Answer:
^-3 is the chemical symbol for Thorium
NH3 = water (it is actually a water soluble gas)
C6H14 = CCl4 (C6H14 won't mix with water at all)
Na2S = water (Na2S is a salt. Salts dissolve best in water)
Br2 = CCl4, but it will also dissolve in water.
Answer:
See explanation
Explanation:
The mole refers to the amount of substance contained in 12 g of carbon-12. It was arbitrarily related to the number of elementary entities in 12 g of carbon -12 by Prof. Avogadro.
The number of moles of a substance is obtained as the mass of the substance divided by the mass of one mole of the substance (molar mass). Hence when the number of moles is known, the mass is now;
number of moles * molar mass
Atom : B
Cation : C
Anion : A
<h3>Further explanation</h3>
Given
Pictures for atom, anion, and cation
Required
Classification
Solution
Represent atom : Picture B
Number of protons = number of electrons = 6 = neutral atom
Represent cation : Picture C
Number of protons > number of electrons = 6>5 : charge +1(positive charge)
Represent anionn : Picture A
Number of protons < number of electrons = 5<6 : charge -19negative charge)
