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
irinina [24]
3 years ago
12

Which of the following is a characteristic of most non-metals

Chemistry
1 answer:
Mandarinka [93]3 years ago
8 0
I believe the correct answer to your question is Brittle. Hope I'm correct let me know.
You might be interested in
What is name of each shape​
dimulka [17.4K]

Answer:

I am so sorry I do not know this

Explanation:

4 0
3 years ago
Which of the following best explains why bonds form between atoms?
ANEK [815]

Answer:

D

Explanation:

I believe the answer is D because atoms are always seeking to fill up their outer electron shell/valence shell and want to gain a full octet.

6 0
3 years ago
A particular laser consumes 130.0 Watts of electrical power and produces a stream of 2.67×1019 1017 nm photons per second.
solniwko [45]

The missing question is:

<em>What is the percent efficiency of the laser in converting electrical power to light?</em>

The percent efficiency of the laser that consumes 130.0 Watt of electrical power and produces a stream of 2.67 × 10¹⁹ 1017 nm photons per second, is 1.34%.

A particular laser consumes 130.0 Watt (P) of electrical power. The energy input (Ei) in 1 second (t) is:

Ei = P \times t = 130.0 J/s \times 1 s = 130.0 J

The laser produced photons with a wavelength (λ) of 1017 nm. We can calculate the energy (E) of each photon using the Planck-Einstein's relation.

E = \frac{h \times c }{\lambda }

where,

  • h: Planck's constant
  • c: speed of light

E = \frac{h \times c }{\lambda } = \frac{6.63 \times 10^{-34}J.s  \times 3.00 \times 10^{8} m/s }{1017 \times 10^{-9} m }= 6.52 \times 10^{-20} J

The energy of 1 photon is 6.52 × 10⁻²⁰ J. The energy of 2.67 × 10¹⁹ photons (Energy output = Eo) is:

\frac{6.52 \times 10^{-20} J}{photon} \times 2.67 \times 10^{19} photon = 1.74 J

The percent efficiency of the laser is the ratio of the energy output to the energy input, times 100.

Ef = \frac{Eo}{Ei} \times 100\% = \frac{1.74J}{130.0J} \times 100\% = 1.34\%

The percent efficiency of the laser that consumes 130.0 Watt of electrical power and produces a stream of 2.67 × 10¹⁹ 1017 nm photons per second, is 1.34%.

You can learn more about lasers here: brainly.com/question/4869798

8 0
3 years ago
How can we remove the hardness of water by boiling?​
pantera1 [17]

Heat makes it softer

5 0
3 years ago
Which substance would have the highest melting point, based on electronegativity?
Mazyrski [523]

Answer:

H₂O

Explanation:

Based electronegativity, water H₂O will have the higher melting point from the given choices. The binding force between hydrogen and oxygen is greater than for the others.

  • In group 6, oxygen has the highest electronegativity.
  • It pulls the shared electron closer in the bond.
  • The high electronegativity between hydrogen and oxygen causes the elevated melting point between the two species.  
5 0
3 years ago
Other questions:
  • A liquid that occupies a volume of 2.68 l has a mass of 2.40 kg what is the density of the liquid in kgl/?
    7·1 answer
  • What term best defines the splitting of nuclei into smaller fragments due to the bombardment of neutrons?
    10·1 answer
  • Which element below must be stored in oil because of its reactivity?
    11·2 answers
  • A tire at 21°C has a pressure of 0.82 atm. Its temperature decreases to –3.5°C. If there is no volume change in the tire, what i
    6·1 answer
  • How many electrons are in polonium with a -3 charge?
    15·1 answer
  • A strawberry nutritional drink used for a liquid diet is flavored with methyl butanoate. Draw the structure of methyl butanoate.
    11·1 answer
  • ( QUESTION) Physical properties are-
    15·1 answer
  • During the workup portion of the reaction of alkenes with HBr as described in the experiment provided, a student transferred the
    11·1 answer
  • How much did one drop of HNO3 cause the pH of water to change?
    9·2 answers
  • What is the main difference between active transport and passive transport? *
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!