The smallest mass among the choices is Choice (ii):2.3 x 10-3 μg
This is so because, the prefix μ signifies a factor of 10^-6.
For choice I:
- 23 cg means 23 centigrams
For choice II:
- 2.3 × 10-3 μg means 2.3 × 10-9 grams
For choice III:
- 0.23 mg means 0.23 × 10-3 grams
For choice IV:
- 0.23 grams simply means 0.23grams
For choice V:
- 2.3 × 10-2 kg means 23 grams
Ultimately, Choice II represents the smallest mass.
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1mol—44g/mol
0.10mol—x
x=0.10*44
x=4.4 g
Cans aren't entirely made of tin because of rusting. When scratched(which happens quite frequently to cans) the tin is in more danger of rusting. This is why the cans are coated in a layer of tin rather than the whole can is made of it.
B. Earth’s tilt
Earth’s tilt exposes different parts of the earth to varying degrees of sunlight throughout the year, causing seasons.
