Which of the following is qualitative information?

A. the mineral has a volume of 4cm3
B. the mineral is red and hard
C. the mineral has a mass of 2 grams
D. the mineral has a hardness of 8

B

Explanation:

Quantitative is observable and qualitative is numbers and facts.

Answer/Explanation:

The answer is ( B. the mineral is red and hard.)

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answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

the answer to your question is c