3. Which of the following is used to calculate the average atomic mass of an element?
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Related Questions
Which best explains what happens during crossing over?
The chromosomes have electrical connections that allow them to line up randomly.
Paired chromosomes overlap and portions of DNA switch between chromosome.
Genetic material is switched because the chromosomes line up independently.
Chromosomes line up randomly and cross genetic information between unpaired chromosomes.
Answers
Answer:
Chromosomes line up randomly and cross genetic information between unpaired chromosomes.
Explanation:
Answer:
d.
Explanation:i took the quiz on edge 2020
Why do most metals exist in nature as minerals rather than as pure metallic elements?
Answers
which molecule or ion has a linear shape?
a. BeCl2
b. PH3
c. ClO4-
d. PCl5
Answers
Answer:
bec12 is it.one or i it is under 180
during a labaratory experiment a sample of aluminum is found to have a mass of 12.50 grams and a volume of 4.6 millititers what is the density of this samplw expressed to thw correct number of significant figures
Answers
Answer: download socratic for those type of answer it will give you GREAT ANSWERS !!
Explanation:
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Read this passage from "The Secret Life of Walter Mitty."
"Puppy biscuit," said Walter Mitty. He stopped walking and the buildings of Waterbury rose up out of the misty courtroom and surrounded him again.
A woman who was passing laughed. "He said ‘Puppy biscuit,’" she said to her companion. "That man said ‘Puppy biscuit’ to himself."
What does the dialogue in the excerpt show about Mitty?
He is awkward and absentminded.
He is responsible and conscientious.
He is funny and entertaining.
He is sour and nasty.
Answers
Answer:
He is awkward and absentminded.
Explanation:
"The Secret Life of Walter Mitty" by James Thurber presets the story of Walter with a dream. The beginning of the story reflects on the idea that the story is more inclined towards the dreams and fantasy-full world rater than reality. Walter's dreams are a mixture of reality and his imagination. He spoke certain words those do not have meaning in reality. He calls himself 'Puppy Biscuit" to which the women reacted with a laugh. This represented his absent-minded character and his appeal towards is dreams.
Why does an ion have a charge
Help please:)
Answers
Answer:
An ion is charged because the number of electrons does not equal the amount of particles.
Explanation:
Can be positive (meaning more protons than electrons) and it can be negatively charged (meaning there are more electrons than protons).
Hope this helps!
Answer:
An ion has a charge because the number of electrons dont equal the amount of protons in the molecule or atom.
Explanation:
The negative or positive charge depend on wether the atom or molecule has more electrons(-) or protons(+).
What’s this called please help
Answers
Answer:
the answer is a linear
Explanation:
heres a graph different ones at this link
What purpose do neutrons serve in the nucleus ? What happens if there are too many or too few neutrons?
Answers
Answer:
These nuclei with different numbers of neurons are called isotopes
Answer:
neutrons' main function is to attract each other and keep the nucleus of an atom intact. a nucleus will become unstable if there are too many or too few neutrons in it.
Explanation:
too many= it will undergo beta decay (the neutrons will changes into proton)
too few= there will be an imbalance between forces which leads to nuclear imbalance
What are 3 common household items that you can identify 2 chemical properties if the item
Answers
Answer:
vacuum
Explanation:
because the government to take a look at the end of the day it was do people I
A student combines two clear liquid chemicals together in a beaker. When the two chemicals are combined, bubbles are formed, the solution turns blue, and you can see flakes of something forming on the bottom of the beaker. Is this a physical or chemical change? Why?
Answers
Answer:
chemical change
Explanation:
A physical change is one that makes changes to the physical properties of matter. In many cases, the difference is usually reversible. Examples include boiling, melting, freezing, the magnetization of metals, etc.
A chemical change is one in which a new kind of matter is formed. It is usually accompanied by energy changes, i.e., the evolution or absorption of energy in the form of heat or light. This process is not easily reversible. Examples include; combustion, rusting of iron, precipitation, the souring of milk, etc.
From the question given, the combination of two clear liquid in a beaker which results to formation of bubbles and changes in coloration of the solution is a chemical change.
how many atoms in a sugar cube
Answers
Answer:
Sugar is made up of carbon, hydrogen and oxygen atoms. It's the way these atoms are connected that makes each type of carbohydrate different. In each molecule of table sugar there are: 12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms.
Explanation:
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if three electrons are available to fill three empty 6p atomic orbitals, how will the electrons be distributed in the three orbitals
a.) one electron in each orbital
b.)two electrons in one orbital, one in another, none in third
c.) three in one orbital, one in other two
d.) cannot be predicted, determined by random chance
Answers
Answer:
A) one electron in each orbital
Explanation:
Orbitals get electrons one at a time. If there are three electrons and three empty orbitals, then one electron will go into one orbital!
The first energy level which has f orbitals to fill is
A. 3
B.4
C.5
D.2
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Answer:
the answer is 4 because 3 just have d orbitals
You have an empty milk container, and you close the cap on the container. Do the particles of air that you trapped inside the container have mass? Explain how you know.
Answers
Answer:
Yes the air particles have mass
Explanation:
Air is mater: it has weight and occupies space. For it to have weight, it has to have a mass. The mass would however be determined by how much volume of air is trapped in the container, but nevertheless, the mass of the air can be obtained.
We also notice that if the container is "popped", the mass of air escapes through one way by the weight exerted on it.
I hope this was helpful.
