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
erastovalidia [21]
4 years ago
7

Why do your ears “pop” in an airplane?

Chemistry
1 answer:
Montano1993 [528]4 years ago
3 0
Your ears pop in airplanes because the air high above the surface of earth is less dense than air near the surface, because air near the surface had all the air above it pushing down.
You might be interested in
Which of the following is an example of a micro-habitat?
Anna11 [10]
I believe it is d, a microhabitat is a small area which differs somehow from the surrounding habitat. Its unique conditions may be home to unique species that may not be found in the larger region.
3 0
4 years ago
What is true about tRNA's: O they vary widely in size O they can covalently bond to more than one type of amino acid 0 they do n
Gekata [30.6K]

Answer:

Option (3).

Explanation:

Transfer RNA or t RNA's is one of the type of the RNA molecule necessary for the synthesis of protein translation. This RNA works as a adaptor molecule and contains 70 to 90 nucleotide in length.

Transfer RNA contains an anti codon loop. This anti codon loop has the ability to recognize an mRNA codon and result in the formation of protein product.

Thus, the correct answer is option (3).

8 0
4 years ago
A geochemist in the field takes a 36.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X.
NeTakaya

Answer:

solubility of X in water at 17.0 ^{0}\textrm{C} is 0.11 g/mL.

Explanation:

Yes, the solubility of X in water at 17.0 ^{0}\textrm{C} can be calculated using the information given.

Let's assume solubility of X in water at 17.0 ^{0}\textrm{C} is y g/mL

The geochemist ultimately got 3.96 g of crystals of X after evaporating the diluted solution made by diluting the 36.0 mL of stock solution.

So, solubility of X in 1 mL of water = y g

Hence, solubility of X in 36.0 mL of water = 36y g

So, 36y = 3.96

   or, y = \frac{3.96}{36} = 0.11

Hence solubility of X in water at 17.0 ^{0}\textrm{C} is 0.11 g/mL.

3 0
3 years ago
What is another word for carbon fiber?
Lubov Fominskaja [6]
Carbon fiber is also known as "graphite fiber"
4 0
4 years ago
Read 2 more answers
If you place a 4.00 g effervescent antacid pill into 85 mL (85 g ) of water in a 90 g glass, how much will the glass of water we
nikdorinn [45]

Answer:

The glass of water weigh once the antacid pill has dissolved will be less than the 179 grams due to evolution of carbon dioxide.

Explanation:

Mass of effervescent antacid pill = 4.00 g

Mass of water = 85 g

Mass of glass = 90 g

Total mass of the substances  together : 4.00 g + 85 g + 90 g = 179 g

Effervescent antacid pill , moment it get dissolved in water carbon dioxide gas is evolves and escape from the solutions.

This means that mass of the weight of the glass of water with antacid dissolved in it will be less than 179 grams.

5 0
3 years ago
Other questions:
  • Why does a solution of acid and sodium thiosulfate go cloudy
    8·1 answer
  • Which of the following is a soft metal in the lightest element that is a solid at standard temperature and pressure?
    5·2 answers
  • How can I become good at General chemistry 2 college level course?
    13·1 answer
  • What is the only true way to tell if a chemical reaction has occurred?<br> CFU
    9·1 answer
  • In need of help!!!!
    7·1 answer
  • The fact that the heat energy, which is added to the atoms, is released as light energy is proof of which Conservation Law?
    5·1 answer
  • Please help me<br> 5. Where is potential energy decreasing?<br> А B C D
    11·2 answers
  • How many neutrons are present in an atom of
    11·1 answer
  • Give the word and chemical equations (including state symbols) for the reaction of potassium and water
    12·1 answer
  • What is the empirical formula for C2H4S2?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!