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
xenn [34]
3 years ago
8

chan hee is inflating a basketball using an air pump. he notices that the pump gets warm as he uses it. what is a good hypothesi

s that could lead to new experimentation?
Chemistry
2 answers:
PtichkaEL [24]3 years ago
8 0

Explanation:

When air is inflated into the basket ball then it means pump which is the system becomes warm.

Since work is done by the system and when pump is compressed then we are increasing pressure on air molecules inside it. Therefore, they will gain kinetic energy and this energy will be released in the form of heat.

Due to which the pump becomes warm.

Thus, we can conclude that a good hypothesis that could lead to new experimentation is that temperature of the pump is increased.

juin [17]3 years ago
3 0
I hypothesize that compressing air causes the temperature to increase.
Can you give me a brainliest?
You might be interested in
ASAPPPP EASYYYY!!!!!!!!!!
Charra [1.4K]
I can’t see it so u won’t get and answer
4 0
3 years ago
7) Muscles work to lift a bone in your arm by contracts and relaxes to<br><br><br>help please <br>​
Andru [333]

Answer:

By contracting, muscles pull on bones and allow the body to move. When you want to bend your elbow, your biceps muscle contracts, and, at the same time, the triceps muscle relaxes. The biceps is the flexor, and the triceps is the extensor of your elbow joint.

Explanation:

yeah, hope it helps a little. :)

3 0
2 years ago
6)Explain why a 0.010 M solution of hydrochloric acid, HCl has a pH of 2.00 but a 0.010 M solution of
ExtremeBDS [4]

0.010 M solution of hydrochloric acid, HCl has a pH of 2.00 but a 0.010 M solution of acetic acid, HCH₃COO, is 3.37 is because HCl dissociates more.

<h3>Dissociation</h3>

This is the separation of ions of an ionic compound when it dissolves.

<h3>Hydrogen ion concentration of HCl</h3>

Since 0.010 M solution of hydrochloric acid, HCl has a pH of 2.00 its hydrogen ion concentration is gotten from

pH = -log[H⁺]

So,

[H^{+} ] = 10^{-pH}

So, [H⁺] = 10⁻²

<h3>Hydrogen ion concentration of HCH₃COO</h3>

Also, since 0.010 M solution of acetic acid, HCH₃COO, has a pH of 3.37, its hydrogen ion concentration is gotten from

pH = -log[H⁺]

So,

[H^{+} ] = 10^{-pH}

So, [H⁺] = 10⁻³°³⁷ = 0.000427 = 4.27 × 10⁻⁴

Since the hydrogen ion concentration of HCl is 10⁻² and the hydrogen ion concentration of HCH₃COO is 4.27 × 10⁻⁴, we see that HCl dissociates more than HCH₃COO.

So, 0.010 M solution of hydrochloric acid, HCl has a pH of 2.00 but a 0.010 M solution of acetic acid, HCH₃COO, is 3.37 is because HCl dissociates more.

Learn more about dissociation here:

brainly.com/question/25854432

5 0
2 years ago
Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodi
Mumz [18]
<span>The alkali metal atom forms a +1 ion, while the alkaline earth metal atom forms a +2 ion. hope this helps</span>
6 0
3 years ago
After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.203 M. You perform
jek_recluse [69]

Answer:

0.203 is the mean of the concentration of the HCl solution

Explanation:

You have 5 concentrations. The most appropiate result is the mean of those results. The mean is a statistical defined as the sum of each result divided by the total amount of results. For the results of the problem, the mean is:

0.210 + 0.204 + 0.201 + 0.202 + 0.197 = 1.014 / 5 =

<h3>0.203 is the mean of the concentration of the HCl solution</h3>
8 0
2 years ago
Other questions:
  • An atom of boron has an atomic number of 5 and an atomic mass of 11. The atom contains (2 points)
    5·1 answer
  • List 3 ways the periodic table is useful<br> Help!
    12·2 answers
  • A student collected a 40.0 mL sample of H_{2} 2 ​ gas at a temperature of 20.0°C and pressure of 720.0 mmHg. The next day the te
    12·1 answer
  • Calculate the following quantity: volume of 1.403 M copper(II) nitrate that must be diluted with water to prepare 575.2 mL of a
    9·1 answer
  • Determine the frequency of light with a wavelength of 4.257x10^-7cm
    14·1 answer
  • What ions are in water all the time?
    15·1 answer
  • The Earth's Layers
    6·2 answers
  • Bo<br> A classroom warms up after<br> the students enter from PE
    11·1 answer
  • Please Help Will Mark Brainliest!!!
    15·2 answers
  • Genes are sections of DNA that code for a particular trait. Genes are
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!