Answer: Mass number
If you look at the periodic table, you can simply find the mass number either on the top or bottom of the element.
The minimum volume of water needed is 0.28 mL. The solution will have
1.7 mg of phthalic acid remaining in solution.
<em>At 100 °C</em>
Volume of water required = 50 mg HPh × (100 mL water/18 000 mg HPh)
= 0.28 mL water
<em>At 25 °C
</em>
Mass of HPh in solution = 0.28 mL water × (620 mg HPh/100 mg water)
= 1.7 mg HPh
Answer:
True
Explanation:
Because electrons go in different paths they can be a wavy type of path and they have particle like properties too because they are small and then they can be in string like forms too.
<span>J. J. Thomson discovered a negatively charged particles called electrons during those experiments. </span>
A. the nucleus carries a positive charge, and the electron cloud carries a negatuve charge. since neutrons carry no charge, the nucleus composed of neutrons and protons carry a positive charge.
