A news from a daily is given below. Answer the following questions on the basis of it.

Rivers get contaminated

The Water in rivers of Kerala has become unsuitable for washing and bathing which is a cause of great
concern and worry for people. It is noticed during the past few days that soap doesn’t lather with water. It
might be due to the presence of some dissolved substances in water. An immediate attention of authorities into the matter has been requested.

 By what name is the present condition of water in the rivers of Kerala known as?

 When a sample of water was used after boiling, soap gave lather readily. By what name is this type of water known as?

 If soap doesn’t lather with water even after boiling, then by
what name is this type of water known as?

 What is the cause of such conditions of water?

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Straightforward questions answered in the powerpoint slidesreaction: heating the starting materials under refluxwhat does it mean to heat under reflux? why do we choose water as the reflux solvent? what are boiling chips used for? why do we put a condenser on top of the reaction? why do we add heat and let the reaction stir for 30 minutes? why do we add sulfuric acid to the reaction after it cools as opposed to when it’s still hot? separation: filtration of precipitatewhy don’t we do an aqueous and organic extraction in the separatory funnel? why do you rinse the salicylic acid on the filter with ice cold water? purification: recrystallization of salicylic acid (no hot filtration needed)what is the difference in the amount of room temperature water vs. boiling water needed to dissolve the salicylic acid (assume a 1.2 gram yield of salicylic acid)? remember, in the lab if you need x ml of boiling water to dissolve a solid, then you should add a little more (definitely no more than 1.5 times the theoretical amount) to ensure it doesn’t recrystallize prematurely.analysis: melting point of salicylic acidwhat can you conclude if the melting point of the salicylic acid you just synthesized is 152-155oc and the 1: 1 mix of your product and “synthetic” salicylic acid is 151-154oc?

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions