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
dsp73
2 years ago
14

An x-ray has a wavelength

Chemistry
1 answer:
goldfiish [28.3K]2 years ago
5 0

Answer:

C

Explanation:

For electromagnetic waves frequency X wavelength = speed of light

                                                f * 2.2 x 10^-11  = 3 x 10^8  m/s

                                         f = 3 x 10^8 / 2.2 x 10^-11

                                            = 1.36 x 10 ^19

                                             = 1.4 x 10^19   with two significant digits

You might be interested in
Ionic compounds can conduct electricity when dissolved in water or melted, because A. they have shared electrons. B. they have n
liberstina [14]
So,

Ionic compounds are compounds composed of ions.  The following are soluble ionic compounds (they dissolve in water):

NaCl(s) --> Na⁺(aq) + Cl⁻(aq)
NaOH(s) --> Na⁺(aq) + OH⁻(aq)

The following are insoluble ionic compounds (they have low solubilities):

Al₂O₃ --> 2Al³⁺+3O²⁻
AgCl --> Ag⁺ + Cl⁻

These compounds can only be appreciably separated by melting or by dissolving them in enormous amounts of water (the concentration will still be very low).

Ionic compounds have electrons that are locked in place because of the strong ionic attractions between the ions.  A charge is produced by moving electrons.  Since the ions in melted ionic compounds are free to move, their electrons are no longer locked, allowing the ionic liquid to conduct electricity.

NaCl(s) --> Na⁺(l) + Cl⁻(l)

The answer is D.
6 0
3 years ago
Help solve this page please
AURORKA [14]

Answer:

man, i have the same problem, i don't know hpw to solve this

8 0
3 years ago
Identify the spectator ions in this reaction. Check all that apply.
balandron [24]
CN, LI are the only two
4 0
3 years ago
Read 2 more answers
How many grams are in 6.02 x 10^23 molecules of glucose C6H12O6?
astra-53 [7]

198 g of Glucose Is the answer.

4 0
3 years ago
Read 2 more answers
there are 28L of soup in a pot. Marshall serves 400mL in each bowl. If he fills 16 bowls how much soup is left in the pot? in li
Ne4ueva [31]
Total in pot=28 L
400 mL in each bowl
16 bowls filled
1000mL=1L
16 bowls(400mL/1 bowl)=6400mL
6400mL(1L/1000mL)=6.4L
28L-6.4L=21.6 L
5 0
3 years ago
Other questions:
  • What is the molarity of a solution that contains 0.500 mole of kno3 dissolved in 0.500-liter of solution?
    14·1 answer
  • What do they all have the same of ?
    14·1 answer
  • HELP FAST PLZ!!!!
    13·1 answer
  • The gases listed are at standard temperature and pressure: · 1 mol of CO2 gas · 1 mol of N2 gas · 2 mol of O2 gas Which statemen
    9·2 answers
  • Which of the following is released during cellular respiration? A.Carbon dioxide B.Glucose C.Mitochondria D.Oxygen
    15·2 answers
  • A ____________ are large molecules made up of repeating units, referred to as monomers.
    11·2 answers
  • If charges flow very slowly through a metal, why does it not require several hours for a light to come on when you throw a switc
    11·1 answer
  • D c a b yfyefegyfyrgfyeerg
    15·1 answer
  • Need help is label a warm area or is b Orr are they both warm
    6·1 answer
  • Which compounds exhibit geometric isomerism? Draw and name the two isomers in each case:(b) 3-hexene
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!