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
netineya [11]
2 years ago
9

How does NaOH form a basic solution when it dissolves in water

Physics
1 answer:
Lubov Fominskaja [6]2 years ago
8 0
It decomposes into CH3COO- and H+ when dissolved in water. The H+ ions react with the water molecules to generate H3O+, making the solution acidic. When NaOH is added to water, it separates into Na+ and OH-. The sodiums have little effect on the solution, but the hydroxyls make it more basic.
You might be interested in
What happens when the data in an investigation does not support the origanal hypothesis
alexgriva [62]

Answer: The scientist gives up and starts an investigation on a new topic.

Explanation:

The data is altered so that it supports the original hypothesized. The data is then altered so that it supports the original hypothesis.

5 0
3 years ago
9. Since current is the rate at which charge is flowing, if the current in the circuit decreases, what does that mean about the
TiliK225 [7]

Answer:

Electric current is defined as the rate of flow of electric charge in a circuit from point one point to another. This is carried by electrically charged particles within the circuit. Current is represented by the symbol I and its unit measured in Amperes. It is therefore related to the voltage and resistance of the circuit. If the current in the circuit reduces, the rate at which the charge and current on the capacitor reduces also proportionally in an exponential manner.

Explanation:

Since a decrease in the flow of current in the circuit is observed, the implication for the rate at which the charge and voltage on the capacitor is also an exponential decrease in the rate of flow with time. This is because the electric current is directly proportional to the electric charge and the time.

5 0
3 years ago
In a classroom demonstration, the pressure inside a soft drink can is suddenly reduced to essentially zero. Assuming the can to
umka2103 [35]

Answer:

3141N or 3.1 ×10³N to 2 significant figures. The can experiences this inward force on its outer surface.

Explanation:

The atmospheric pressure acts on the outer surface of the can. In order to calculate this inward force we need to know the total surface area of the can available to the air outside the can. Since the can is a cylinder with a total surface area given by 2πrh + 2πr² =

A = 2πr(r + h)

Where h = height of the can = 12cm

r = radius of the can = 6.5cm/2 = 3.25cm

r = diameter /2

A = 2π×3.25 ×(3.25 + 12) = 311.4cm² = 311.4 ×10-⁴ = 0.031m²

Atmospheric pressure, P = 101325Pa = 101325 N/m²

F = P × A

F = 101325 ×0.031.

F = 3141N. Or 3.1 ×10³ N.

5 0
3 years ago
What is kinetic energy
mixas84 [53]
<span>(symbol K)</span><span> Energy that an object possesses because it is in motion. It is the energy given to an object to set it in motion; it depends on the mass (</span>m) of the object and its velocity (v<span>), according to the equation K = 1/2 </span>mv2<span>. On impact, it is converted into other forms of energy such as heat, sound and light.</span>
8 0
3 years ago
A laser emits light at power 6.20 mW and wavelength 633 nm. The laser beam is focused (narrowed) until its diameter matches the
Ipatiy [6.2K]

Answer:

a) S = 1.69 10⁹ W/m², b)  P = 5.63 Pa , c) F = 20.6 10⁻¹² N

Explanation:

a) The intensity defined as the energy per unit area

    S = U / A

Area of ​​a circle is

    W = 6.2 mw = 6.2 10-3 W

    R = 1080 nm = 1080 10⁻⁹ m  = 1.080 10⁻⁶ m

   A = π R2

   A = π (1,080 10⁻⁶)²

   A = 3.66 10 -12 m²

   S = 6.2 10-3 / 3.66 10-12

   S = 1.69 10⁹ W / m²

b) The radiation pressure

   P = 1 / c (dU / dt) / A

   S = (dU / dt) / A

   

   P = S / c

   P = 1.69 10 9 / 3. 108

   P = 5.63 Pa

c) the definition of pressure is force over area

   P = F / A

   F = P A

   F = 5.63 3.66 10⁻¹²

   F = 20.6 10⁻¹² N

d) for this we use Newton's second law

   F = ma

   a = F / m

8 0
3 years ago
Other questions:
  • Which force in nature is believed to have formed second?
    10·1 answer
  • A long wire is known to have a radius greater than 4.0 mm and to carry a current uniformly distributed over its cross section. i
    11·1 answer
  • Consider the uniform electric field \vec{E} =(4.00~\hat{j}+3.00~\hat{k})\times 10^3~\text{N/C} ​E ​⃗ ​​ =(4.00 ​j ​^ ​​ +3.00 ​k
    11·1 answer
  • What is the shape of the orbit of satellites
    8·2 answers
  • 4. A metal of mass 1.55kg was heated from 300K to 320K in 6 minutes by a boiling ring of 85 W rating, calculate the specific hea
    13·1 answer
  • Which chemical equation represents a double replacement reaction?
    11·1 answer
  • If a bird flies from its nest to the ground and back are the distance and displacment the sam
    8·1 answer
  • If the social distancing length between two students is doubled from two metered to four meters, does the gravitational force be
    7·1 answer
  • Abishek is a runner. He runs the 100 m sprint
    5·2 answers
  • Brainliest if correct Question 2 of 10
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!