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
adelina 88 [10]
2 years ago
6

Which of the following statements is true?

Chemistry
1 answer:
GarryVolchara [31]2 years ago
5 0

Answer:

RTBWETERTBWETBWETWTBTBAnswer:

Explanation:

Answer:

Explanation:

Answer:

BSRBTSTR

Explanation:

Answer:ETRTSBT

REBREGERB

Explanation:

Answer:

REBRBETSERTETREERSTSER

Explanation:SETRSBE

Answer:RETERTSE

TBESRBTBTRE

Explanation:

Explanation:

You might be interested in
If the detector is capturing 3.3×108 photons per second at this wavelength, what is the total energy of the photons detected in
Reil [10]

Answer:

The total energy of the photons detected in one hour is 7.04*10⁻¹¹ J

Explanation:

The energy carried by electromagnetic radiation is displaced by waves. This energy is not continuous, but is transmitted grouped into small "quanta" of energy called photons. The energy (E) carried by electromagnetic radiation can be measured in Joules (J). Frequency (ν or f) is the number of times a wave oscillates in one second and is measured in cycles / second or hertz (Hz). The frequency is directly proportional to the energy carried by a radiation, according to the equation: E = h.f, (where h is the Planck constant = 6.63 · 10⁻³⁴ J / s).

Wavelength is the minimum distance between two successive points on the wave that are in the same state of vibration. it is expressed in units of length (m). In light and other electromagnetic waves that propagate at the speed of light (c), the frequency would be equal to the speed of light (≈ 3 × 10⁸ m / s) between the wavelength :

f=\frac{speed of light}{wavelength}

So:

E=\frac{h*speed of light}{wavelength}

In this case, the wavelength is 3.35mm=3.35*10⁻³m and the energy per photon is:

E=\frac{6.63*10^{-34}*3*10^{8}}{3.35*10^{-3} }

E=5.93*10⁻²³ \frac{J}{proton}

The detector is capturing  3.3*10⁸ photons per second. So, in 1 hour:

E=5.93*10^{-23} \frac{J}{proton} *3.3*10^{8} \frac{proton}{s} *\frac{60}{1} \frac{s}{minute} *\frac{60}{1} \frac{minute}{hr}

E=7.04*10⁻¹¹ \frac{J}{hr}

The total energy of the photons detected in one hour is 7.04*10⁻¹¹ J

3 0
3 years ago
Which of the following is a statement of Hess's law?
attashe74 [19]

Answer:

C

Explanation:

the enthalpy of reaction is independent of the reaction path

7 0
3 years ago
Many times, during a chemical reaction, energy is given off. this type of chemical reaction can be termed
WITCHER [35]
Physical can be seen
3 0
3 years ago
What element has an atomic mass 4?
Daniel [21]

Answer:

Helium has atomic mass  4.002602.

So the answer to yr question is helium.

4 0
3 years ago
Read 2 more answers
A reaction progress curve has three peaks and two valleys between the peaks. This curve describes a reaction mechanism that invo
katrin [286]
Answer:
            <span>A reaction progress curve has three peaks and two valleys between the peaks. This curve describes a reaction mechanism that involves <u>three elementary reactions</u>.

Explanation:
                   I have drawn the progress curve with three peaks and two valleys. In fact the peaks shows higher energy and valleys show lower energies. So, Let suppose we react A and B. This reaction between A and B results in the formation of C. In this reaction the energies of A and B are less, and during the progress of reaction they cross a transition state of higher energy and forms product C with lower energy which is present at lower valley. This was first reaction. Other two reactions will be followed by conversion of C to D and conversion of D into E.</span>

3 0
3 years ago
Read 2 more answers
Other questions:
  • What elements are formed by stars having a mass greater than eight suns?
    8·1 answer
  • If you have 35 ml of gas in a closed container under 1.23 atm of pressure, what will the volume be if the pressure increased to
    5·2 answers
  • What front involves three air masses?<br> Please don't guess, give an accurate answer
    10·1 answer
  • A chemical or physical change that releases heat into its surroundings is.....
    8·1 answer
  • In a particular type of cat, coat color follows the dominant/recessive pattern of inheritance. The allele for a brown coat (B) i
    5·1 answer
  • An experiment requires that each student use an 8.5 cm length of magnesium ribbon. How many students can do the experiment if th
    12·2 answers
  • 15 The picture shows Earth’s rotation. Which pattern listed below is caused by Earth’s rotation? A Water cycle processes B Lengt
    9·1 answer
  • Please helpp!! I give brainliest!
    7·2 answers
  • Grace wanted to find out the best conditions for growing lettuce plants.
    13·1 answer
  • Why does knowing types of mixtures help you to identify a substance?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!