Answer:
Yes the air particles have mass
Explanation:
You can tell that if the container is pooped open the mass of air escapes
Please help me
Identify each thermal energy scourge as Conduction (A) Convection (B) Radiation (c)
Answers
Answer:
I think it is...
1) A
2) C
3) A
4) B
5) A
6) C
Explanation:
I'm so sorry that I'm so late, I just wanted to answer it to help you. I don't know if you got graded on it already, but hey, I tried :)!
where is lithium used in the body?
Answers
Answer:
u
Explanation:
Which of the following wave types must have a medium to travel?
A. Ultraviolet light
B. Microwaves
C. Seismic (earthquake) waves
D. Radio waves
E. X rays
Answers
Answer:
it is B
Explanation:
Answer: B microwaves
explain the relationships that are present between the frequency, wavelength, and amplitude of a wave in 3 to 5 sentences.
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Answer:
Wavelength refers to the length of a wave from one peak to the next. The amplitude or height of a wave is measured from the peak to the trough. The wavelength is measured from peak to peak. Wavelength is directly related to the frequency of a given wave form.
How are electrically neutral atoms different than they form
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An atom is said to be electrically neutral if it has an equal amount of protons and electrons. On the other hand, an atom is electrically charged if its protons and electrons are not distributed evenly.
What are neutral atoms?Neutral atoms are defined as when an atom has an equal amount of protons and electrons, it also has an equal number of electric charges, both positive and negative. As a result, every element in the periodic table has a neutral atomic structure.
Normal atoms have an equal amount of positive and negative particles and a neutral charge. Accordingly, an atom with a neutral charge is one in which the atomic number is matched by the number of electrons.
Thus, an atom is said to be electrically neutral if it has an equal amount of protons and electrons. On the other hand, an atom is electrically charged if its protons and electrons are not distributed evenly.
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A high concentration of hydrogen ions means a solution is what?
A. very acidic
B. neither acidic or basic
C. neutral
D. very basic
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:
Core is to Hot Iron AS Mantle is to:
A. Rigid Crust
B. Fragile Crust
C. Hard Rocks
D. Molten Rock
.
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What is the conversion factor used when converting mass to moles?
Answers
In such a conversion, we use the molar mass of a substance as a factor to convert that to mole units into mass units (or, conversely, mass units into mole units).
Then We also established that 1 mol of Al incorporates a mass of 26.98 g (Example). Stated mathematically that is, 1 mol Al = 26.98 g Al
Molar massNow, This relation provides a factor to travel from grams to moles.
which is help to Using the factor 98.08 g / 1 mol: grams H 2 SO 4 = 3.60 Then mol x 98.08 g / 1 mol = 353 g H 2 SO 4
Find out more information about Molar mass here:
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Which is the IUPAC name for NO?
nitric oxide
binitrogen oxide
dinitrogen dioxide
nitrogen monoxide
Answers
The IUPAC name for NO is nitric oxide. The correct option is A.
What is IUPAC naming?The International Union of Pure and Applied Chemistry (IUPAC) is a global organization that represents chemistry as well as related sciences and technologies.
The chemical compound's identity is represented by its common and IUPAC names, which differ from one another. Every chemical compound has multiple names.
Complete the following step-by-step response: The IUPAC nomenclature is a standardized name given to organic compounds in accordance with official naming rules.
Nitric oxide, also known as NO, is a colorless gas. It is one of the most important nitrogen oxides.
Nitric oxide is a free radical, which means it has an unpaired electron, which is sometimes represented in its chemical formula by a dot.
Thus, the correct option is A.
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Answer:
D: Nitrogen Monoxide
Explanation:
There's one Nitrogen atom and one Oxygen atom
2. Ultraviolet radiation has a frequency of 6.8 x 10'5Hz. Calculate the energy, in
joules, of the photon.
Answers
Answer:
[tex]E=4.5\times 10^{-18}\ J[/tex]
Explanation:
It is given that, the frequency of Ultraviolet radiation is [tex]6.8\times 10^{15}\ Hz[/tex]
We need to find the energy of the photon. The formula for the energy of a photon is given by :
[tex]E=hf\\\\\text{Where h is Planck's constant}\\\\E=6.63\times 10^{-34}\times 6.8\times 10^{15}\\\\E=4.5\times 10^{-18}\ J[/tex]
So, the energy of the photon is [tex]4.5\times 10^{-18}\ J[/tex].
Find an element that has the same
number of valence electrons as
Thallium (T1).
i need the answer nowww
Answers
Answer:sodium
Explanation: because its not hard to look on the PERIODIC TABLE
The
force acting on an object is the combination of
all of the individual forces acting on it.
Check it
2 SCRATCHPAD
~ Improve this questio
Answers
Answer:
Yes as you can improve The invisible to human eye force or physical force if any being applied to a object of any mass and with all individual forces as they are acting on this object
Explanation:
Please help me thank you! Stay safe
Answers
Answer:
number 3
Explanation:
Explanation:
it's the third graph
values are put directly without scaling
how many elements belong to the Halogen family? list the member element by thier symbol.
Answers
Answer: six elements
Explanation: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (As), and tennessine (Ts)
Answer:
there are six elements
N2+H2》NH3
is it balanced or unbalanced
Answers
N2 + 3H2 -> 2NH3
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Select 5 elements that form ions in an isoelectronic series with the noble gas Argon. Support your claim with evidence and scientific reasoning.
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Answer:
Explanation: