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
Volgvan
3 years ago
10

How many variables should be tested in order for the experiment to valid?

Chemistry
1 answer:
IgorLugansk [536]3 years ago
5 0
The material of object. The size of object. The surface are of the object
You might be interested in
Gas in a balloon occupies 3.3 L. What volume will it occupy if the pressure is changed from 100.0 kPa to 90.0 kPa (at constant t
german
Since the temperature is a constant, we can use Boyle's law to solve this.<span>

<span>Boyle' law says "at a constant temperature, the pressure of a fixed amount of an ideal gas is inversely proportional to its volume.

P α 1/V               </span>⇒                 PV = k (constant)<span>

Where, P is the pressure of the gas and V is the volume.

<span>Here, we assume that the </span>gas in the balloon is an ideal gas. 

We can use Boyle's law for these two situations as,
            P</span>₁V₁ = P₂V₂<span>

P₁ = 100.0 kPa = 1 x 10⁵ Pa
V₁ = 3.3 L
P₂ = 90.0 x 10³ Pa
V₂ =?

By substitution,
    1 x 10⁵ Pa x 3.3 L = 90 x 10³ Pa x V₂</span><span>
                            V</span>₂ = 3.7 L<span>
</span><span>Hence, the volume of gas when pressure is 90.0 kPa is 3.7 L.</span></span>
8 0
3 years ago
Calculate the solubility of CuX (Ksp=[Cu2+][X2−]=1.27×10−36) in a solution that is 0.200 M in NaCN.
Tomtit [17]

Answer:

Solubility= 1.08×10-12

Explanation:

Take the cube root of 1.27×10-36

3 0
3 years ago
Read 2 more answers
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to
Alchen [17]

Answer:

2,400,000 torr (3 s.f.)

Explanation:

Convert the pressure from Pascal to atm first:

\boxed{1 \: atm = 101325 \:Pa }

3.20 ×10⁸ Pa

= [(3.20 ×10⁸) ÷101325] atm

= 3158.2 atm (5 s.f.)

Convert atm to torr:

\boxed{1 \: atm = 760 \: torr}

3158.2 atm

= (3158.2 ×760) torr

= 2400000 torr (3 s.f.)

6 0
3 years ago
Which of these would describe a dish that contains bits of chocolate and nuts you can see?
Alenkasestr [34]

Answer:

mezcla homogénea

8 0
3 years ago
Read 2 more answers
HELP PRETTY PLEASE QUICKLY!!! AND ILL GIVE YOU BRAINLIEST
Yuri [45]

Answer: The answer is C

Explanation: Sound waves tend to spread farther the deeper the sound is, and the waves go lower then the second example, deeming it is louder.

8 0
3 years ago
Other questions:
  • The phase of matter can be changed by:
    10·2 answers
  • Deciding that she was thirsty, Ms. Smith decided to mix up some lemonade using 2 tablespoons of lemonade, and 2 cups of water. W
    14·1 answer
  • Two identical containers, one red and one yellow, are inflated with different gases at the same volume and pressure. Both contai
    13·1 answer
  • 5487129m to three significant figures
    6·1 answer
  • Atoms of which elements form bonds without satisfying the octet rule?
    12·1 answer
  • Plz do some and show work
    11·1 answer
  • PLEASE HELP PLEASE
    5·1 answer
  • Which of the following forms of invisible light, would have the highest wavelength?
    6·1 answer
  • After three half-lives of an isotope 1 billion of those isotopes remain undecayed. How many atoms were in the original sample?
    6·1 answer
  • What is the empirical formula for the molecular formula given? Molecular formula: C5H12O
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!