Answer:
The answer is
<h2>4.5 × 10²²</h2>
Explanation:
To find the number of atoms of titanium , given it's number of moles we use the formula
<h3>N = n × L</h3>
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
n = 0.075 mol
We have
N = 0.075 × 6.02 × 10²³
We have the final answer as
<h3>4.5 × 10²²</h3>
Hope this helps you
Answer:
(d) Na₂CO₃ + CuSO₄ → Na₂SO₄ + CuCO₃
Explanation:
Chemical reaction:
Na₂CO₃ + CuSO₄ → Na₂SO₄ + CuCO₃
This is metathesis reaction. It is also called double displacement reaction. The cation and anions of both reactants exchange with each others.
The cation (Na⁺) of sodium carbonate is exchange with cation (Cu²⁺) of copper sulfate and form sodium sulfate and copper carbonate.
Double replacement:
It is the reaction in which two compound exchange their ions and form new compounds.
AB + CD → AC + BD
Answer:
A) It tends to increase from top to bottom of a group