sulfide mineral is made of from metal and sulfphur
Sulfide, also written sulphide, is a category of chemicals that contain sulfur and one or more metals. The majority of sulfides have basic structural characteristics, great crystallographic symmetry, and numerous metal-like characteristics, such as metallic lustre and electrical conductivity.
Sulfides include, for instance, chalcopyrite, galena (the primary ore mineral for lead and silver), and cinnabar (the primary ore mineral for mercury) (which provides copper).
Sulfide minerals are composed of sulfur and one or more metals; sulfarsenides have some of the sulfur replaced with arsenic.
To learn more about sulphide please visit
https://brainly.com/question/28594165
#SPJ4
THREE PART QUESTION FOR 30 POINTS!
Name the above compound, identify each substituent as axial or equatorial, and tell whether the conformation shown is the more stable or less stable form.
1. Give the IUPAC name
2. The substituents R1 and R2 are designated in the order they appear in the IUPAC name. Name their positions as axial or equatorial.
3. Is the confirmation show the MOST or LEAST stable?
The name of the compound is 1 chloro-3- cyclohexane and it is most stable in the equatorial conformation.
What is a model?A model is a representation of a compound. The model shows us the way that the atoms in the compound are arranged. Thee bonds could be shown by the use of the following kinds of model in science;
1) The ball and stick model
2) The space filling model
Now we know that the model could both serve as a tool for representation as well as a tool of explanation. We could use the model of the molecule to understand the chemical interactions that could be possible for the molecule that is under study.
What we have here is a ball and stick model of the compound 1 chloro-3- cyclohexane
The conformation of the molecule is an indicator of how stable the compound would be. In this case, the more stable conformation of the compound would be the equatorial conformation.
Learn more about conformation:https://brainly.com/question/25324769
#SPJ1
A 39.2 g sample of copper took
up the 4.4 cm3 of space.
What is the density of the
copper piece in g/cm3?
[?] g/cm³
the tonths placo
The Density of copper sample is 8.9 g/cm³ to the nearest tenth.
What is density?Density is the ratio of the mass of a substance and the volume occupied by that substance.
Density measures how tightly-packed the particles in a substance are.
The more tightly-packed the particles are, the denser the substance will be.
The formula for calculating the density of a substance is given below as:
Density = mass/volumeDense substances have smaller volumes but greater masses.
The mass of the copper sample = 39.2 g
The volume of the copper sample = 4.4 cm³
Hence, the density of the copper sample will be:
Density of copper sample = 39.2 g/4.4 cm³
Density of copper sample =8.9 g/cm³
In conclusion, density is a ratio of mass and volume.
Learn more about density at: https://brainly.com/question/1354972
#SPJ1
How many moles of AlCl3 are there in 1.81*1041 molecules of AlCl3?
There are 3.01 × 10¹⁷ moles of AlCl₃ in 1.81 × 10⁴¹ molecules of AlCl₃.
How to calculate moles?The moles of a substance can be calculated by dividing the number of molecules in the substance by Avogadro's number as follows:
no of moles = no of molecules ÷ 6.02 × 10²³
According to this question, there are 1.81 × 10⁴¹ molecules of AlCl₃. The number of moles in this substance can be calculated as follows;
no of moles = 1.81 × 10⁴¹ ÷ 6.02 × 10²³
no of moles = 0.301 × 10¹⁸
no of moles = 3.01 × 10¹⁷ moles
Therefore, there are 3.01 × 10¹⁷ moles of AlCl₃ in 1.81 × 10⁴¹ molecules of AlCl₃.
Learn more about number of moles at: https://brainly.com/question/19143059
#SPJ1
67. When potassium chlorate is subjected to high tempera- tures, it decomposes into potassium chloride and oxygen.
(a) Write a balanced equation for the decomposition.
(b) In this decomposition, the actual yield is 83.2%. If 198.5 g of oxygen are produced, how much potassium chlorate decomposed?
The balanced chemical equation for the decomposition is 2 KClO3 (s) ---> 2 KCl (s) + 3 O2 (g) and the amount of potassium chlorate decomposed is 609.12 g KClO3
On using MnO2 as a catalyst, when potassium chlorate (KClO3) is heated, it breaks down to form potassium chloride and oxygen gas.
