The number of mole of Cl in 1 mole of Mn₄(ClO₄)₃ is 3.00 moles
Description of Mn₄(ClO₄)₃From the formula of the compound, Mn₄(ClO₄)₃ the following were obtained:
4 moles of Mn3 moles of Cl12 moles of OHow to determine the number of mole of Cl in 1 mole of Mn₄(ClO₄)₃From the formula, we can see that 3 moles of Cl are present.
Thus, 1 mole of Mn₄(ClO₄)₃ will contain = 1 × 3 = 3.00 moles of Cl
Therefore, we can conclude that 1 mole of Mn₄(ClO₄)₃ contains 3.00 moles of Cl
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When a large object fell into a full swimming pool, it displaced 33.8 gallons of water. The density of the object is 1.65 g/mL. What is the object's weight in pounds?
If the density of the object is 1.65 g/mL. The object's weight in pounds m = 483.32 pounds.
what is density ?The density can be defined as the mass per unit volume which can be described it is the ratio between mass and volume.
Density is a measurement of matter, where it determine how tightly the matter is bond together, discovered by the Greek scientist Archimedes.
To calculate the density of an object, Density = Mass/Volume
The density of the object is 1.65 g/mL, Volume of the water is 35.1 gallons
1 gallon = 3785.41 mL
35.1 gallons = 132868 mL
1 pound = 453.592 grams
So, 219232.2 grams = 483.32 pounds weight.
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How many atoms of nitrogen are there in one mole of nitrogen dioxide?
Express your answer in number of atoms to four significant figures.
Answer:
All objects in the universe are made up of atoms. The number of atoms that can make up even a small object make up an incredibly large and unfathomable number, on the order of 10231023 atoms. The mole measurement was created in order to more easily deal with the number of atoms in a given substance. One mole is equal to 6.022 × 10236.022 × 1023 atoms.
Carbon monoxide (CO) is a poisonous gas because it binds very strongly to the oxygen carrier hemoglobin in blood. A concentration of 8.00 × 102 ppm by volume of carbon monoxide is considered lethal to humans. Calculate the volume in liters occupied by carbon monoxide in a room that measures 20.35 m long, 13.17 m wide, and 17.25 m high at this concentration.
Volume of CO in the room:
Answer:
Explanation:
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When 10g of hydrogen gas is combined with 26g of nitrogen gas to form ammonia, what is the limiting reagent?
the limiting reagent is nitrogen gas.
steps:
write out balanced equation: 3H2 + N2 = 2NH3
convert to moles to find how much NH3 each yields
find molar mass of each
10 g H2 (1 mol/2.016g) (2NH3/3H2) = 3.31 mol NH3
26g N2 (1mol/28.02g)(2NH3/1N2)=1.86 mol NH3
since N2 yields less NH3, it is the limiting reagent.
a student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks , how could this affect the calculation
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
How would this affect the calculation?We know that evaporation involves the heating a sample of a substance until all the water in it leaves and it remains only the crystalline solid. The whole water would evaporate and the mass of the sample would decrease.
When the student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks, the particles of the glass would mix with the dried salt and increase the mass of the dried salt.
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
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Select the correct answer.
According to Newton's law of universal gravitation, what is the effect of gravity on two objects as the distance between them increases?
OA. The force of gravity increases.
OB. The force increases by twice the previous amount.
OC. There is no effect on the force of gravity.
O D. The force of gravity decreases.
Answer:
Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.
Answer:
The force of gravity decreases.
Explanation:
Plato/Edmentum
(Trial 1)
Convert mass to moles for both reactants. (round to 2 significant figures.)
2.50 g CuCl equals
moles
0.50 g Al equals
moles
DONE
Answer:
CuCl has 0.025 and Al has 0.018 moles
Answer:
.019 and .0093
Explanation:
calculate the molar mass of Na2S2O3.5H2O
Answer:
248
Explanation:
Na2 = 23 x 2
S2 = 32 x 2
O3 = 16 x 3
5h20 = 5 x (2+16)
add these and u get 248
Identify the arrows that represent the process of cooling.
liquid
gas
solid
The arrows B, C, and E represent the process of cooling.
