature change that occurs when sodium hydroxide is dissolved in water.

which is the best tool for this purpose?

a) thermometer
b) barometer
c) manometer
d) micrometer

2.) how many miliseconds (ms) are there in 3.5 seconds (s) ?

a) 35 ms
b) 350 ms
c) 3,500 ms
d) 35,000 ms

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.

        = 3500 milisecond

Thus, there are 3500 ms in 3.5 seconds.

quartz

explanation:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.