1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Korolek [52]
3 years ago
9

Is a hollow tube that serves as passageway of air into the luns

Chemistry
1 answer:
KIM [24]3 years ago
7 0

Answer:

The air that we breathe in enters the nose or mouth, flows through the throat (pharynx) and voice box (larynx) and enters the windpipe (trachea). The trachea divides into two hollow tubes called bronchi

Explanation:

You might be interested in
How are electrons arranged around an atom?
Schach [20]
They are arranged in shells
6 0
2 years ago
If the same amount of heat is added to 25.0 g of each of the metals, which are all at the same initial temperature, which metal
AVprozaik [17]

Answer:

The bismuth sample.

Explanation:

The specific heat c of a substance (might not be a metal) is the amount of heat required for heating a unit mass of this substance by unit temperature (e.g., \rm 1\; ^{\circ}C.) The formula for specific heat is:

\displaystyle c = \frac{Q}{m \cdot \Delta T},

where

  • Q is the amount of heat supplied.
  • m is the mass of the sample.
  • \Delta T is the increase in temperature.

In this question, the value of Q (amount of heat supplied to the metal) and m (mass of the metal sample) are the same for all four metals. To find \Delta T (change in temperature,) rearrange the equation:

\displaystyle c \cdot \Delta T = \frac{Q}{m},

\displaystyle \Delta T = \frac{Q}{c \cdot m}.

In other words, the change in temperature of the sample, \Delta T can be expressed as a fraction. Additionally, the specific heat of sample, c, is in the denominator of that fraction. Hence, the value of the fraction would be the largest for sample with the smallest specific heat.

Make sure that all the specific heat values are in the same unit. Find the one with the smallest specific heat: bismuth (\rm 0.123 \; J \cdot g\cdot \,^{\circ}C^{-1}.) That sample would have the greatest increase in temperature. Since all six samples started at the same temperature, the bismuth sample would also have the highest final temperature.

3 0
3 years ago
You decide you want to carry a boulder home from the beach. It is 20 centimeters on each
e-lub [12.9K]

Answer:

Weight of boulder = 22,400 gram

Explanation:

Given:

Volume = 8,000 cm³

Density = 2.8

Find:

Weight of boulder

Computation:

Weight of boulder = Volume x Density

Weight of boulder = 8,000 x 2.8

Weight of boulder = 22,400 gram

3 0
3 years ago
When aqueous solutions of potassium carbonate and cobalt(II) sulfate are combined, solid cobalt(II) carbonate and a solution of
Lostsunrise [7]
K2CO3 (aq) + CoSO4 (aq) ---> CoCO3 (s) + K2SO4 (aq)
6 0
3 years ago
Read 2 more answers
Which is a physical property of milk?
inna [77]
C) Milk boils at about 212°F (100°C). 
6 0
3 years ago
Other questions:
  • I need help plzzz help me!!!
    12·1 answer
  • Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. What is the Ka fo
    12·1 answer
  • A molecule of ethyl alcohol is converted to acetaldehyde in one’s body by zero order kinetics. If the concentration of alcohol i
    14·1 answer
  • What is the effect of day lenght in plant growth? dependent and independent
    8·1 answer
  • A 3.50 amp power supply is used to deposit chromium from a solution of CrCl3. How long will it take to deposit 100.0 grams of ch
    11·1 answer
  • Which of the following is correct?
    15·2 answers
  • HCN<br> H:C:N:<br> 3.<br> Is this Lewis Structure correct?
    11·1 answer
  • H2(g)+I2(s)→HI(s)H2(g)+I2(s)→HI(s) balance equations
    7·1 answer
  • PLEASE HELP MY TEACHER IS GOING TO SEE ME AFTER CLASS
    7·1 answer
  • Std 10th
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!