Balanced equation of decomposition is given by-
2KClO3-->2KCl+3O2
Given data ;
Actual yield = 83.2 %
Oxygen produced = 198.5 g
Amount of oxygen
= ( 198.5 g O2 / 0.832 )
= 238.58 g O2
So, potassium chlorate decomposed
= 238.58 g O2 × (1 mol O2 / 32 g O2 ) ×( 2 mol KClO3 / 3 mol O2 ) × ( 122.55 g KClO3 / 1 mol KClO3 )
= 609.12 g KClO3
A balanced chemical equation contains equal number of atoms on both sides.It follows law of conservation of mass.To learn more about balanced chemical equation visit:
https://brainly.com/question/28294176
#SPJ1
5. Density: A Cylinder with a diameter of 300 mm and a height of 25 cm. The cylinder is made of
lead. What is the mass of the cylinder? (1 Point)
51,043 grams
160.276 grams
427,404 grams
200,351 grams
What is the standard free energy change for the following reaction: Glu -> G6P A G° =?
The standard free energy change for the following reaction is -16.7 KJ/mo
Glucose+ ATP ⇒ glucose 6-phosphate + ADP
this is the reaction given
Glucose +Pi ⇒ glucose 6-phosphate ΔG° = 13.8kj/mol
ATP ⇒ ADP + Pi ΔG° = -30.5 KJ/mol
The desired reaction can be obtained by adding the two reaction given in the statement.
So the standard free energy change of the desired reaction is given by adding the standard free energy change of both these reactions.
So here :
= 13.8 KJ/mol + (-30.5 KJ/mol)
= -16.7 KJ/mol
standard gibbs free energy is the energy available to do work ,ΔG- (kJ, kJ/mol)ΔG° equation , ΔGrxn = ΔG° products - ΔG° reactants (take moles into account)To know more about standard free energy visit :
https://brainly.com/question/13625901
#SPJ9
HELP!! PLEASE ANSWER FAST!!
Which pair of compounds have the same empirical formula? (5 points)
Group of answer choices
C2H6 and CH
CH3 and C2H6
C3H8 and C3H
C2H2 and C2H
The pair of compounds with same empirical formula will be CH3 and C2H6
What is Empirical formula?Empirical formula of a specific compound is defined as the positive integer ratio of atoms that can be found in that specific compound.
Therefore, from the given option above,
The pair of compounds has the same empirical formula is
CH3 and C3H6
The empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a compound.
The empirical formula of a compound can be exemplified using sulfur monoxide, which would simply be SO, as is the empirical formula of disulfur dioxide, S₂O₂.
Learn more about empirical formula at:
https://brainly.com/question/13058832
#SPj1
CH3 and C2H6 will be the compounds that have the same empirical formula one another. Option B
What exactly does "empirical formula" mean?The positive integer ratio of atoms that can be found in a certain compound is what is meant to be understood when speaking about the empirical formula of that particular chemical.
Therefore, based on the alternative presented before,
The empirical formulas of the two compounds are identical to one another.
CH3 as well as C3H6
The empirical formula of a chemical compound is the most straightforward representation of the atomic number distribution in the molecule as a whole.
An example of an empirical formula for a molecule is the chemical symbol SO, which stands for sulfur monoxide. Another example is the empirical formula for disulfur dioxide, which is written as S2O2.
Find out more about the empirical formula by going to:
brainly.com/question/13058832
#SPj1
Can can someone help me 49-58 I give Brainly
Answer:
58.) 2,727.9
Explanation:
although I am not sure but that's what my calculations say so
- - - - - - - - - - - - - - - - - - - - - - - -
For 58:
Pretend some zeros aren't there. It helps quite a bit!
For example:
3000 - 272.1 = 2730
300 - 27.21 = 273
Just don't forget to put them back, and it works great!
