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
Minchanka [31]
3 years ago
7

Lens coating are made of A.teflon B.bakelite C.melamine D.PVC

Chemistry
1 answer:
suter [353]3 years ago
5 0

Answer:

C. melamine

Explanation:

a thin coating that eliminates reflections and glare from the front and back surfaces of your lenses.

You might be interested in
The initial concentration of a solution of NaOH is 5.0 M. What volume of the concentrated stock solution is needed to make 200 m
sveticcg [70]

Answer:

0.8 mL

Explanation:

Use the formula M1V1 = M2V2.

Plug the values in.

5(V1) = 0.02(200)

5V1 = 4

V1 = 0.8 mL

Hope this is right, correct me if I'm wrong!

4 0
2 years ago
A pendulum has 534 J of potential energy at the highest point of its swing. How much kinetic energy will it have at the bottom o
butalik [34]
Do you got the answer with you or do u have to work them out to get the answer

4 0
3 years ago
What makes hydrogen peroxide a polar molecule?
kupik [55]
  <span>C. polar bonds and asymmetrical structure 
If the molecule contains polar bonds but it has a symmetrical structure, the polar bonds will cancel each other out so the overall molecule will be non-polar. 
On the other hand, if the molecule contains polar bonds but has an asymmetrical structure, then the polar bonds won't cancel each other out, so the overall molecule ends up being polar. 
</span>
7 0
3 years ago
Read 2 more answers
2.50 liter of a gas has a pressure of 165. kPa at 25.0°C. If the pressure increases to 600. kPa and the temperature to 100.0°C,
tiny-mole [99]

Answer:

0.861 L

Explanation:

We are given pressure, volume, and temperature, so let's apply the Combined Gas Law:

(P₁V₁)/T₁ = (P₂V₂)/T₂

Convert the temperatures to degrees Kelvin.

25.0°C -> 298 K, 100.0°C -> 373 K

Plug in the initial conditions on the left, then the final/new on the right, and solve for the unknown:

(165(2.5))/298 = (600(V₂))/373

V₂ = (165(2.5)(373))/(298(600))

V₂ = 0.861 L

7 0
3 years ago
The solubility product for an insoluble salt with the formula M2X3 is written as ________, where s is the molar solubility
masha68 [24]

Answer:

36s^5

Explanation:

We have;

M2X3 (s)------> 2M^3+(aq)  + 3X^2-(aq)

If [M^3+(aq)] = [X^2-(aq)] = s

We then have;

Ksp = (2s)^2 * (3s)^3

Ksp = 4s^2 * 9s^3

Ksp = 36s^5

Note that Ksp is known as the solubility product. It is an equilibrum equation that shows the solubility of a solute in water.

3 0
2 years ago
Other questions:
  • The rock record indicates that photosynthesis began on Earth about 3.5 million years ago.
    11·2 answers
  • Density is the measure of how much __________ is contained in a given volume
    11·1 answer
  • If 5.9 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, how many liters of CO₂ is produced? (The density of CO₂ is
    10·1 answer
  • Would a material with a higher specific heat cool faster than a material with a lower specific heat?
    11·2 answers
  • Which of the following best describes a chemical mixture​
    12·1 answer
  • A 15.33 g sample of magnesium oxide is found to contain 12.67 g of magnesium. What is the percent (by mass) composition of the m
    8·1 answer
  • PLEASE HELPPPPPP!<br> I'll appreciate!
    10·1 answer
  • How many atoms are in 15.9 g of Ag?
    9·1 answer
  • Write the nuclear equation for the beta decay of Aluminum-25.
    7·1 answer
  • Answer number 1 please
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!