Answer:
A,Z,H,Y,T
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Because silver chloride is solid. The most appropriate way for separating solid silver chloride from an aqueous solution is b) Filtration.
The electric force pulls electrons close to the atomic nucleus<span>. The protons in the </span>nucleus<span> have a positive charge, and so attract the negatively charged </span>electrons<span>.</span>
Answer:
A molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule.
Mass of B₂ = 18.75 g
<h3>Further explanation</h3>
Given
Element A and element B
Required
The reaction
mass of B₂
Solution
The balanced equation :
2A(s) + B₂(g) ⇒2AB(s)
mol AB :
= Molarity x Volume
= 2.5 M x 0.25 L
= 0.625
From the equation, mol ratio of B₂ : AB = 1 : 2, so mol B₂ :
= 1/2 x mol AB
= 1/2 x 0.625
= 0.3125
Mass B₂ (Molar mass = 2x30 g/mol=60 g/mol)
= mol x molar mass
= 0.3125 x 60 g/mol
= 18.75 g
