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
Lemur [1.5K]
3 years ago
5

Which of these statements is correct?

Chemistry
1 answer:
Crazy boy [7]3 years ago
3 0

Answer:

C

Explanation:

You might be interested in
A redox reaction always involves
Sonbull [250]

Answer:a

Explanation:

3 0
3 years ago
The photoionization of N2 in the thermosphere absorbs much of the high-energy radiation coming from the sun. If the ionization e
muminat

Answer:

1.33 × 10⁻³¹ m

Gamma rays

Explanation:

1 mol of photons required for the photoionization of N₂ has an energy (E) of 1495 kJ = 1495 × 10³ J = 1.495 × 10⁶ J. We can find the wavelength (λ) associated with this energy using the Planck-Einstein equation.

E = h . c . λ⁻¹

where,

h is the Planck's constant

c is the speed of light

E = h . c . λ⁻¹

λ = h . c . E⁻¹ = (6.63 × 10⁻³⁴ J.s) . (3.00 × 10⁸ m/s) . (1.495 × 10⁶ J)⁻¹ = 1.33 × 10⁻³¹ m

This wavelength corresponds to the Gamma rays region of the spectrum.

3 0
3 years ago
Calculate the mass of sucrose needed to prepare a 2000 grams of 2.5% sucrose solution.
OlgaM077 [116]

Explanation:

= 2.5\% \times 2000 \\  =  \frac{2.5}{100}  \times 2000 \\  = 50 \: g

4 0
3 years ago
The science of the creation of maps and charts is called
Kay [80]
The answer is Cartography.
5 0
3 years ago
What is the molecular formula for a compound with an empirical formula of CH2O if its experimentally determined molecular weight
NNADVOKAT [17]

Answer:

C6H12O6.

Explanation:

Adding up the relative atomic masses of the elements

C + 2H + O

= 12 + 2*1 + 16.

= 30.

180 / 30 = 6  so the molecular formula is:

C6H12O6.

3 0
3 years ago
Other questions:
  • 1. How much do you like pepsi between 0-10. 2.how much do you like diet sodas between 0-10. Please answerr dont delete its my pr
    10·1 answer
  • Express (158 lb)2 to three significant figures with appropriate units
    8·2 answers
  • Cyclopropane and propylene isomers both have the formula c3h6. based on the molecular structures shown, which of these isomers w
    5·1 answer
  • ANSWER ASAP WILL GIFT BRANILIEST Which of the following happens to a molecule of an object when the object is cooled? A Its temp
    9·2 answers
  • Which type of signaling pathway uses second messengers because the hormone cannot pass through the plasma membrane?
    10·1 answer
  • What is the amount of energy carried by a photon that has a frequency of 3.76 x 1014 Hz?
    7·2 answers
  • How many grams of water would there be in 100.0g of hydrate? How many moles?
    6·2 answers
  • Checking my answers? please help
    6·1 answer
  • Can someone help I’m stuck on this question
    12·1 answer
  • What sort of fossils would be expected to be found in Antarctica from more recent times, after it had moved much closer to the S
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!