Answers
Answer:
2-Methylhexane
Because Ethylexane does not have hydrogen molecules neither,also it only has 2 options but they're just repeated
Related Questions
Explain how the particles of air inside the balloon create pressure
Answers
Inside the balloon, the gas particles collide with the balloon's inner walls. ... As the molecules heat up, they move faster and strike the inside wall of the balloon harder. This increased motion of the gas particles increases the force on an area of the balloon, producing a rise in the pressure.
mark me brainliestttt :))
Which human organ turns the food we eat into a liquid mixture?
Large intestine
Liver
Pancreas
Stomach
Answers
Answer:
the digestive system
Explanation:
The digestive system is the stomache
it breaks down the food
makes glucine
creates energy
Stomach
Explanation:
When food enters your stomach, it mixes the foods and liquids with digestive juices.
is how much a material opposes electric current.
*
insulator
conductor
resistance
short circuit
Answers
Answer:
Resistance
Explanation:
Resistance is the measure of the opposition of current in a circuit.
If 34.9g of water is measured out, how many moles is that?
Answers
Answer:
1.94 moles
Explanation:
because moles =mass/mr
=34.9/18
which gives 1.938 so we round it up to 1.94
mr of H2O is 18
hope this helps :)
1.94 moles of water in 34.9 g of water.
Number of moles:It is defined as given mass over molar mass.
Molar mass = 18 g/mol
Number of moles = Given mass / Molar mass
Number of moles = 34.9 g / 18 g/mol
Number of moles = 1.94 moles
Thus, 1.94 moles of water in 34.9 g of water.
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Question 1
Part A
Describe the sequence of adding ingredients to make the recipe for condensed tomato soup. To mix the ingredients, you have an industrial-sized vat with a capacity of 800 L. You also have the ability to heat what is in the vat and/or stir the vat, both of which require energy and therefore, cost you money. Focus on the fact that the manufacturing process should be time efficient and cost efficient in terms of energy use. Be sure to refer to the solubility charts or graphs that you find for salt and sugar during your research. Finally, presume that the tomato powder has low solubility which is not temperature dependent.
Part B
What changes could be made to optimize the manufacturing process?
Answers
Answer:
Part A:
"360 grams of NaCl can be dissolved in 1 L water. So, 2000 grams sugar can be dissolved in 1 L water then we can say that the solubility of salt is lesser in water as to sugar and both heightened by increasing the temperature. If we make a batch of 800 L we can add sugar, 1600 kg at 25 0c. We can add salt is 288 kg at 25 0c and the ingredient tomato is having low solubility."
Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/8061-describe-the-sequence-of-adding-ingredients-to-make-the-recipe.html
Part B:
'Manufacturers can generate new value minimize cost and increase operational stability by focusing on 4 broad areas; Management, Supply Circle, Product Design, and Value Recovery.'
Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/2807911-what-changes-could-be-made-to-optimize-the-manufacturing-process.html
In order to make tomato soup, the salt NaCl is first added, then followed by sugar and finally the tomato powder.
What are the ingredients required in making tomato soup?Tomato soup is made of the following ingredients:
Tomato powder salt, NaClsugarIn order to make tomato soup, the salt NaCl is first added, then followed by sugar. This is to ensure increase in the boiling point of water and to reduce the heating time of the tomato soup.
The solution is heated to induce more dissolution if solute and finally the tomato powder is added.
In order to optimize the manufacturing process, changes should be made in the design, supply and composition of the soup.
Therefore, an optimized manufacturing process will reduce cost of production.
Learn more about tomato soup at: https://brainly.com/question/21475711
Write a hypothesis using IF-THEN - BECAUSE of statement.
Ahmed is curious about the death of the fishes in the ocean. He knows from his environmental chemistry class that pollutants like heavy metals can cause the rapid death of marine organisms. So, Ahmed did an experiment and obtained water samples. He tested that water contains a high amount of lead and chromium.
Answers
Answer:
The correct hypothesis would be - "if a water body contains a high amount of heavy metals such as chromium and lead then the death of the fishes will increase because lead and chromium affect the aquatic environment and gills of fishes."
Explanation:
Heavy metal like chromium in a high concentration can affect the gills of the fishes, it is seen in fishes that swim at the point of disposal of metals at thewater surface harm their gills. In high concentration, it becomes toxic for the fishes.
Lead also causes a negative impact on the aquatic ecosystem if accumulated in a high amount in the aquatic environment that leads to the death of the fishes.
How much heat, in Joules, is needed to raise the temperature of 150 g of manganese by 22°C? (cmanganese = 0.477 J/g°C)
Answers
Answer:
1574joules of heat
Explanation:
Q= mc( T2-T1)
=150 * 0.477 *22
=1574 joules
1574.1 Joules heat is needed to raise the temperature of 150 g of manganese by 22°C.
Specific HeatThe quantity or amount of heat per unit mass required to raise the temperature of a body by one degree Celsius is known as specific heat. The unit of specific heat are joules or calories per gram per degree Celsius. Specific heat is an intensive property.
