What mass of chlorine is needed for the complete reaction of 30.5 g of NaClO2?

mass of Cl₂ = 11.947 g

The reaction equation is the chemical formula of reagents and product substances  

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation.

Reaction

2NaClO₂(s) + Cl₂(g)⇒2ClO₂(aq)+ 2NaCl(aq)

MW NaClO₂ = 90.45 g/mol

MW Cl₂ = 70.9 g/mol

mol of NaClO₂ :

From equation , mol Cl₂ : mol NaClO₂ = 1 ; 2

mol Cl₂ = 0.337 : 2 = 0.1685

mass Cl₂

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

narendra modi is currently the pm of india

explanation: