Which layer of the suns atmosphere appears red during an eclipse

Answers

Answer 1

Answer:

The part of the Sun that we see during eclipse is the photosphere. The photosphere is scattered by the loose electrons in the corona’s plasma. A total solar eclipse is when the Moon appears to cover the entire solar disc. It lasts no more than 8 minutes.

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In which reaction will the point of equilibrium shift to the left when the pressure on the system is increased
How many atoms are in 1.75 mol of ecules oh NH^3
Drawing a conclusion derived from knowledge of an established principle is called deductive reasoning.True or false?
Which of the following chemical equations is balanced?2 Al + 2 CuO ----> A1,0, + 2 CuFe, 0, + 3C --> 2Fe + 3 CO,2 SO, + 02 S0, + 0, ---> 2 SO,2 Ag,0 ----> 2 Ag + O2> 02
Which trends are observed when the elements in Period 3 on the Periodic Table are considered in order of increasing atomic number?(1) The atomic radius decreases, and the first ionization energy generally increases. (2) The atomic radius decreases, and the first ionization energy generally decreases. (3) The atomic radius increases, and the first ionization energy generally increases. (4) The atomic radius increases, and the first ionization energy generally decreases.

Which formula represents an ionic compound?
(1) H2 (3) CH3OH
(2) CH4 (4) NH4Cl

Answers

Answer is: (4) NH4Cl.

Name of this chemical copmpound is ammonium chloride.

Ammonium chloride (NH₄Cl) is chemical compound with neutral charge.

1) Hydrogen (H) has oxidation number +1 in compounds with nonmetals (nitrogen and chlorine).

2) Chlorine has oxidation number -1, because ammonium ion (NH₄⁺) has positive charge.

3) In ammonium cation (NH₄⁺), nitrogen has higher electronegativity than hydrogen, so it has negative oxidation number -3:

x + 4 · (+1) = +1.

x = 1 - 4.

x = -3; oxidation number of nitrogen.

Electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

Other molecules have covalent chemical bonds.

An ionic compound is formed when there is a transfer of electrons between two atoms. The formula for an ionic compound is usually written as the combination of the symbols of the two ions. (4) NH4Cl represents an ionic compound as it follows the criteria of an atom losing or gaining electrons.

An ionic compound is formed when there is a transfer of electrons between two atoms. In an ionic compound, one atom will lose electrons to become a positively charged ion, while the other atom will gain those electrons to become a negatively charged ion. The formula for an ionic compound is usually written as the combination of the symbols of the two ions.

Out of the given options, (4) NH4Cl represents an ionic compound. In this formula, the ammonium ion (NH4+) loses one electron to become positively charged, and the chloride ion (Cl-) gains that electron to become negatively charged.

Learn more about Ionic compounds here:

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Which of the following would you expect to have the highest value for entropy? CO2 (s)

H2O (s)

CO2 (g)

H2O (l)

Answers

Chemistry cool

CO2 (g) is your answer

hey there i see you need help well i am here to do just that

CO2 (g) is the correct answer

hope this helps

THe following elements are found in what part of the periodic table Germanium, astatine, tellurium, and arsenic?

Answers

They are elements of group IV

In which sample of water do the molecules have the highest average kinetic energy?(1) 20. mL at 100.°C (3) 60. mL at 60.°C
(2) 40. mL at 80.°C (4) 80. mL at 40.°C

Answers

The answer is (1). The question is asking the average kinetic energy. So it does not related with volume. When temperature increases, the kinetic energy will also increase. So the answer should be the highest temperature.

Read the sentence below and answer the question that follows.Tommy the Clown or the Hip Hop Clowns travel the world performing for diverse audiences.

How should the sentence above be rewritten to correct the subject-verb agreement error?

A) The sentence is correct as written.
B) Tommy the Clown or the Hip Hop Clowns travels the world performing for diverse audiences.
C) Tommy the Clown or the Hip Hop Clowns was travelling the world performing for diverse audiences.
D) Tommy the Clown and the Hip Hop Clowns travels the world performing for diverse audiences.

Answers

Correct sentence should be B. Tommy the Clown or the Hip Hop Clowns travels the world performing for diverse audiences. If there is a single subject then the verb should be plural, that is, it should be travels as oppose to travel.

Answer:

Answer is A) The sentence is correct as written

Explanation:

The world's record in the 100 m dash is 9.69 seconds and in the 100 yard dash is 9.21 seconds. A) find the speed in mi/h of the runner who set the record of 9.69 seconds.
B) find the speed in mi/h of the runner who set the record of 9.21 seconds.

Answers

Speed is equivalent to the distance traveled divided by the time it takes to travel that certain distance.
To solve this problem convert the units first from meter and yards to miles. 100 metes is 0.0621371mi and 100 yards is 0.0568182 yard. 9.69s = 0.002691667 hr and 9.21s = 0.002558333

A.) 23mi/hr
B.) 22.20mi/hr

Answer:

A) The speed of the runner is 23.085 mile/hr.

B) The speed of the runner is 22.209 mile/hr.

Explanation:

$Speed=\frac{\text{Distance covered}}{\text{Time taken}}=(D)/(T)$