The longest-wavelength line in the infrared series for hydrogen where m = 3 is known as the Paschen series.
The Paschen series corresponds to the transitions where the electron moves from a higher energy level to the third energy level (n=3). The formula for calculating the wavelength of a line in the Paschen series is given by λ = 1.096776 × 10^-2 (1/3^2 - 1/m^2) meters. To convert this to nanometers, we can multiply by 10^9. When m=4, the longest-wavelength line in the Paschen series is 1093.33 nanometers.
Therefore, the answer to the question is that the longest-wavelength line in nanometers in the infrared series for hydrogen where m = 3 is not defined since the Paschen series begins at m = 4.
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Which of the following is the correct definition of partial pressure *
A) The total pressure exerted by all gases in the mixture
B) The contribution each gas in a mixture makes to the total pressure
C) The space occupied a gas in the mixture
D) The amount of gas particles present in a mixture
Answer:A
Explanation:
Which is true of an element?
a
It is the purest substance
b
It has different kinds of atoms
c
It is a mixture
d
The atoms always exist as single atoms
Answer:
b it has different kinds of atoms
Answer:
it has different kind of atom
Explanation:
i think
what is the answer to this
Answer:
Explanation:
i may be wrong but i think its b
Answer:
B Ndaira is right for real
HELPPP which one has four energy levels Si, Ge, or Sn???
Answer:
Ge
Explanation:
pretty sure im on high school 12th
describe meteor showers
Answer:
a rain of asteroids coming from space
Explanation:
What is the formula for CNHO
Answer:
this is basically structure of iso cyanic acid
Find the mass of a person walking west at a speed of 0.8 m/s with momentum of 52.0 kg*m/s west.
Answer:
12 preguntas y no te sabes ni una sola valla el mundo se está acabando
Answer:
65 kg
Explanation:
m = p ÷ v
m= 52 ÷ 0.8
m = 65 kg
The freezing point of a substance is the
at
which it freezes.
Answer:
reff lagay mo yung ilalagay mo
Answer:
Freezing point is the temperature at which a liquid becomes a solid at normal atmospheric pressure. Alternatively, a melting point is the temperature at which a solid becomes a liquid at normal atmospheric pressure.
Question 8
Which one of the following salts does not contain water of crystallisation?
Answer:
pb
Explanation:
dosn't contain water of crystallization
What drives this process
Answer:
B
Explanation:
cool air never rises so not A
C would mean its getting warmer
and heat flows from warm to cool so not D
we are left with B
if my anwser helps please mark as brainliest.
What is on the left side of the arrow 2H2+1O2 --> 2H2O
Answer:
The correct answer is - reactants.
Explanation:
In any chemical reaction, there is an arrow that distinguishes the two major components of the chemical equation by placed in between them. These two components are reactants and products.
OftenlThe reactants placed on the left side of a chemical equation and the products placed on the right side of a chemical equation. In this given case, the reactants 2H2 + 1O2 are placed on the left side of the equation.
1) In which state of matter will particles move the fastest?
Answer:
Gases
Explanation:
The particals will move around rapidly in all directions.
Hi people senko-San is best wifu change my mind
Answer:dude what are you doing here?
Explanation:also i don’t know if I can lol
If the point of the nail can be approximated as a circle with a radius 2.00×10^-3m What is the pressure in MPa exerted on the wall if a hammer strikes the nail with a force of 104 N
Answer:
8.28 MPa
Explanation:
From the question given above, the following data were obtained:
Radius (r) = 2×10¯³ m
Force applied (F) = 104 N
Pressure (P) =?
Next, we shall determine the area of the nail (i.e circle). This can be obtained as follow:
Radius (r) = 2×10¯³ m
Area (A) of circle =?
Pi (π) = 3.14
A = πr²
A = 3.14 × (2×10¯³)²
A = 3.14 × 4×10¯⁶
A = 1.256×10¯⁵ m²
Next, we shall determine the pressure. This can be obtained as follow:
Force applied (F) = 104 N
Area (A) = 1.256×10¯⁵ m²
Pressure (P) =?
P = F / A
P = 104 / 1.256×10¯⁵
P = 8280254.78 Nm¯²
Finally, we shall convert 8280254.78 Nm¯² to MPa. This can be obtained as follow:
1 Nm¯² = 1×10¯⁶ MPa
Therefore,
8280254.78 Nm¯² = 8280254.78 Nm¯² × 1×10¯⁶ MPa / 1 Nm¯²
8280254.78 Nm¯² = 8.28 MPa
Thus, the pressure exerted on the wall is 8.28 MPa
Picture a neutral S atom. This neutral atom will have
valence electrons. To reach a more stable configuration, this atom will
(gain, lose) electrons. The charge of the ion that forms will be
ASAP please
Answer:
it will have 6 valence electrons
it will gain electrons
charge will be 2-
Which statement correctly describes soil horizon C? A. It is considered the subsoil layer. B. It is the horizon with the smallest rock pieces. C. It is also referred to as the bedrock layer. D. It is the horizon that contains the least humus.
Help I'll help y'all
heyyyyy.
Answer:
It's D, it is the horizon that contains the least humus.
Explanation:
I just did the test
The statement which correctly describes the soil horizon is option B. The horizon B contains the the smallest rock pieces. It is also called the subsoil layer.
What is soil horizon?Soil horizon contains different layers of soil which are classified based on the composition of the soil and the presence of rocks within the soil. The primary level of the soil is rich in humus. The decomposed of matter of plants and animals are called humus. On which the plants are growing.
