Which of the following contains the smallest amount of matter?

a. 25 g
b. 2.5 hg
c. 2,500 dg
d. 0.25 kg

The correct answer is option A.

Explanation:

The metric units are in the following order:

1 Kilogram (kg) = 1000 g

Hectogram (hg) = 100 g

Decagram (dag) = 10 g

gram (g) =  1 g

decigram (dg) = 0.1 g

centigram (cg) =0.01 g

milligram (mg) = 0.001 g

A) 25 g = 25 g

B) 2.5 hg = 2.5 × 100 = 250 g

C) 2,500 dg = 2,500 × 0.1 g=250 g

D) 0.25 kg = 0.25 × 1000 g = 250 g

250 g = 250 g = 250 > 25 g

The smallest amount of matter is 25 g.

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the answer would be b i believe