- - - - - - - - - - - - - - - - - - - - - - - -
~pinetreee
As computer processor speeds increase, it is necessary for engineers to increase the number of circuit elements packed into a given area. Individual circuit elements are often connected using very small copper “wires” deposited directly onto the surface of the chip. In some current generation processors, these copper interconnects are about 65 nm wide. What mass of copper would be in a 1-mm length of such an interconnect, assuming a square cross section? The density of copper is 8.96 g/cm3.
A circuit for an electronic device is made up of separate electronic parts like diodes, resistors, transistors, capacitors, inductors, and transistors that are connected by conductive wires or traces that allow current to flow.
What mass of copper would be in a 1-mm length of such an interconnect, assuming a square cross section?
Given that wire has a square cross section, its height and breadth are equal in length.
The logic circuitry that reacts to and processes the fundamental commands that power a computer is known as a processor (CPU). Given that it interprets the majority of computer commands, the CPU is regarded as the primary and most important integrated circuits (IC) chip in a computer.
Copper interconnects are interconnects used in semiconductor technology. They serve to cut down on power usage and propagation delays in silicon integrated circuits (ICs).
To know more about Computer processor, click on the link below:
https://brainly.com/question/14744970
#SPJ9
Name the following cyclalkane (image attatched)
The IUPAC name of the compound is 1- ethyl-3-methyl-cyclohexane.
What is an alkane?An alkane is a compound that is composed of only carbon and hydrogen. The alkane could be an acyclic compound or a cyclic compound. A cyclic compound is one that has the carbon atoms arranged to form a given shape.
The compound now has the carbon atoms at the vertices of the shape. There could also be substituents that are attached to the cyclic compound. If we look at the image as shown, we can see that position 1 has the ethyl substituent and position 3 has the methyl substituent.
With this in mind, we could now properly name the compound as; 1- ethyl-3-methyl-cyclohexane.
Learn more about cyclic compounds:https://brainly.com/question/28195110
#SPJ1
What could be a third quantum number of a 2p3 electron in phosphorus,
15²2s²2p63s²3p³?
A. m/= -1
OB. m/= 2
OC. m₁= 3
OD. m/= -2
The third quantum number of a 2p[tex]^{3}[/tex] electron in phosphorus is ml= -1.
Quantum numbers are the set of numbers describe the position of electron and energy of electron in an atom.there are four types of quantum numbers.
Electronic configuration of phosphorus is 1s[tex]^{2}[/tex] 2s[tex]^{2}[/tex] 2p[tex]^{6}[/tex] 3s[tex]^{2}[/tex] 3p[tex]^{6}[/tex]
Quantum numbers for 2p[tex]^{3}[/tex]
1) Principal quantum number (n) = 2
2) Azimuthal quantum number (l) = (n-1) = 1
3) magnetic quantum number (ml) = -l to +l = -1 , 0 , +1
form the given option , ml = -1 for n= 2 , l = 1
Thus,The third quantum number of a 2p[tex]^{3}[/tex] electron in phosphorus is m= -1
To learn more about Quantum numbers here
https://brainly.com/question/25117259
#SPJ1
Answer: A. m/= -1
Explanation:
Charlotte is driving at 67.5 mi/h and receives a text message. She looks down at her phone and takes her eyes off the road for 4.89 s. How far has Charlotte traveled in feet during this time?
484.11 feet
Charlotte is driving at 67.5 mi/h
She looks down at her phone and takes her eyes off the road for 4.89 s
so from the above statements, we got
speed of car = 67.5 mi/h
time = 4.89 s
we have to tell distance
so, from the formula
distance = speed * time
let us first convert speed from mi/h to feet/s
1 mile = 5280 feet
1 hour = 3600 sec
speed = 67.5 * 5280/3600
speed = 356,400/3600
speed = 99 feet/s
distance = 99 feet/s * 4.89 s
distance = 484.11 feet
distance is defined as speed * timeTo know more about distance visit :
https://brainly.com/question/15172156
#SPJ9
Geese flying south for the winter is which kind of adaptation?
Geese flying south for the winter is migration kind of adaptation the annual, large-scale movement of birds between their breeding (summer) homes and their nonbreeding (winter) grounds.
How come adaptations occur?Adaptation results from evolution. Evolution causes a species to change over a long period of time. Usually, mutations or unintentional gene alterations result in adaptations. Depending on the mutation, a plant or animal may be able to live longer than other members of its species.
Which two adaptation kinds are there?Adaptations might be behavioural or physical. Any structural change made to a body part qualifies as a physical adaptation. An animal will often make a response in response to some sort of external stimulation.
To know more about adaptation visit:
https://brainly.com/question/13678169
#SPJ9
Mark is looking for information on various types of plants. Typing which words will help him make his search on the Internet easier and faster? A. “plants” B. “plants we know” C. “plants on earth” D. “different types of plants”
The words which will help him make his search for various types of plants on the Internet easier and faster is “different types of plants” and is denoted as option D.
What is Search?This is defined as the process in which something is sought for carefully through the use of different types of techniques so as to make it easier.
In the case of Mark looking for information on various types of plants, the best words to type will make his search on the Internet easier and faster is “different types of plants” as it contains all the necessary keywords which is used by the search engine to bring out the result.
Read more about Search here https://brainly.com/question/504518
#SPJ1
Cells need a small amount of energy to function? true or false
Answer:
False
Explanation:
They need a large amount of energy because they're constantly working
Glutaronitrile, a foul-smelling substance produced by the action of bacteria on meat, contains 63.81 % C , 6.42 % H , and 29.77 % N by mass; its molar mass is 94.1 g/mol .
100 g of Glutaronitrile contains 63.81 % C, 6.42 % H, and 29.77 5 N by mass. The molar mass of carbon is 12 g/ mol, hydrogen is 1 g/ mol and the molar mass of Nitrogen is 14 g/ mol.
What is the chemical formula?The chemical formula of a compound shows the number of atoms in the formula.
The number of moles of carbon present is 63.81/ 12 = 5.31 mol
The number of moles of hydrogen present is 6.42/ 1= 6.42 mol
The number of moles of Nitrogen present is 29.77/ 14 = 2.12 mol
Hence, the molar ratio C:H :N = 5: 6: 2
The empirical formula of Glutaronitrile is C5H6N2.
Therefore, 100 g of Glutaronitrile contains 63.81 % C, 6.42 % H, and 29.77 5 N by mass. The molar mass of carbon is 12 g/ mol, hydrogen is 1 g/ mol and the molar mass of Nitrogen is 14 g/ mol.
To learn more about chemical formulas, refer to the link:
https://brainly.com/question/11995171
#SPJ1
1) Stoichiometry refers to the calculation of the amounts of————and———— involved
in a chemical reaction.
Help asap with the chem homework please
The masses and volume of the required reagent are as follows:
Mass of KCIO₃ required = 6.53 gmass of BaSO₄ precipitate formed = 1.02 gVolume of KCl required = 46.0 mLWhat is the mass in grams of KCIO₃ needed to produce 2.56 grams of O₂?The mass in grams of KCIO₃ needed to produce 2.56 grams of O₂ is determined from the mole ratio of the reaction as given in the equation of reaction below:
2 KCIO₃ (s) → 2 KCl (s) + 3 O₂ (s)
From the equation of reaction, 2 mole of KCIO₃ produces 3 moles of O₂.
Moles of O₂ in 2.56 grams = 2.56/32
Moles of O₂ in 2.56 grams = 0.08 moles
Moles of KCIO₃ required = 0.08 * 2/3
Moles of KCIO₃ required = 0.0533 moles
molar mass of KCIO₃ = 122.5 g/mol
Mass of KCIO₃ required = 0.0533 * 122.5
Mass of KCIO₃ required = 6.53 g
Mass of precipitate formed when 25.00 mL of 0.200M BaCl₂ and 35.00 ml. of 0.125 M Na₂SO₄ are mixed is determined as follows:
BaCl₂ (aq) + Na₂SO₄ → BaSO₄ (s) + 2 NaCl (aq)
Moles of BaCl₂ reacting = 25.00 mL * 1 L/1000 mL * 0.200M
Moles of BaCl₂ reacting = 0.005 moles
Moles of Na₂SO₄ reacting = 35.00 mL * 1 L/1000 mL * 0.125 M
Moles of Na₂SO₄ reacting = 0.4375 moles
Na₂SO₄ is the limiting reactant and moles of BaSO₄ precipitate formed = 0.4375 moles
molar mass of BaSO₄ = 233 g/mol
mass of BaSO₄ precipitate formed = 0.4375 moles * 233 g/mol
mass of BaSO₄ precipitate formed = 1.02 g
Volume of 0.250 M KCl (aq) that will completely react with 50.0 ml.
