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Naddik [55]
3 years ago
13

Why is there more co2 in the air that you breathe out than in the air that you inhale?

Chemistry
1 answer:
larisa [96]3 years ago
4 0
CO2 is produced during respiration by mitochondria.
To know why there is more CO2 in the air that you breathe out than the CO2 which you inhale, we have to know that the carbon which we breathe out as carbon dioxide comes from the waste products (the carbon in the food we eat) like the carbohydrates, fat, and protein which converted in the body by biochemical pathways to glucose. the end products of oxidation of glucose are water and carbon dioxide. This carbon dioxide which dissolved in the human blood is carried to the air in the lung by circulation before it exhales.
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Write a word equation for the extraction of tin from tin oxide using carbon
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SnO2 + 2C => Sn + 2CO

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Is a 1.4% NaCl solution hypertonic, isotonic, or hypertonic
dusya [7]

Answer:

1.4% NaCl solution is Hypertonic

Explanation:

A hypertonic solution is type of solution that has a greater concentration of solutes (substance given in a solution) on the outside of a cell when compared with the inside of a cell.

Any solution of sodium chloride (NaCl) in water with a concentration of NaCl higher than that found in physiological saline (0.9%) is considered to be hypertonic

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Which compounds are the Brønsted-Lowry bases in this equilibrium: HC2O4– + H2BO3– H3BO3 + C2O42– ?
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A 300-g aluminum cup contains 700 g of water in thermal equilibrium with the cup at 60°C. The combination of cup and water is co
Rus_ich [418]

Answer:

117.3 W is being removed.

Explanation:

The heat removed can be calculated as:

Q = m*c*ΔT

Where m is the mass, c is the specific heat and ΔT is the temperature variation. Because there're two components:

Q = mwater*cwater*ΔT + maluminum*caluminum*ΔT

Q = (mwater*cwater + maluminum*caluminum)*ΔT

Searching in a thermodynamic table:

cwater = 4.184 J/g°C

caluminium = 0.9 J/g°C

In 1 minute, the temperature decreases 2.2°C, so ΔT =  -2.2°C

Q = (700*4.184 + 300*0.9) * (-2.2)

Q = -7037.36 J

The rate of energy is the potency (P), which is the heat divided by the time. So, for 1 minute (60 s):

P = -7037.36/60

P = -117.3 J/s

P = -117.3 W

The minus signal indicates that the energy is being removed.

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3 years ago
When heat is added to or removed from a substance, it may change its state. What state will most likely result if heat is added
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It will most likely turn into gas
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