3. Which of the following statements is true for intensive properties? Select all that apply:
A. they can be used to identify the type of matter
B. they are the same for all samples of a type of matter under the same conditions
C. the value is the same for all states of the material
D. every mixture made of the same pure substances has the same intensive properties
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lculating density?

What must occur for air masses to form fronts

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3