of 0.115M Pb(NO₃)₂ (aq) is determined as follows:
Pb²⁺ (aq) + 2Cl⁻ (aq) → PbCl (s)
Moles of Pb(NO₃)₂ = 50 ml * 1 L/1000 mL * 0.115 M
Moles of Pb(NO₃)₂ = 0.00575 moles
Moles of KCl required = 2 * 0.00575 moles
Moles of KCl required = 0.0115 moles
Volume of KCl required = 0.0115/0.250
Volume of KCl required = 0.046 L
Volume of KCl required = 46.0 mL
Learn more about volume and moles at: https://brainly.com/question/24322641
#SPJ1
How many grams are there in 7 moles of c4h8
Answer:
392 grams
Explanation:
Begin by finding the molar mass. You do this by adding the atomic mass of each element in the compound.
So, add 4(12)+8(1)=56 grams C4H8
Next, set up an equation.
We start with 7 moles of C4H8, and we want to convert moles to grams. We will use the molar mass for that.
So 7mol C4H8/1 x 56grams C4H8 per/1 mole C4H8= 392 grams of C4H8 per seven moles of C4H8
What does law not just explain but describes
What do Uranus’s and Neptune’s atmospheres both contain?
Answer:
Methane
Their atmospheres both contain Methane, which makes them appear blue in color. Neptune is believed to have an active and changing atmosphere. Uranus and Neptune have rings and many moons and are part of a group called the Outer planets.
Explanation:
Answer:Uranus and Neptune have similar masses and internal compositions. Their outer atmospheres are composed of hydrogen, helium and methane, while their mantles are a combination of water, ammonia and methane ices, and their cores are a mix of rock and ice.
Structure. Uranus is one of two ice giants in the outer solar system (the other is Neptune). Most (80% or more) of the planet's mass is made up of a hot dense fluid of "icy" materials – water, methane, and ammonia – above a small rocky core.
Explanation:
how much is the velocity of a body when it travals 600 m in 5 minutes
Answer:
7.2km/h.
Explanation:
Therefore, we get the speed of the man crossing a 600m long street in 5 minutes as 7.2km/h.
The speed of light is approximately 3.0 x 108 m/s. How many miles will
light travel in one hour? (1 mile = 1.61 km)
Light can travel up to 671 million in the time of one hour.
What is the speed of light?speed of light, the rate at which light rays move through various substances. Specifically, the speed of light within a vacuum is presently calculated to be 299,792,458 meters per second.
One of nature's basic constants is the speed of light. Its importance extends well beyond its use in characterizing one aspect of electromagnetic waves. It acts as the universe's only limiting velocity, setting an upper limit on both the speed of all material atoms and the speed at which signals may travel. The speed of light (c) acts as a proportional constant in the well-known relativity equation, E = mc^2, connecting the heretofore dissimilar ideas of mass (m) and energy (E) (E).
Therefore, the speed of light is 671 miles per hour.
Read more about the speed of light, here
https://brainly.com/question/394103
#SPJ1
An empty beaker weighs 44.19 g.
When completely filled with water, the beaker and its contents have a total mass of 370.65 g. What volume does the beaker hold? Use =1.00 g/mL as the density of water.
volume: mL
How much would the beaker and its contents weigh if it was completely filled with mercury? The density of mercury is =13.5 g/mL.
total mass:
The volume of beaker is 326.46 mL.
What is the volume of the beaker?
The volume of a substance is the amount of space a given mass of the substance occupies.
