Based on Arrhenius theory, explain why CaCI2(aq) can be considered a neutral solution rather than an acidic solution or a basic solution?

Another question is in an experiment ammonia has, NH3(aq) reacted with the water to form the aqueous ammonia ions, NH4+(aq). When red litmus paper was placed in contact with the aqueous solution the paper turned blue. This indicated a basic solution.

a. Identify the acid and the base in the reaction between dissolved ammonia gas, Nh3(aq) and water. Explain your answer

B. Identify the conjugate acid and the conjugate base of the reaction. Explain your answer

C. Write the complete chemical equation for the reaction between NH3(aq) and H2O(I)

Another question is: The oxides is carbon, sultry and nitrogen can be harmful when released into the atmosphere. Why are these oxides so harmful. Give one reason that applies to all these oxides?

a is the correct answer

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph

(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