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3 years ago

Explain three path ways of respiration

Chemistry

1 answer:

Phantasy [73]3 years ago

6 0

Answer:

Explanation:

1:faringe:es un conducto que permite la comunicación entre las fosas nasales (el paso del aire por la nasofaringe a la laringe) y la cavidad bucal

Laringe:es una cavidad formada por cartílagos que presenta una saliente comúnmente llamada "nuez" en la laringe se encuentra las cuerdas vocales que al vibrar con el aire produce la voz

Tráquea:es un conducto de doce centímetros de longitud,situado delante del estómago.la tráquea brinda una vía abierta al aire que entra y sale se los pulmones

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How many carbon atoms are present in a mol of 12C?

Andrei [34K]

One mole of any substance contains 6.02 x 10²³ particles

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4 years ago

Compare and contrast the way energy can transfer from one object to another.

Monica [59]

Answer:

<h3>Energy is transferred from the hotter object to the cooler one, and the difference in temperature between them decreases.</h3>

Explanation

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3 years ago

calculate the molarity of 0.57 moles NaHCO3 in 61.2 mL of solution. Report your answer 4 places after the decimal don’t forget t

VARVARA [1.3K]

Answer:

The correct response is "9.313 M".

Explanation:

According to the question, the values are:

Moles of solute,

= 0.57 moles

Liters of solution,

= 61.2 mL

or,

= 0.0612 L

Now,

The molarity will be:

= $\frac{Moles \ of \ solute}{Liters \ of \ solution}$

On putting the given the values in the above formula, we get

= $\frac{0.57}{0.0612}$

= $9.313 \ M$

3 0

3 years ago

1.3 times 10^15 atoms of hydrogen converted to moles? How many moles?

Dovator [93]

Answer:

The answer is

$\huge 2.16 \times {10}^{ - 9} \: \: \: mol$

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{1.3 \times {10}^{15} }{6.02 \times {10}^{23} } \\ = 2.159 \times {10}^{ - 9}$

We have the final answer as

$2.16 \times {10}^{ - 9} \: \: \: moles$

Hope this helps you

6 0

3 years ago

Decay mode for cesium-137

Sveta_85 [38]

Answer:

Beta decay

Explanation:

Radioactive decay changes one nucleus to another. The type of decay that a particular nucleus undergoes depends on the number of neutrons and protons present in such nucleus.

Radioactive decay tends to lead to the attainment of a stable neutron/proton ratio.

The decay mode for cesium-137 is beta decay. The beta decay of cesium-137 yields Barium-137.

Beta decay decreases the neutron - proton ratio.

5 0

3 years ago

Explain three path ways of respiration​

Explain three path ways of respiration