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
AlexFokin [52]
3 years ago
7

Which term is used to describe the day of June 21 at north pole in terms of daylight and darkness

Chemistry
1 answer:
UkoKoshka [18]3 years ago
8 0
<h3><u>Answer;</u></h3>

Summer solstice

<h3><u>Explanation;</u></h3>
  • <em><u>Summer solstice refers to the two moments during the year when the path of the Sun in the sky is farthest north in the Northern Hemisphere (June 20 or 21) or farthest south in the Southern Hemisphere (December 21 or 22)</u></em>.
  • The summer solstice occurs at the moment when the earth's tilt toward from the sun is at a maximum.
  • Therefore, on the day of the summer solstice, the sun appears at its highest elevation with a noontime position that changes very little for several days before and after the summer solstice.

You might be interested in
Which will not appear in the equilibrium constant expression for the reaction below?
alexira [117]

a

is the answer i just took the tes

8 0
3 years ago
Read 2 more answers
How many micrograms (ug) are in 3.4 x 10^-5 ounces (oz)
marysya [2.9K]

Answer:

964ug

Explanation:

The problem here involves converting from one unit to another.

 We are to convert from ounces to micrograms.

                                    1ug  = 1 x 10⁻⁶g

                                    1oz  = 28.35g

       

So we first convert to grams from oz then take to ug:

 Solving:

                    1oz  = 28.35g

             3.4 x 10⁻⁵oz  will then give  3.4 x 10⁻⁵ x 28.35 = 9.64  x 10⁻⁴g

So;

                    1 x 10⁻⁶g    = 1ug

          9.64  x 10⁻⁴g will give \frac{9.64 x 10^{-4} }{1 x 10^{-6} }      = 9.64 x 10²ug or 964ug

8 0
2 years ago
Which element would be the most reactive with K? Br, Na, Ar, or O? And how do you know?
kykrilka [37]
Ar I did this I think i got it right on edunuty
5 0
3 years ago
In NMR if a chemical shift(δ) is 211.5 ppm from the tetramethylsilane (TMS) standard and the spectrometer frequency is 556 MHz,
Vika [28.1K]

Answer:

The answer is: 11759 Hz

Explanation:

Given: Chemical shift: δ = 211.5 ppm, Spectrometer frequency = 556 MHz = 556 × 10⁶ Hz

In NMR spectroscopy, the chemical shift (δ), expressed in ppm, of a given nucleus is given by the equation:

\delta (ppm) = \frac{Observed\,frequency (Hz)}{Frequency\,\, of\,\,the\,Spectrometer (MHz)} \times 10^{6}

\therefore Observed\,frequency (Hz)= \frac{\delta (ppm)\times Frequency\,\, of\,\,the\,Spectrometer (MHz)}{10^{6}}

Observed\,frequency= \frac{211.5 ppm \times 556 \times 10^{6} Hz}{10^{6}} = 11759 Hz

<u>Therefore, the signal is at 11759 Hz from the TMS.</u>

6 0
3 years ago
Nitroglycerine decomposes violently according to the chemical equation below. What mass of carbon dioxide gas is produced from t
Ulleksa [173]

Explanation:

Below is an attachment containing the solution.

5 0
3 years ago
Other questions:
  • carboxylic acid can react with an inorganic chloride to make an acid anhydride or acid chloride. Does it matter which chloride w
    15·2 answers
  • If there are 4 grams of reactant, how many grams of product are produced by the chemical reaction? A) 0 grams B) 2 grams C) 4 gr
    15·2 answers
  • The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0027 m. calculate the number of molecules inside th
    11·1 answer
  • What is the formula for tetrasulfur hexabromide<br><br>If you answer I will give you a brainliest
    11·1 answer
  • How many grams of al are in 4.70 moles?
    7·1 answer
  • There are 6.022 x 10^23 atoms of Hg in 1 mole of Hg. The number of atoms in 4.5 moles of Hg can be found by multiplying 4.5 by 6
    7·2 answers
  • How is the kinetic energy of the constituent particles of any matter affected by a change in temperature?
    15·1 answer
  • Select the correct answer.
    5·1 answer
  • Can someone help me with Reaction Diagram
    12·1 answer
  • Compare and contrast aldehydes, ketones and alcohols in terms of structure, physical properties and chemical properties.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!