Why do you think many metals are good at conducting electricity? Hurry, please!!!

1 answer:

5 0

Answer. Metals are excellent conductors because the atoms in a metal form a matrix through which their outer electrons can move freely. Instead of orbiting their respective metal atoms, they form a "sea" of electrons that surrounds the positively charged atomic nuclei of the interacting metal ions

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In which compound is the percent by mass of oxygen greatest?

Licemer1 [7]

Answer: BeO

Explanation:

percent by mass of oxygen $=\frac{\text {mass of oxygen}}{\text {Total mass of substance}}\times 100\%$

percent by mass of oxygen in BeO $=\frac{16g}{25.01g/mol}\times 100=63.97\%$

percent by mass of oxygen in MgO $=\frac{16g}{40.30g/mol}\times 100=39.70\%$

percent by mass of oxygen in CaO $=\frac{16g}{56.08g/mol}\times 100=28.53\%$

percent by mass of oxygen in SrO $=\frac{16g}{103.62g/mol}\times 100=15.44\%$

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3 years ago

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How many cubic inches are in 1200cc

slega [8]

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3 years ago

11. A certain gas takes three times as long to effuse out

gladu [14]

answer is 36 u 2 one okkkkkkk

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3 years ago

A 4.0 L balloon has a pressure of 406 kPa. When the pressure increases to 2,030 kPa, what is the volume? *

elena-14-01-66 [18.8K]

The new volume when pressure increases to 2,030 kPa is 0.8L

BOYLE'S LAW:

The new volume of a gas can be calculated using Boyle's law equation:

P1V1 = P2V2

Where;

P1 = initial pressure (kPa)
P2 = final pressure (kPa)
V1 = initial volume (L)
V2 = final volume (L)

According to this question, a 4.0 L balloon has a pressure of 406 kPa. When the pressure increases to 2,030 kPa, the volume is calculated as:

406 × 4 = 2030 × V2

1624 = 2030V2

V2 = 1624 ÷ 2030

V2 = 0.8L

Therefore, the new volume when pressure increases to 2,030 kPa is 0.8L.

Learn more about Boyle's law calculations at: brainly.com/question/1437490?referrer=searchResults

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3 years ago

Difference between proton and oxygen.

Zielflug [23.3K]

Answer:

Proton is a sub atomic particle while oxygen is an atom ....