Answer:
Thermometer A, because it measures accurately to the tenths digit.
The temperature of a substance is related to the speed of the substance's particles. So, when the temperature of a substance changes,the speed of the particles also changes. So B.
Answer:
Br^-1
Explanation:
It is an ion that gained an extra electron making it 36 electrons but the other. one is in the neutral state with 35 electrons
The answer is A.
A pure substance is pure, so it cannot be separated in most cases.
Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