Solid state: In the solid state, the molecules are arranged in a regular and fixed pattern. The molecules in a solid are closely packed that is the solid particles can not move.
Liquid state: In the liquid state, the molecules are present in an irregular pattern. The molecules are closely packed but particles can move.
Gaseous state: In the gaseous state, the molecules are present in an irregular manner. The molecules of gases are not closely packed and can move freely.
Therefore, the solid changes to liquid on heating, and the liquid changes to solid after cooling.
Liquid changes to a gaseous state on heating while gases changes to liquid on cooling.
Solid changes to gas on heating and gases change to solid after cooling.
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6. How can an answer from an experiment be verified?
Redo
Explanation:
if the experiment is been done twice or more and if gives the same answer the experiment is verified
An element has 3 naturally occurring isotopes. Isotope 1 has a relative
abundance of 12.99% and isotope 2 has a relative abundance of 40.49%.
What is the relative abundance of isotope 3?
The correct answer for relative abundance of isotope 3 is 46.52%.
Let's consider element X, which has 3 isotopes: isotope 1 with a relative abundance of 12.99%, isotope 2 with a relative abundance of 40.49% and isotope with an unknown relative abundance.
Assuming there are only 3 isotopes of element X, we know that the sum of the relative abundances of them is equal to 100%. The relative abundance of isotope 3is:
ab(isotope 1) + ab(isoptope 2) + ab (isotope 3) = 100 %
isotope 3 = 100% - (12.99% + 40.99 % )
isotope 3 = 46.52 %
Element X has 3 isotopes: isotope 1 with a relative abundance of 12.99%, isoptope 2 with a relative abundance of 40.49% and isotope 3 with a relative abundance of 46.52%.
The percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element is known as its relative abundance.
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People are looking to see why some people get bit more by mosquitos than others. Some people have
wondered if the scent of their perfume can have an effect on how often they are bit.
a)
independent variable:
b) dependent variable:
c) three possible constants in the
scenano
Answer:
see bellow..
Explanation:
a) independent variable ; the specific scents being used (like vanilla, or blueberry etc.)
b) how much of it is sprayed
c) the weather, brand of perfume, record time
9. The surface of the Moon is covered in craters, mountains, and———
plains from ancient volcanoes,
in Space
Moon geological research is based on observations made using telescopes on Earth, measurements made by spacecraft in orbit, lunar samples, and geophysical data.
Oxygen (O), silicon (Si), iron (Fe), magnesium (Mg), calcium (Ca), aluminum (Al), manganese (Mn), and titanium are among the substances known to exist on the lunar surface (Ti). The most plentiful ones include silicon, iron, and oxygen. The estimated oxygen concentration is 45%. (by weight). Due to solar wind deposition, carbon (C) and nitrogen (N) seem to be present only in very small amounts.
Impact craters, associated ejecta, a few volcanoes, hills, lava flows, and depressions filled with magma are the main features of the lunar surface.
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Three girls raced their model cars down a
40-meter track. Their times are in the table.
What was the average speed at which the
cars rolled down the track?
The average speed at which the cars rolled down the track 4.28 m/s
Average Speed is defined as Total Distance Traveled ÷ Total Time Taken . SI unit of average speed is meter per second ( m/s).
Average Speed = total distance traveled ÷ total time taken
we have , jessica's car travelled 40 m in 10 sec
kristi's car travelled 40 m in 20 sec
laticia's car travelled 40m in 8 sec
Average Speed = total distance traveled ÷ total time taken
so, = 40+40+40 ÷ 10+20+8
= 120÷28
= 4.28 m/s
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calculate the energy required to excite an electron from n=2 to n=4
Explanation:
taking atom as hydrogen than
answer is +2.55
just apply Delta energy=energy in 4th orbit -energy in 2nd orbit
[tex]energy = - 13.6 \times z ^{2} \div n {}^{2} [/tex]
so here you can find answer
A certain chemical reaction releases 27.4 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of reactant will produce 880. J of
heat?
Set the math up. But don't do any of it. Just leave your answer as amath expression.
A chemical reaction of exothermic kind releases energy in the form of heat and light.
We are given that reactant releases 27.4kJ/g for every gram of reactant consumed.
We are required to find number of grams of reactant that has been consumed
It is also given that 880J of energy is released
Hence, grams of reactants consumed is 880/27.4gm
Disclaimer:
It has been asked by the student to leave the question as mathematical expression.
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The partial electron configuration of an atom with 11 electrons is shown.
1s²2s²2p6x
Which of the following does X represent?
A. 3s¹
B. 2d¹
C. 3p¹
D. 4s¹
Answer:
This would be 3S^1.
Explanation:
It would be 3s^1 because that is how the orbitals are formed.
It would be form lowest to highest: s,p,d,f.
Then it would go to highest, 2 =s, 6=p, d =10, f= 14.
So, it would be: 1s2, 2s2, 2p6, 3s2.
Since 3s2 isn't on here, then 3s1 would become the answer.
Complete this analogy: Competition is to ____________as_
is to food webs. *
Answer:
Competition occurs when individuals of different species struggle to obtain the same resource in an ecosystem (such as food or living space). Adaptations, such as physical mutations and behavior modifications, can help an organism outcompete its competitors.
Advertisements on the internet, television, and radio try to get you to buy something by making a claim or statement. These claims will often sound scientific. However, many advertisements make statements or conclusions that are not entirely true. Advertisements sometimes exaggerate, which means they make a statement that a product is or does more than is actually true.
When deciding if an advertisement is true, look for other data that supports these claims. The data should come from peer-reviewed journals or trusted science textbooks.
Research a product you see advertised. What claim does it make? Does other scientific data support this claim? Decide if the claim is factual, fictional, or an exaggeration. List your sources to show your inference.
Advertisements on the internet, television, and radio try to get you to buy something by making a claim or statement. These claims will often sound scientific and it makes the claim as factual, and fictional as well as an exaggeration.
Advertising must be truthful and must not deceive consumers. If important details are omitted or the assertion implies something untrue, it may be misleading. For instance, if substantial and hidden fees are payable upon lease signing, a leasing advertisement for an automobile that advertises "$0 Down" may be deceptive.
Additionally, statements must be supported, particularly when they relate to performance, safety, or health. Depending on the product, the claims, and what experts deem necessary, the type of evidence may vary. Following is the list of sources to show the inference of the product advertised,
Advertisements cannot be unjust; they must be genuine and non-deceptive; they must also be supported by proof. Ads promoting specialist products, including consumer leases, credit, 900 phone lines, and items sold through mail order or telephone sales, are subject to additional rules. Additionally, each state has consumer protection regulations that apply to advertisements running there.Learn to know more about advertisements on
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Please help! I don’t know what 4 and 5 is
lim f(x) x-3 lim f(x) x-1– lim f(x) x-17+ lim f(x) x3 lim f(x) x5
how do I find the limits using graphs
Explanation:
try this option (all the details are in the attachment).
how many elements are present in the compound
go play mine craft use code wild ............................
Is AgNo3 an allotrope or a polymorph?
AgNo3 is a polymorph as it can be many forms.
PolymorphA substance's capacity to crystallize into various crystalline forms is known as polymorphism. These crystal modifications are also referred to as polymorphs. Polymorphs behave differently in the solid state even though they are the same in the liquid or gaseous states.
Allotrope :The ability of some chemical elements to exist in two or more different forms, in the same physical state, is known as allotropy or allotropism. These forms are referred to as the element's allotropes. Allotropes are different structural modifications of an element in which the bonding between the atoms is altered.
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What is the overall chargeon particles with the subatomic makeups given if there are3 protons, 3 neutrons, and 2 electrons?
Answer:
+1
Explanation:
The neutrons do not affect the overall charge of the particle. Protons have a positive charge and electrons have a negative charge. Since the protons outnumber the electrons by one, there is an overall charge of +1.
Here is a more in depth explanation: if there are 3 protons, each which have a value of +1, the protons contribute a +3 charge. If there are 2 electrons, each which have a value of -1, the electrons contribute a -2 charge. When you add these two charges, you are left with an overall charge of +1 (+3 + (-2) = +1).