Volume is related to mass and density of a substance by the following formula:
Volume = mass/densityThe volume of the beaker is calculated as follows:
Volume of beaker = volume of water
The mass of the empty beaker = 44.19 g.
Mass of the beaker + water when filled completely = 370.65 g
mass of water = 370.65 - 44.19 = 326.46 g
density of water = 1 g/mL
Volume of water = mass/density
Volume of water = 326.46 g/1 g/ml
Volume of water = 326.46 mL
Volume of beaker = 326.46 mL
Learn more about volume and density at: https://brainly.com/question/1978192
#SPJ1
A golf ball and a ping pong ball might be about the same size and shape. Which measurement would be similar?
(A) volume
(B) density
(C)mass
(D) weight
Answer:
option a
volume
Explanation:
as they differ in mass/weight ,density is not possible
A moon rock collected by a U.S. Apollo mission is estimated to be 3.90 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of Pb206 in the rock, if it currently contains 1.300 g of U238 ? The half-life of U238 is 4.47×109 years .
The current mass of 206Pb per 1.305g of 238U in the rock is 1.037 grams
To be able to solve this question, we need to know the rate constant and the half-life of the radioactive isotope.
What is the rate constant?
From the first order of kinetics, the rate constant is the proportionality constant in relation to the half-life.
It can be expressed by using the formula:
Now, from the parameters given:
The mass of 238U = 1.300 g
Suppose we assume that the mass of 206Pb = x
Therefore, the equation for the decay constant can be computed as:
x = 2.503 - 1.300
x = 1.203
Now, the mass of the 206Pb is calculated as:
= 1.203 grams
Learn more about rate constant here:
brainly.com/question/26127112
#SPJ9
how to calculate the PH value of a solution in which [OH-]=1.49/10
as per the given values ,ph of this solution is 13.18
We have [OH−]=1.49 x10⁻¹ M
Using formula, the pOH is
:pOH=−log[OH−]
=−log(1.49 x10⁻¹ M)≈ 0.82
Now, at any temperature, pH+pOH=pKw
.Assuming standard conditions, pKw=14 .
As such, the pH is ==> pH+pOH=pKw
pH=pKw−pOH
=14-0.82
≈13.18
pH is a measure of acidic/basic nature of solution . It ranges from 0 - 14, with 7 being neutral. pH of less than 7 means acidity, whereas a pH of greater than 7 basic solution . pH is a measure of the relative amount of free hydrogen and hydroxyl ions in the water
.
Learn more about ph calculations here-
https://brainly.com/question/26424076
#SPJ9
Rutherford believed the nucleus of an atom was massive and dense. Does this data support or refute this?
PLS answer rn
Answer: He concluded it was dense but not massive
Explanation: Rutherford concluded that his metal foil experiment was that most of an atom was empty-spaced with a tiny, dense, positively charged nucleus at the center that contains the mass of most atoms.
Hope this Helps u3u
Do two objects with the same mass always have the same volume? Explain
Answer:
They have same volume
Explanation:
[tex]{ \tt{volume = \frac{mass}{density} }} \\ [/tex]
These objects will have the same volume (amount of space occupied) irrespective of their shapes. This occurs if only occupy fluids of the same density.
Repeated observations have consistently
shown that oppositely charged objects
attract each other.
Repeated observations have consistently shown that oppositely charged objects attract each other and can be considered Law.
The proper sequence of steps inside the medical technique is to look at a phenomenon, develop speculation, design and carry out a Law experiment to check the speculation, examine and interpret statistics, and finally proportion the effects with different scientists. Experiments are hardly ever accurate, so it's important to hold testing a hypothesis. Scientists can learn experimental strategies via repeated checking out of a hypothesis.
Repeated observations help determine whether or not the speculation is constantly genuine in different instances. a systematic idea is a properly substantiated explanation of some factor of the herbal world, primarily based on a body of statistics that have been repeatedly confirmed via statements and experiments. Such reality-supported theories are not guesses but reliable money owed by the real international. scientific theories may be changed or changed while new data disproving the modern principle turns into be had.
Learn more about Observations here:-https://brainly.com/question/3749398
#SPJ9