Sulfur hexafluoride, SF6, is a very stable, nonflammable gas at room temperature. It
is used in many electronic products because it is a good electrical insulator.
Which statement describes the composition of sulfur hexafluoride?
Answers
The second answer choice is incorrect: while SF6 is indeed a compound that contains seven atoms, those atoms are not identical since one is a sulfur atom and six are fluoride atoms.
The third answer choice is incorrect: SF6 is not an element because it can be separated chemically into simpler substances that are elements. All the atoms comprising an element must have the same number of protons (the same atomic number); sulfur and fluorine have different atomic numbers. There is no single nucleus in SF6; the S and six F atoms each has their own nucleus.
The fourth answer choice is incorrect; SF6 contains no carbon atom, and so wouldn’t meet a central criterion for an organic compound. Moreover, the formula SF6 indicates that the sulfur atom is not bonded to any other atom apart from fluorine atoms, and there are no bonding electrons left on the S. There is no plausible reason to think that a molecule with such weak intermolecular attractions as SF6 would form long chains of S atoms. Indeed, in standard conditions, SF6 is a gas.
Sulfur hexafluoride (SF6) is a synthetic fluorinated compound with an extremely stable molecular structure.
What is sulfur hexafluoride?The first response option is the right one. A compound is a material made up of many atoms from various elements, such as SF6 (sulfur and fluorine).
The second option is wrong because, although SF6 does include seven atoms, those atoms are not all the same—six of them are fluoride atoms and one is a sulfur atom.
Because SF6 can be chemically divided into simpler chemicals that are elements, the third answer option is untrue. The six S and six F atoms each have their own nucleus, hence SF6 does not have a single nucleus.
Therefore, Sulfur hexafluoride (SF6) is a synthetic fluorinated compound with an extremely stable molecular structure.
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Related Questions
name the following compound Mol2
Answers
Answer:
you cant answer this
Explanation:
you left something out of the question
how many moles are in 566 grams of CO2? Molar mass of CO2 = 44.0 g/mol
Answers
Answer:
Co2 grams to moles
How many grams CO2 in 1 mol? The answer is 44.0095. We assume you are converting between grams CO2 and mole. You can view more details on each measurement unit: molecular weight of CO2 or mol This compound is also known as Carbon Dioxide.
Explanation:
Which figures are not significant? *
trailing zeros to the left of an invisible decimal point
leading zeros to the right of a decimal point
leading zeros to the left of a decimal point
all of the above
none of the above
Answers
Answer:
leading zeroes to the left of a decimal point. and trailing zeros to the left of an invisible decimal point.
Explanation:
All nonzero digits are significant figures. Example: 713 has three significant figures. 18,991 has five significant figures.Zeros located between two nonzero digits are significant figures. Example: 505 has three significant figures. 17,009 has five significant figures.Zeros at the ends of numbers are only significant if there is a decimal point in the number. Example: 502.00 has five significant figures (5,0,2,0,0). 5020 has three significant figures (5,0,2) 100,000 has one significant figure (1)Zeros that come before the first nonzero digit are not significant. Example: 0.0007 has one significant figure (7). 0.0970 has three significant figures (9,7,0)Q4) The changes that occur in an experiment that are directly caused by the experimenter (you) are called ___________.
Answers
Answer:
Independent Variables
Explanation:
These are changes that are made by the experimenter. They are factors that one is able to manipulate or control their values.
What’s the answer???
Answers
Answer:
Well I know that the first one is true.
Explanation:
Answer:
1. TRUE
2. FALSE
3. C
Explanation:
Write the balanced equation for calcium and aluminum chloride reacting in a single replacement reaction.
Answers
Answer:
Ca + AlCl3 = CaCl2 + Al - chemical equation balancer.
Explanation:
Gametes combine in sexual reproduction that creates a fertilized egg that will turn into a ____________.
Group of answer choices
seed
sporophyte
gametophyte
spores
Answers
Answer:
i assume that it would be a gametophyte.
Explanation:
HELPPPP!!!! Which statement about plants is accurate?
A.
Plants derive energy to grow from nutrients in the soil.
B.
Plants use sunlight and carbon dioxide to create food.
C.
Plants use oxygen and water to create food.
D.
Plants derive energy to grow from water and nutrients.
Answers
Answer:
B. Plants use sunlight and carbon dioxide to create food.
Explanation:
This process is called photosynthesis
N
a You might have heard the phrase 'hot air rises'. Name the process of transferring
energy using moving gas or liquid.
(1 mark)
Answers
I think the word you're looking for is convection :)
Why is the melting of an ice cube an example of a physical change?
A. because a new substance forms
B. because the change is reversible
C. because the melting ice releases energy
D. because the water has different properties than the ice
Answers
Answer:
The answer is C because the melting ice releases energy
Explanation:
An alloy of sodium and potassium is used as a coolant due to its
A.high thermal conductivity
B.physical state
C.high reactivity
D.all except c
Answers
Answer:
A
Explanation:
Because It's dense meaning that it doesn't burn
Explanation:
https://youtu.be/f_kgUUaMZlw
Determine the empirical and molecular formula for a compound containing 26.1
% carbon, 4.3% hydrogen, and 69.6% oxygen. Molar Mass = 138 g/mol.
Answers
determing that the compoumd formed is in 100%
therefore, 26.1 +4.3+69.6 = 100%
hence no need of adding O molecule
finding the numbr of moles of each element
no. of moles of C= given mass÷molar mass
=26.1÷12
=2.1 mol
no. of moles of H = given mass÷molar mass
=4.3÷1
=4.3 mol
no of moles of O =given mass÷molar mass
=69.6÷16
=4.3
the simplest whole nber of the element in the unknown compoumd is 1:2:2 of C:H:O
HENCE, the empirical formula is CH2O2
empirical formula mass of CH2O2 IS
=(12)+(2×1)+(16×2)
12+2+32
46 G/MOL
N= molar mass of the compoumd ÷ emporical mass of the compoumd
N= 138÷46
N=3
molecular formula =N×empirical formula
=3 ×CH2O2
C3H6O6 is the molecular formula
(tartonic acid)
hope it helped u!
2NaHCO3 + 3CaCl2 → CaCO3 + 2NaCl + H2O + CO2
Which statement is true about the equation above?
There are 3 chlorines on the reactant side and 3 chlorines on the product side of this equation.
There are 3 chlorines on the reactant side and 3 chlorines on the product side of this equation.
There are 3 calciums on the reactant side and 2 calciums on the product side of this equation.
There are 3 calciums on the reactant side and 2 calciums on the product side of this equation.
There are the same number of oxygen atoms in the reactants and the products. There are the same number of oxygen atoms in the reactants and the products.
This equation does not follow the law of conservation of mass.
Answers
Answer:
There are the same number of oxygen atoms in the reactants and the products
Explanation:
However the equation is not balanced
3 Ca on one side and 1 on the other
CHEMISTRY
OXIDATION NUMBERS
please help me solve only 3 of those oxidation numbers
NO2
Cr2O72-
KCl
NH3
CaH2
SO42-
Na2O2
SiO2
CaCl2
Answers
Answer:
NO2=Nitrogen dioxide
KCL=potassium chloride
NH3=Ammonia
The table below shows the main components of Earth's atmosphere. What is the solvent in air? What are the solutes?
Answers
Answer:
The correct answer is - nitrogen is solvent and other gases present in the air are solutes.
Explanation:
As it is given and we know that the earth's atmosphere is made up of various gases including nitrogen, oxygen, carbon dioxide, argon, and water vapor, however, the major part of the atmosphere is made up of nitrogen.
Air is a homogenous mixture of gases and most of the part of the air is, 78.08 percent, nitrogen makes it solvent and other gases mixed with nitrogen are solutes including carbon dioxide and oxygen.
Which of the following shows the conservation of mass during cellular
respiration? *
O 6 H2O + C6H1206 – 6 02 + energy
O C6H1206 +6 02 - 6 CO2 + 6H20 + energy
O 6 CO2 + 6 H20 + energy - C6H1206 + 6 02
O 3 CO2 + 3 H20 + energy - 3 C6H1206 +3 02
Answers
Answer:
C6H12O6 + 6O2 - 6CO2 + 6H2O + ENERGY
Explanation:
Let me know if I'm right
I need help with the questions in the picture. Please show workings.
Answers
Explanation:
you need to review these formulas
2Fe2O3+3C_4Fe+3 CO2 how many moles of Carbon are needed to produce 1.9 moles of iron (Fe)?
Answers
how do we know that all the continents were all together at one point in time. writing prompt and it has to be at least 7 sentences
Answers
Answer:
We can tell by how the continents look. Scientists who propose the pangea theory have said this. You can see for yourself because all the continents look like puzzle pieces you could put together. Scientists can also tell from the species. For example, let's say a scientist found a bone of a creature at the edge of a continent, the edge of another would have the same species. They have also calculated that the continents in itself are still splitting apart, but very slowly. The reason they split up was because tectonic plate movements.
What is defined as a state of matter with a defined volume and shape?
A. Gas
B. Liquid
C. Plasma
D. Solid
Answers
Answer:
gas is the state of matter with a defined volume and shape
Consider a star with a surface temperature of 12,000
K. According to the graph, the star's peak wavelength
is in the
A) ultraviolet range.
B) radio wave range.
C) visible light range.
D) infrared range.
Answers
Answer:
a
Explanation:
Answer:
A. ultraviolet range
Explanation:
Proxima Centauri is the nearest star to Earth, besides the sun. What can you predict about its brightness compared to other stars? A. Proxima Centauri would be one of the brightest stars in the night sky. B. Proxima Centauri would have the same brightness as other stars in the night sky. C. Proxima Centauri would be one of the dimmer stars in the night sky. D. There is not enough information to make this prediction.
Answers
Answer:
ITS D
Explanation:
Answer:
I did the test and the answer is A.
How many moles each element are in a mole of methane?
Answers
[tex] \large \mathcal{ANSWER}[/tex]
This means that the mass of one methane molecule is 12.011 u + (4 × 1.008u), or 16.043 u. This means that one mole of methane has a mass of 16.043 grams. A mole can be thought of as two bags of different sized balls. One bag contains 3 tennis balls and the other 3 footballs.
Samples of helium (He), nitrogen (N 2 ), and methane (CH 4 ) are at STP. Each contains 1 mole or 6.02 × 10 23 particles. However, the mass of each gas is different and corresponds to the molar mass of that gas: 4.00 g/mol for He, 28.0 g/mol for N 2 , and 16.0 g/mol for CH 4 .
Identify two sources of heat that melt rocks beneath Earth's surface.
Answers
Answer:
magma, melting
If I use a plastic comb and run it "vigorously" through my hair, then hold it next to small torn pieces of tissue paper, what would happen?
Answers
If I use a plastic comb and run it "vigorously" through my hair, then hold it next to small torn pieces of tissue paper then paper will get attach to the comb.
What is static electricity?Static electricity is a kind of electricity which will observe when transfer of charged particles is observed from one object to another object.
If we use a plastic comb and run it vigorously through our hairs then static electricity is generated due to the transfer of electrons from the atoms present in the hairs towards the plastic comb as a result of which negative charge is bear by the comb and positive charge is bear by the hairs. Then when we hold this comb near a tissue paper then it produces induced charge and show attraction towards the tissue paper.
Hence, when we hold a combed plastic comb near tissue papers then paper will get attach to the comb.
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is Nb6+ a oxidizing agent?
Answers
Answer:
yes
Explanation:
because of high positive charge of Nb6+ delta G is more negative for Nb6+ as an oxidising agent♡
Answer:
So Sn2+ is a reducing agent (oxidises itself to Sn4+ hence becoming stable) while Pb2+ is already stable so it neither undergoes oxidation nor reduction.
Make a diagram showing how communication satellites could be used to relay
information from a broadcasting station in new york to a receiving station in
london.
Answers
Answer:
Explanation:
Satellite acts as a relay station for earth sources. A transmission station sends the information to the satellite, which in turn retransmits to the receiving stations. The original signal being transmitted from the earth station to the satellite is called uplink of 6 GHz The retransmitted signal from the satellite to the receiving station is called downlink of 4 GH frequency. The transponder is the transmitter-receiver combination in a transponder.
Balance the equation c2h2(g)+o2(g)-->co2(g)+h2o(g)+heat
Answers
Answer: 2C2H2 (g) + 5O2 ----> 4CO2 (g) + 2H20 (g) + heat
Explanation:
Ocean water density varies more at the the poles throughout the year than at the equator.
Lesson 2.08
True
False
Answers
Answer:
true
Explanation:
i go to k12
Ocean water density varies more at the the poles throughout the year than at the equator. Therefore, the given statement is true.
What is density?Density is the mass of a specific material per unit volume. d = M/V, in which d is density, M is weight, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density. For instance, whereas Earth has a density of 5.51 grams, water has a density of 1 milligrams.
Particle density, which is typically represented as n, describes the number of particles per volume instead of the density of either a single particle. Ocean water density varies more at the the poles throughout the year than at the equator.
Therefore, the given statement is true.
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Shown above is information about the dissolution of AgCl(s) in water at 298K. In a chemistry lab a student wants to determine the value of s, the molar solubility of AgCl, by measuring [Ag+] in a saturated solution prepared by mixing excess AgCl and distilled water. How would the results of the experiment be altered if the student mixed excess AgCl with tap water (in which [Cl−]=0.010M) instead of distilled water and the student did not account for the Cl− in the tap water?
Answers
Answer:
Value for K would be too small. Less AgCl would dissolve due to the common ion effect due to the presence of Cl- in the water.
Explanation:
Think of this through the lenses of a shifting problem. Cl- ions are a product in this situation and increasing its concentration would shift the reaction back to the solid AgCl. In this specific case, due to Cl- ions, AgCl would dissolve less to maintain equilibrium and as a result, the concentrations of Ag+ and Cl- ions would be lower than normal making a smaller K value.
In the solution of AgCl in tap water, the dissociation constant K has been decreased.
The dissolution of silver chloride in water results in the formation of silver ions and chloride ions.
The dissociation constant has been the amount of compound that has been dissociated into the constituent ions at equilibrium.
Dissociation constant for AgClThe dissociation constant has been dependent on the number of ions in the solution that has been present.
The common ion effect has been defined as the change in the dissociation constant for the compound with the presence of common ions in the solution.
The dissociation of AgCl in tap water has been resulted with presence of Cl ions in the solution. There has been early reach to the equilibrium in tap water.
Thus, with the solution of AgCl in tap water, the dissociation constant K has been decreased.
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