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3 years ago

Which of the following series describe the correct pathway of oxygen in the breathing system?

Chemistry

1 answer:

SashulF [63]3 years ago

8 0

Answer:

Respiratory System:

Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)

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According to the electron configuration, which atom will be the most reactive?

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2 years ago

Which statements accurately describe elements? Check all that apply.

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Elements are made up of only one type of atom.
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2 years ago

How many grams are in 562 dg? 56.2 g 56,200 g 5.620 g 5.62 g

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3 years ago

Liquid nitrogen boils at –195.8°C. Express the boiling point of liquid nitrogen in kelvin

inessss [21]

Answer:

$\boxed {\boxed {\sf 77.35 \ K}}$

Explanation:

The Celsius and Kelvin scales are used to measure the temperature of matter. Their scales and unit differences are the same (1 K increase = 1 °C increase), but they have different starting points.

So, the conversion is quite simple and only requires addition because of the different starting points. The formula is:

$T_K = T_C+ 273.15$

The boiling point of liquid nitrogen is -195.8 °C. We can substitute this value into the formula.

$T_K= -195.8 + 273.15$

$T_K= 77.35 K$

The boiling point of liquid nitrogen is 77.35 Kelvin.

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2 years ago