Hydrochloric acid dissolves solid aluminum hydroxide. What is the net ionic equation of this reaction

3 H⁺(aq) + 3 OH⁻(aq) ⇒ 3 H₂O(l)

Explanation:

Let's consider the molecular equation for the neutralization between hydrochloric acid and aluminum hydroxide.

3 HCl(aq) + Al(OH)₃(aq) ⇒ AlCl₃(aq) + 3 H₂O(l)

The complete ionic equation includes all the ions and the molecular compounds.

3 H⁺(aq) + 3 Cl⁻(aq) + Al³⁺(aq) + 3 OH⁻(aq) ⇒ Al³⁺(aq) + 3 Cl⁻(aq) + 3 H₂O(l)

The net ionic equation includes only the ions that participate in the reaction and the molecular compounds.

3 H⁺(aq) + 3 OH⁻(aq) ⇒ 3 H₂O(l)

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied