7.016003 amu.
yes this is the answer yw
(15 Points!) Match the electron configurations with the correct element name.
[tex]1s^22s^22p^63s^23p^63d^74s^2[/tex]
[tex]1s^22s^22p^63s^23p^63d^{10} 4s^24p^64d^15s^2[/tex]
[tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^64d^{10}4f^45s^25p^66s^2[/tex]
[tex]1s^22s^22p^63s^23p^63d^{10}4s^24p^2[/tex]
Choices:
Cobalt (Co)
Germanium (Ge)
Yttrium (Y)
Neodymium (Nd)
Answer:
Using a lil common sense bcz I have no book sense on this...
Explanation:
Cobalt (Co) - 1
Germanium (Ge) - 4
Yttrium (Y) - 2
Neodymium (Nd) - 3
I Just looked at which comes before which in the periodic table and obv the one with less length from (1-4) is the lowest in the periodic table continuing... yah digg... lol
Which is a form of matter?
A. electricity
B. energy
C. light
D. water
Answer:
D
Explanation:
Water is a liquid
Answer:b energy
Explanation: i hope its right
Which lists the fractions 4/7 5/9 and 2/3 in order from least to greatest
A chemical change always involves a change in the ____ of matter
How many protons electrons and neutrons does an atom with atomic number 50 and mass number 125 contain
Answer:
A.
Explanation:
50 protons,50 electrons, 75 neutrons.
Hope this helped!
May I get brainliest I need to rank up :)
When energy changes from one form to another, it is called energy
A.radiations
B.transmissions
C.solutions
D.transformations
Answer:
(see below)
Explanation:
Using the process of elimination:
It's not energy radiations because radiation is a way energy is transferred.
It's not energy transmissions because that's the transfer of energy from one medium to another, like the sun to a black construction paper through radiation. There are three ways of transmission: radiation, convection, and conduction.
It's not solutions because a solution is a homogenous mixture where it is uniform in composition and appearance throughout. Also, the term "energy solutions" makes no sense whatsoever.
It's most likely energy transformations because energy transformation, also called energy conversion, is the process of changing energy from one form to another.
what property of does honey possess that makes it resist from flowing
in form of solid form honey possess
Answer:
Honey
Explanation:
Honey is an ancient remedy for the treatment of infected wounds, which has ... The antimicrobial properties of honey have been known to humans for ...
Abstract
Introduction
Composition
Honey production and ...
Physical properties of honey
Honey as food
Microbes in honey
1.
Sabrina was asked by a classmate why she would place hydrogen in the first column of the periodic tab le. Which of the following reasons could she give as a response?
1. Hydrogen combines with chlorine in the same atomic ratio as sodium.
II. Hydrogen is a gas at room temperature.
III. Hydrogen forms diatomic molecules.
А A
I and II
B. Oll and III
COI only
D. Ill only
Answer:
The correct option is;
C. I only
Explanation:
Given that in a chemical reaction, the number of valence electrons in the outermost shell of an atom determines the ratio in which the atom combines with other atoms to have the stable 8 (octet) valence electrons in their outermost shell, we have that atoms in a group combines with atoms in other groups, where possible, in the same ratio.
Therefore, sodium, which is in the first column (group I) combines with atoms of elements in other groups, in the same ratio as atoms of the other elements of the column 1
Since hydrogen combines with chlorine in the same ratio as sodium which is from the first column, hydrogen is also an element from the first column.
Ionic solids have high values of enthalpy of fusion. Why?
what causes the lithospheric plates to move
Answer:
The heat from the Earth's cores radioactive process makes the lithospheric plates move sometimes away or toward each other.
Hope it helps :)
Answer:
convection currents in the mantle
Explanation:
Convection currents in the mantle are always moving, and make the plates move too. The plates are resting on top of the mantle, which is where the convection currents are, which make them move along with the magma.
Explain the differences between an element, a compound, and a mixture – how many different types of atoms can be found in each? How are the atoms arranged?
Answer:
An element is something sound in nature a compound is something with more then one specific atom and can be made or found in nature, and a mixture is a few different atoms that can be separated from each other
what is the democritus findings?
nvm
nvm
nvm
nvm
nvm
nvm
nvm
(First to answer gets some good) Order the following components of the universe from largest to smallest: Moon, planet,universe,star,galaxy,nebula,comet!
Answer:
Universe, galaxy, solar system, star, planet, moon and asteroid.
Explanation:
You're welcome!
Help!
The quantity of matter anything contains.
A. weight
B. mass
C. volume
Answer: B. Mass
Explanation: The quantity of matter anything contains is called mass.
How are nymphs different from adult insects?
Answer:
Explanation:
the nymph looks like a smaller version of the adult insect, & it also has no wings & molts.
How many significant figures are in 15200 mL
Answer:
3
Explanation:
The zeros after 152 are not significant.
What is the macroscopic, nanoscopic, and symbolic level of sulfur?
Answer:
these are small organism that can not seen by naked eyes
which is a reactant in the cellular respiration reaction
Answer: Oxygen and glucose are both reactants in the process of cellular respiration.
Explanation: Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
Answer: B or Oxygen
Explanation:
Edge 2021
Arrange following steps of the Scientific Method into the proper order.
11. State the Problem
2. Conclusion
1 3. Data analysis
14. Hypothesis
15. Research
1 6. Experiment/data collection
Which statement best describes a physical property?
A physical property can be measured without changing the chemical makeup of the material
A physical property describes the product of a reaction between two substances.
A physical property describes the substance in terms of energy content.