A stone with a mass of 10 kg sits on the ground. Gravity acts on the stone at a rate of 9.8 m/s2. What is the normal force
acting on the stone, keeping it at rest? (1 point)
O 1.02 N
O 9.8 N
O 10 N
O98 N
Answer:
Fn = m x g
Fn = normal force
m = mass of the stone
g = gravitational force acting on the stone.
therefore, fn=m x g = 10kg x 9.8m/s2 = 98 kgm/s2 or 98 N. Which is the same as 098 N.
Explanation:
A stone with a mass of 10 kg sits on the ground. The normal force acting on the stone, keeping it at rest, is 98 N. The correct option is D.
What is force?A force is a power that changes the position of an object. This results in the action or movement of any object. Force is calculated in Newton. The force can be calculated by multiplying the mass by acceleration.
Given, the mass of the stone is 10 kg
The gravitational force act at the rate of 9.8 m/s²
The formula is
Force = mass x gravitational rate
Fn = normal force
m = mass of the stone
g = gravitational force acting on the stone
So, fn = m x g
10kg x 9.8 m/s²
98 kg m/s²or 98 N
Therefore, the normal force acting on the stone, keeping it at rest, is 98 N. The correct option is D.
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Question in picture
Question in picture
The correct answer is a sphybridisation in z coordinate.So to form sphybridisation we need a s orbital and a p orbital .
In genomics, hybridization is the process by which two complementary single-stranded DNA or RNA molecules bond together to form a double-stranded molecule.The bonding is determined by the correct base pairing between the two single-stranded molecules. When one s and one p orbital in the same main shell of an atom combine to form two new equivalent orbitals, this is referred to as sphybridization.
The newly formed orbitals are known as sphybridized orbitals. It forms linear molecules with a 180° angle. Atomic orbitals include both s and p orbitals. These orbitals represent the most likely region in which we can find an electron of that atom. The primary distinction between s and p orbitals is that s orbitals are spherical in shape, whereas p orbitals are dumvell-shaped.So to form sp hybridisation we need a s orbital and a p orbital .
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DHMO can be lethal (deadly) to humans in small doses.
O True
O False
Yes, DHMO (Dihydrogen monoxide) can be lethal (deadly) to humans in small doses. It's true.
Briefing :Dihydrogen monoxide is a known cause of thousands of deaths each year and contributes significantly to the millions of dollars in environmental and property damage. Dihydrogen monoxide is known to pose several risks, including:
Death from accidental DHMO inhalation, even in small amounts.Solid DHMO exposure over an extended period of time harms tissues severely.A number of unpleasant, but typically not life-threatening, side effects result from excessive ingestion.Acid rain primarily consists of DHMO.Severe burns can result from DHMO gas.Causes soil erosion to occur.To know more about soil erosion :
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Determine the number of protons, neutrons, and electrons present in each of the atoms.
53 Cr
protons:
neutrons:
electrons:
Answer:
protons: 24
neutrons: 29
electrons: 24
Explanation:
3 The chemical compositions of two substances, W and X, are given.
W Na(AISI³)O8
X Ca(Al₂Si₂)08
Which statements are correct?
1 W and X contain the same amount of oxygen.
2 W contains three times as much silicon as X.
3 X contains twice as much aluminium as W.
A) 1 and 2 B) 1 and 3 C) 2 and 3 D) 1, 2 and 3
Answer:
D) 1,2 and 3 is the answer
Which of the following atoms has the highest ionization energy?
Aluminum (Al)
Sodium (Na)
Phosphorous (P)
Magnesium (Mg)
The phosphorus atom have has the highest ionization energy .
The ionisation energy of atoms are given as ,
Sodium ( Na ) = 496
Phosphorus ( P ) =1012
Magnesium (Mg ) =738
Aluminium ( Al ) = 578
Since , phosphorus atom have half filled configuration . It is very difficult to remove electrons from atoms having half filled configuration . Hence, it requires more energy .
The ionisation energy measures an element's ability to participate in chemical processes that call for the creation of ions or the donation of electrons. It is often connected to the type of chemical bonds that exist between the components in the compounds they form. See also electron affinity and binding energy.
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