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weqwewe [10]
3 years ago
5

the polio virus is 25 nanometers in diameter. How many would fit across the head of a pin 2 millimeters in diameter

Chemistry
2 answers:
IrinaVladis [17]3 years ago
6 0
2mm=2,000,000 nm
2,000,000/25=80,000
The answer is 80,000 polio viruses
const2013 [10]3 years ago
5 0

Answer:

80,000

Explanation:

First, the diameters of both must be in the same unit. Converting the pinhead diameter from millimeter to nanometer, we get:

2mm = 2*10^6 nm

To get the number of polio viruses that fit at the head of the pin, divide the pin size by the amount of virus in nanometers:

2*10^6 = 2,000,000

2,000,000 / 25 = 80,000

This concludes that 80,000 polio viruses fit the pinhead.

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Una sustancia tiene una masa de 81632 g. Se logró desplazar aplicando un trabajo de 2800 J. Averigüe la distancia que logró move
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2 years ago
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Anna007 [38]

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3 0
2 years ago
write a short paragraph (3-4 sentences) explaining what makes Metallic bonding. Make sure to include how the electrons interact,
bonufazy [111]

Answer:

Metallic bonding may be described as the sharing of free electrons among a lattice of positively charged metal ions. The structure of metallic bonds is very different from that of covalent and ionic bonds. While ionic bonds join metals to nonmetals, and covalent bonds join nonmetals to nonmetals, metallic bonds are responsible for the bonding between metal atoms.

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7 0
3 years ago
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6 0
2 years ago
Read 2 more answers
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