Explanation:
The volume of the copper block is:
The density of copper is 8.96 g/cm³
So the mass of the copper block is
or 126.44352 kg.
Answer:
Container A is a solution and Container B is a colloid.
Explanation:
Container A is a solution as the tyndall efffect is not present. You cannot see the light bean through the glass.
Container B is a suspension or a colloid as you can see the beam through the glass.
The first option proposes Container A is a colloid...this is not correct
The third option is not true as the tyndall effect is only displayed in container B
The fourth option is not correct the tyndall effect is not present in container A meaning it would not be a suspension or a colloid and you can see the tyndall effect in container B indicating its not a solution
1. Mg + CuSO4 —> MgSO4 + Cu
=> Single displacement reaction
2. 2HCI + Mg(OH)2 —> MgCI2 + H2O
=> Acid - base reaction
3.AgNO3 + NaCI —> AgCI + NaNO3
=> Double displacement reaction
Answer:
0.7556 mol
Explanation:
each mole has 6.022 X 10²³ particles (our particles are molecules in this situation)
(4.55 X 10²³)/(6.022 X 10²³) = 4.55/6.022 = 0.7556
