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
Thepotemich [5.8K]
3 years ago
11

Planck’s constant is approximately equal to which of the following?

Chemistry
1 answer:
KonstantinChe [14]3 years ago
7 0
Henlo!
Bohr's model was unable to calculate or it required precise information about position of an electron and its velocity. It is very difficult to calculate velocity and position of an electron at the same time because electron i too small to see and may only be observed if peturbed, for example we could hit the electron with another particle such as photon or an electron, or we could apply electric or magnetic field to the electron. This will inevitably change the position of the elctron or its velocity and direction. Heisenberg aid that more precisely we can define the position of an electron, the less certainity we are able to define its velocity and vice versa. 
In short, first option is correct one

You might be interested in
40. Write a balanced equation and a net ionic equation for combining AgNO3(aq) and Na2CO3(aq)
ki77a [65]
2AgNO3 (aq) + Na2CO3 (aq) --> Ag2CO3 (s) + 2NaNO3 (aq)

2Ag(+) (aq) + CO3(2-) (aq) --> Ag2CO3 (s)
hope it helps
3 0
3 years ago
With respect to the categories of assets, liabilities, and stockholders' equity presented on the balance sheet (statement of fin
Pavlova-9 [17]

Explanation:

GAAP is a generally accepted accounting principle in U.S. it refers to common sets of accepted accounting principle, standards, procedures that the companies and its accountants must follow in order to compile their financial statement.

IFRS are sets of international accounting standards That specify how the financial statements will disclose different types of transactions and other activities. The International Accounting Standards Board (IASB) issues IFRS which defines precisely how accountants are required to maintain and record their accounts. In an attempt to have an universal accounting system, IFRS was developed so that business and accounts can be interpreted from industry to industry, and country to country.

4 0
3 years ago
The expected o-c-h angle in this molecule is degrees. the expected hybridization at the central carbon is
WINSTONCH [101]

Each neutral carbon atom contains four valence electrons and may form up to four electron domains. Possible hybridizations include

  • sp^{3}, four electron domains, as in ethane \text{C}_2\text{H}_6
  • sp^{2}, three electron domains, as in ethene \text{C}_2\text{H}_4
  • sp, two electron domains, as in ethyne \text{C}_2\text{H}_2

Molecules of each of the three hybridization demonstrate spatial configurations that would maximizes the separation between the electron domains.

  • Carbon atoms with a sp^{3} hybridization would demonstrate a tetrahedral configuration with a bond angle of approximately 109.5\textdegree{}
  • Carbon atoms with a sp^{2} hybridization would demonstrate a triangular planar configuration with a bond angle of 120\textdegree{}
  • Carbon atoms with a sp hybridization would demonstrate a linear configuration with a bond angle of 180\textdegree{}

Bond angles are characteristic of the spatial configuration of electron domains and identifies the hybridization of the central carbon atom.

Note that each hydrogen atom contains only one valence electron and would form only single bonds. It takes two valence electrons for oxygen atoms to achieve an octet such that each oxygen form only two bonds at a single time. Therefore given the fact that the carbon is bonded to both hydrogen and oxygen, only the following hybridizations are possible

  • sp^{3} in which the oxygen atom forms a carbon-oxygen double bond with the central carbon atom;
  • sp^{2} in which the oxygen atom forms a single bond with the central carbon atom and with a second atom.
3 0
3 years ago
Which of the following BEST describes a process by which metamorphic rock becomes igneous rock?
RideAnS [48]

Answer:

changing shape under heat and pressuremelting completely, then cooling

Explanation:

7 0
2 years ago
Read 2 more answers
What observations can you make about this group of people? Name one inference you can make from your observations.​
Stells [14]

Answer:

no no no who are these some look good but are black what is this

7 0
3 years ago
Read 2 more answers
Other questions:
  • What mass of fes is formed if 9.42 g of fe reacts with 68.0 g of s8? 8fe(s) + s8(s) → 8fes(s)?
    14·1 answer
  • A car with a mass of 1.1 × 103 kilograms hits a stationary truck with a mass of 2.3 × 103 kilograms from the rear end. The initi
    6·2 answers
  • Which is the first step in the dissolving process?
    15·1 answer
  • How many quarters are in $500
    6·1 answer
  • Which one of the following does not describe an acid​
    9·2 answers
  • Evaluate each scenario described to determine the direction of heat flow.
    8·1 answer
  • Laura jala un trineo una distancia de 2000 cm usando una cuerda, con una tensión constante de 80 N. La tarea requiere de 800 J d
    14·1 answer
  • Where and in what features is water found on Earth?
    5·1 answer
  • What is the mass of 6.78x1050 molecules of NaCl
    12·1 answer
  • Dominic made the table below to organize his notes about mixtures. A 1-column table. The first column labeled properties of mixt
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!