A physical property of a substance varies from sample to sample
How is eight molecules of Sulphur written
8S8 or 8S
To solve this we must be knowing each and every concept related to molecule. Therefore, eight molecules of Sulphur is written as S[tex]_8[/tex].
What is molecule?A molecule is an electrically neutral collection of two or more atoms linked together by chemical bonds. Here are several instances of molecules, as well as an explanation of the differences between particles, compounds, and ions.
An atom is indeed the element's smallest unit. A single element's atoms all have the same amount of protons. Atoms cannot be separated further using any chemical process. A molecule, on the other hand, is the basic unit of such a pure material. Eight molecules of Sulphur is written as S[tex]_8[/tex]. 8s is wrong representation.
Therefore, eight molecules of Sulphur is written as S[tex]_8[/tex].
To know more about molecule, here:
https://brainly.com/question/14130817
#SPJ2
What do you call all water on earth surface
Answer:
Hydrosphere
Explanation:
Hydrosphere includes all water on the surface of the planet.
Answer:
Hydrosphere
Explanation:
cuz i said so
Doctors are seeing an alarming increase in the number of cases of tuberculosis (TB) that is resistant to drugs commonly used to treat the disease. TB is difficult to pass to other people without prolonged contact, but it is often fatal if it is not treated.
How will doctors most likely respond to someone who has an active case of drug-resistant tuberculosis?
Answer:
Doctors will use other drugs that are known to be able to treat TB, even if they are less effective than the common drugs.
Explanation:
When a case of drug resistance is established, the doctor has to change the prescription and give other drugs that are also known to be effective against the organism.
Bacterial drug resistance is a common clinical experience. Many established drugs have been found to be ineffective in treating common infections leading to the continuous quest for improved antibiotics that are active against most organisms.
When doctors discover that someone who has an active case of drug-resistant tuberculosis, the doctor may need to change the prescription to other drugs that are also known to be effective against Mycobacterium tuberculosis, the causal agent of tuberculosis.
Learn more: https://brainly.com/question/2124849
Fakeium has four isotopes found on Earth but they’ve only been recently discovered. Do your part as a scientist and calculate the average atomic mass for fakeium so it can be added to the periodic table.
Fa - 85 is 31% of all the isotopes found.
Fa - 86 is 12% of all the isotopes found.
Fa - 87 is 38% of all the isotopes found.
Fa - 88 is 19% of all the isotopes found.
CHOICES:
84.65 g
87.00 g
87.50 g
86.45 g
Answer:
86.45 g
Explanation:
Given data:
Percent abundance of Fa - 85 = 31%
Percent abundance of Fa - 86 = 12%
Percent abundance of Fa - 87 = 38%
Percent abundance of Fa - 88 = 19%
Average atomic mass of Fa = ?
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)+ (abundance of 3rd isotope × its atomic mass) + (abundance of 4th isotope × its atomic mass) / 100
Average atomic mass = (31×85)+(12×86) +(38×87)+(19×88) /100
Average atomic mass = 2635 +1032 +3306 +1672 / 100
Average atomic mass = 8645 / 100
Average atomic mass = 86.45
9.Which part of the conductivity apparatus should you never touch
Answer:B- Leads
Explanation:
just did the quiz and got it right
3.
Which statement(s) is/are TRUE for all chemical reactions?
Answer:
the statement is or are true for all chemical reaction is false
Explanation:
if you think the answer is correct then mark me as brain list
Here you go rats....
Answer: Why exacly am i a rat
Explanation:
,....
but thanks
Answer:
what!!!??????
Which involves a chemical change?
1.separating hydrogen and oxygen from water
2.evaporating sugar from sweetened water
3.filtering sand from water
4.distilling pure water from salt water
Answer:
1
Explanation:
because you are changing the chemical makeup of the water by pulling out the two chemicals
HELP ASAP PLEASE!!!! i really need help! :( Please help me this is due at 8:45 pleaseeeee!!! show all work!!
The photoelectric effect is an electron coming out of a metal because of electromagnetic radiation
One type of electromagnetic radiation is light
Frequency (f): the number of waves / second
Can be formulated :
[tex]\tt v=\lambda\times f[/tex]
v=fast wave propagation ⇒ speed of light =3.10⁸ m/s
λ= Wavelength
The energy can be formulated as
E = h x f
Where
E = energy of light, J
h = Planck's constant (6,626.10⁻³⁴ Js)
f = Frequency of electromagnetic waves, Hz
1. λ = 4.82 x 10⁻¹⁰ m
the frequency =:
[tex]\tt f=\dfrac{v}{\lambda}=\dfrac{3.10^8}{4.82\times 10^{-10}}=6.22\times 10^{17}[/tex]
2. The energy
[tex]\tt E=6,626.10^{-34}\times 6.22\times 10^{17}=4.12\times 10^{-16}~J[/tex]
3. λ = 4.32 x 10⁻⁷ m
[tex]\tt f=\dfrac{3.10^8}{4.32\times 10^{-7}}=6.94\times 10^{14}\\\\E=6.626\times 10^{-34}\times 6.94\times 10^{14}=4.598\times 10^{-19}~J[/tex]
Concentrated hydrochloric acid has a molarity of 12.0 mol/L. What volume of it do you need to
make 1.5 L of a 0.50 mol/L solution?
Answer:
0.063 L
Explanation:
The dilution formula is M₁V₁ =M₂V₂, where M is mol/L and V is L.
We need to find V₁ so our equation is V₁ = M₂V₂ / M₁.
[tex]V1 = \frac{0.50M*1.5L}{12.0M} = 0.0625 L[/tex]
Round to the lowest significant figures = 0.063 L