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3 years ago

What does polar and nonpolar mean in science

2 answers:

6 0

Polarity refers to the pull of electrons. Some elements like Fluorine and Oxygen pull electrons closer to them in their bonds (electronegativity), meaning they don't share them equally. So if they pull them closer, there is polarity in the molecule because there's a pull of electrons between atoms.

MissTica3 years ago

3 0

Polar molecules are molecules are essentially have no molecular symmetry.

Nonpolar molecules are molecules that have molecular symmetry.

Water is a very basic example of a polar molecule.

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What is a centrifuge used for?

tatiyna

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3 years ago

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the more particles a substance has at a given temperature the more thermal energy it has true or false

Flauer [41]

Answer:

$\huge\boxed{\sf True}$

Explanation:

Temperature and thermal energy are in a direct proportion which means that if temperature of a substance increases, its thermal energy also increases and vice versa.

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A sample of O2 gas occupies a volume of 571 mL at 26 ºC. If pressure remains constant, what would be the new volume if the tempe

Vlad1618 [11]

Answer: The new volume at different given temperatures are as follows.

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(a) $T_{2} = 5^{o}C$

The new volume is calculated as follows.

$\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\\frac{571 mL}{26^{o}C} = \frac{V_{2}}{5^{o}C}\\V_{2} = 109.81 mL$

(b) $T_{2} = 95^{o}F$

Convert degree Fahrenheit into degree Cesius as follows.

$(1^{o}F - 32) \times \frac{5}{9} = ^{o}C\\(95^{o}F - 32) \times \frac{5}{9} = 35^{o}C$

The new volume is calculated as follows.

$\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\\frac{571 mL}{26^{o}C} = \frac{V_{2}}{35^{o}C}\\V_{2} = 768.65 mL$

(c) $T_{2} = 1095 K = (1095 - 273)^{o}C = 822^{o}C$

The new volume is calculated as follows.

$\frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}\\\frac{571 mL}{26^{o}C} = \frac{V_{2}}{822^{o}C}\\V_{2} = 18052.38 mL$

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Protons, neutron, and elecrons

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3 years ago

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