Chemical reaction: Pb(NO₃)₂(aq) + 2KI(aq) → PbI₂(s) + 2KNO₃(aq).
aq(<span>aqueous)
means dissolved in water.
s(solid) means that salt (in this reaction </span>PbI₂) not dissolved in water.
This chemical reaction is double displacement reaction - cations (Pb²⁺ and K⁺) and anions (NO₃⁻ and I⁻) <span>of the two reactants switch places and form two new compounds.</span>
We use the following formula for calculating the density:
p = m/v
Where:
m = mass
v = volume
So, we have:
p = 46 /5
p = 9,2 g/cm³
A steel spoon would be the best I believe.
I’m confused on the question?
To answer this item what needs to be done is to write the correct and balanced chemical reaction as below.
2AlCl3 + 3Br2 --> 2AlBr3 + 3Cl2
From the chemical reaction above, we can say that every 2 moles of AlCl3 will produce 3 moles of Cl2. Thus, the answer is 2:3.