The secondary level of soil horizon or the subsoil level contains some small rocks also onto which the roots of plants does not adhere so much. The third level of soil horizon contains bigger rocks with small gaps between them.
The last layer of the soil horizon is called bedrock layer containing bigger rocks with no significant gaps between them It is called the bedrock layer.
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While driving down the road, a tiny hummingbird hit the windshield of
Maria's car. This is a clear case of Newton's 3rd law of motion. The
hummingbird hit the car and the car hit the hummingbird. How do the
forces on the hummingbird and the windshield compare?*
The forces are equal and opposite.
The force on the windshield is greater
The force on the hummingbird is greater
The force on the hummingbird is less than that of the windshield.
Answer:
2
Explanation:
Answer:
a
Explanation:
i just took it
I WILL GIVE YOU BRANILY PLS
Answer:
what dose this even mean?
Explanation:
. How many grams of magnesium chloride can be produced by reacting 2 moles of chlorine gas with excess magnesium bromide? ____Cl2 + ____MgBr2 ___MgCl2 + ___Br2
Answer: 190 g of magnesium chloride can be produced by reacting 2 moles of chlorine gas with excess magnesium bromide.
Explanation:
The balanced chemical reaction is;
[tex]Cl_2+MgBr_2\rightarrow MgCl_2+Br_2[/tex]
[tex]Cl_2[/tex] is the limiting reagent as it limits the formation of product and [tex]MgBr_2[/tex] is the excess reagent.
According to stoichiometry :
1 mole of [tex]Cl_2[/tex] produces = 1 mole of [tex]MgCl_2[/tex]
Thus 2 moles of [tex]Cl_2[/tex] will produce=[tex]\frac{1}{1}\times 2=2moles[/tex] of [tex]MgCl_2[/tex]
Mass of [tex]MgCl_2=moles\times {\text {Molar mass}}=2moles\times 95g/mol=190g[/tex]
Thus 190 g of magnesium chloride can be produced by reacting 2 moles of chlorine gas with excess magnesium bromide
Describe the similarities and/or differences between heating and burning the magnesium metal. Did either heating or burning produce a chemical change?
Answer and Explanation:
Heating the magnesium metal is a physical change because after the process, the magnesium metal is still magnesium metal and no other substance is formed. When we heat the metal, we tranfer energy and the temperature is raised. It could include the melting of the metal, which is a change in the state of matter, but it is still a physical change because no chemical reactions occur.
Burning the magnesium metal is a chemical change because it involves the reaction with O₂ to form a different compound (a magnesium oxide).
Solid potassium chlorate breaks into potassium chloride and oxygen gas when heated up to high temperature. This is an example of a/an _______ reaction.
Answer:
es correcto bro claro eres un crak
Answer:
Decomposition Reaction
Explanation:
You can determine the type of reaction by writing out a balanced equation.
Solid Potassium Chlorate: KClO3
Potassium Chloride: KCl
Oxygen Gas: O2
Balanced Equation: 2KClO3 -> 2KCl + 3O2
By definition, a decomposition reaction is when a single substance decomposes into two more simpler substances. AB -> A + B
Because the solid potassium chlorate is breaking into two substances, potassium chloride and oxygen gas, it is a decomposition reaction.
Cu + HNO3 --> Cu(NO3)2 + NO + H2O
how to balance... WILL GIVE 15 POINTS
Answer:
3 Cu + 8 HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O
Explanation:
Make sure both sides are equal
3 Cu + 8 HNO3 --> 3 Cu(NO3)2 + 2 NO + 4 H2O
// start by those elements that change their oxidation degree
Cu and N
// also you can write reduction-oxidation reactions
[tex]Cu^{0}[/tex] + 2 [tex]e^{-}[/tex] --> [tex]Cu^{-2}[/tex] | 2
[tex]N^{+5}[/tex] - 3 [tex]e^{-}[/tex] --> [tex]N^{+2}[/tex] | 3
// write the numbers of electrons that are lost/gained as the coefficients of the opposite elements
// then check if H and O are the same on both sides
// adjust if they aren't.
Answer:
Explanation:
3Cu + 2HNO3 --> 3Cu(NO3)2 + 2NO + 2H2O
Write the word and balanced chemical equations for the reaction between:
Copper + zinc nitrate (zinc is more reactive than copper)
Answer:
Word Equation:
Zinc + Copper (II) nitrate → Copper + Zinc nitrate
Formula Equation:
Zn (s) + Cu(NO3)2 (aq) → Cu (s) + Zn(NO3)2 (aq)
Ionic Equation:
Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s)
Description
A 1 gram granule of zinc metal was dropped into a test tube containing 10 cm
3
of clear blue copper nitrate solution (1 M). The zinc quickly began to react with the solution producing a clear green solution and a darker solid at the bottom of the test tube.
Explanation:
Practice Problem #2: How many atoms
of Ba are in 7.8 moles of Ba?
[tex]7.8 \: mol = \frac{6.02 \times {10}^{23} atoms}{1 \: mol} = 4.6956 \times {10}^{24} \: atoms[/tex]
round as you wish.
What is earth's crust mainly composed of
Answer:
The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma. At the center of the Earth is a hot, dense metal core.
Explanation:
Answer:
The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma.
Can someone help me ASAP.
Answer:
This type of mutation occurs when one or more base pairs are added to the gene sequence: insertion
This type of mutation occurs when one or more base pairs take the place of other base pairs in the gene sequence: substitution
explain the factor of a skeleton system
what is a second degree burn
100 POINTS PLS HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
i need this im struggling with my work
Explanation:
Last one and the first
BF3
What is The calculation and bond type