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
alex41 [277]
3 years ago
11

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. Currently the material used

to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. What is the energy in Joules for a photon of light at this wavelength?
Chemistry
1 answer:
AnnZ [28]3 years ago
7 0

ti\his answer is radiation

You might be interested in
describe how the discoveries of scientist over time have contributed to our current understanding of atom
Olenka [21]

Answer:

In 1897, the British physicist J. J. Thomson (1856–1940) proved that atoms were not the most basic form of matter. He demonstrated that cathode rays could be deflected, or bent, by magnetic or electric fields, which indicated that cathode rays consist of charged particles (Figure  2.2.2 ). More important, by measuring the extent of the deflection of the cathode rays in magnetic or electric fields of various strengths, Thomson was able to calculate the mass-to-charge ratio of the particles. These particles were emitted by the negatively charged cathode and repelled by the negative terminal of an electric field. Because like charges repel each other and opposite charges attract, Thomson concluded that the particles had a net negative charge; these particles are now called electrons. Most relevant to the field of chemistry, Thomson found that the mass-to-charge ratio of cathode rays is independent of the nature of the metal electrodes or the gas, which suggested that electrons were fundamental components of all atoms.

Explanation:

5 0
3 years ago
How many moles of HCl are present in 4.7 L of a 4.23 M HCl solution?
REY [17]

Hey There!

Volume = 4.7 L

Molarity = 4.23 M

Therefore:

n = M *V

n = 4.23 * 4.7

n = 19.881 moles of HCl

hope this helps!

6 0
3 years ago
Which law suggests that at a constant pressure, the volume of gas is directly proportional to its temperature?
igor_vitrenko [27]

Answer:

The law that suggests that at a constant pressure and the volume of gas directly proportional to its temperature is the Boyle's law.

Explanation:

4 0
2 years ago
Which group, metals or nonmetals, has the greatest chance to gain electrons and to become negative ions?
tatyana61 [14]
It would be non-metals
8 0
3 years ago
What 100 plus 124000
kodGreya [7K]
100 + 124000 = 124100
6 0
3 years ago
Read 2 more answers
Other questions:
  • A (what) forms when the sperm first fertilizes an egg
    8·1 answer
  • What types of compounds do not dissolve in water?
    13·1 answer
  • Consider the reaction Mg(s) + I2 (s) → MgI2 (s) Identify the limiting reagent in each of the reaction mixtures below:
    11·1 answer
  • The two pieces of clothing have ____ charges and they _____ each other.
    11·2 answers
  • Using the two cell reduction potentials shown for their corresponding reaction, calculate the cell potential for a voltaic cell
    8·1 answer
  • What is the length of an average solar cycle? A. 5 years B. 11 years C. 22 years D. 10 years
    9·1 answer
  • A cation with a +4 charge has 26 neutrons and 18 electrons. What is the identity of the element?
    14·1 answer
  • The whole reason things stay afloat or sink is because water is​
    15·1 answer
  • How many molecules are their in o.5 mole of H2o
    10·1 answer
  • How do we get energy from the food we eat?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!