Question

Can anyone answer this with explanation ASAP!!..

Answer 1

Answer:

Write the chemical equation when:

(i) Dilute hydrochloric acid is added to solid Sodium Carbonate.

(ii) Quicklime is treated with Water.

(iii) Sodium chloride solution is added to Lead Nitrate solution.

Step-by-step explanation:

Answer 2

Answer:

angleAOB=90°=angleAOD

THEREFORE, SUM OF ALL ANGLE OF TRIANGLE IS BAC=180°,

THEREFORE, angleABO+ angleAOB + angleOAB=180°,

180°=30°+90°+x

180°-120°=x,

60°=x=angleBAC

THERFORE, angleBAD=60°+40°=100°