What is the net ionic equation for the reaction between sulfuric acid and potassium hydroxide? a) H_2 SO_4 (aq) + 2 KOH (aq) rightarrow K_2 SO_4 (aq) + 2 HOH (I)
b) 2 H^+ (aq) + 2 OH^- (aq) rightarrow 2 HOH (I) H^+ (aq) + OH^- (aq) rightarrow HOH (I)
c) 2H^+ + SO_4^2- + 2K^+ + 2 OH^- rightarrow 2K^+ + SO_4^2- + 2 HOH
d) 2 K^+ (aq) + SO_4^2- (aq) rightarrow K_2 SO_4 (aq)

it would be d. henry moseley

hope this !

and sorry if i'm late. have a good rest of your day! : d

there are two significant figures.

(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