Calculate heat to raise temperature
Relationship between temperature and heat is expressed as:
Q = mcΔT
where,
Q is heat energy in Joules (J)
m is mass (in grams)
c is specific heat in J/g°C
ΔT is change in temperature
Now, put the values in above formula, we get that
Q = 150 × 0.477 × 22
Q = 150 × 10.494
Q = 1574.1 Joules
Thus, we can say that 1574.1 Joules is needed to raise the temperature of 150g of manganese by 22°C.
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The data showed that recently the alligator population has decreased. How could the decrease in the alligator
population affect the other populations? Be sure to explain whether the gar population, the diving duck population, a
the crab population will change, and why.
Answers
Answer:
Since the alligator population decreased, this means there are less predators for the gar. Less predators for the gar mean the gar population will increase. More gar also means more competition for the diving duck in terms of animals that eat crabs, and thus the diving duck population will also decrease.
Explanation:
Hope this helped <3
How many moles of Chromium(III) nitrate (Cr(NO3)3) are produced when Chromium reacts with 0.85 moles of Lead(IV) nitrate (Pb(NO3)4) to produce chromium(III) nitrate (Cr(NO3)3) and lead? 4 Cr + 3 Pb(NO3)4 → 4 Cr(NO3)3 + 3 Pb
Answers
Answer:
[tex]0.64molCr(NO_3)_3[/tex]
Explanation:
Hello there!
In this case, according to the given chemical equation, it turns out possible for us to realize there is a 4:3 mole ratio of chromium(III) nitrate to lead(IV) nitrate, and therefore, we can calculate the moles of the former by applying the shown below stoichiometry setup:
[tex]0.85molPb(NO_3)_4*\frac{3molCr(NO_3)_3}{4molPb(NO_3)_4} \\\\0.64molCr(NO_3)_3[/tex]
Regards!
If 10.0 grams of sodium phosphate are reacted, what mass of barium nitrate is
required?
Answers
Answer: The mass of barium nitrate required is 23.91 g
Explanation:
The number of moles is defined as the ratio of the mass of a substance to its molar mass.
The equation used is:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex] ......(1)
Given mass of sodium phosphate = 10.0 g
Molar mass of sodium phosphate = 163.94 g/mol
Plugging values in equation 1:
[tex]\text{Moles of sodium phosphate}=\frac{10.0g}{163.94g/mol}=0.061 mol[/tex]
The chemical equation for the reaction of sodium phosphate and barium nitrate follows:
[tex]3Ba(NO_3)_2+2Na_3PO_4\rightarrow Ba_3(PO_4)_2+6NaNO_3[/tex]
By the stoichiometry of the reaction:
If 2 moles of sodium phosphate reacts with 3 moles of barium nitrate
So, 0.061 moles of sodium phosphate will react with = [tex]\frac{3}{2}\times 0.061=0.0915mol[/tex] of barium nitrate
Molar mass of barium nitrate = 261.337 g/mol
Plugging values in equation 1:
[tex]\text{Mass of barium nitrate}=(0.0915mol\times 261.337g/mol)=23.91g[/tex]
Hence, the mass of barium nitrate required is 23.91 g
The body system that transports molecules to and from all cells of the body
Answers
Answer:
El sistema cardiovascular tiene como función distribuir los nutrientes y el oxígeno a las células del cuerpo y recoger los desechos metabólicos para después eliminarlos en los riñones a través de la orina, y por el aire exhalado en los pulmones. El sistema cardiovascular comprende el corazón, que actúa como una bomba que mantiene el conjunto en funcionamiento, los vasos sanguíneos (arterias, venas y capilares), que son los conductos que transportan la sangre y, la sangre, que es el líquido fluido que contiene las células producidas por la maduración de las células madre de la médula
Explain the reason that the atomic emission spectrum of hydrogen contains only four lines.
A)
The hydrogen atoms form a continuous series of quantized energy levels
that transmute at a variety of frequencies.
B)
Hydrogen atoms contain a limited number of quantized energy levels that
emit radiation at a limited number of frequencies.
C)
Many hydrogen atoms accomodate an array of quantized energy levels that
can release energy at a progression of frequencies.
A hydrogen atom consists of a sequence of quantized energy levels that
incorporate radiation only from consecutive frequencies.
D)
Answers
Answer:
Though a hydrogen atom has only one electron, it contains a large number of shells, so when this single electron jumps from one shell to another, a photon is emitted, and the energy difference of the shells causes different wavelengths to be released... hence, mono-electronic hydrogen has many spectral lines.
Explanation:
thank me later
The reason that the atomic emission spectrum of hydrogen contains only four lines is the hydrogen atoms form a continuous series of quantized energy levels that transmute at a variety of frequencies.
What is atomic emission spectrum of hydrogen?The emission spectrum of hydrogen consist of numerous spectral series, the wavelength is postulated by Rydberg formula.
The reason behind the lines of spectrum is the transition of electron between two energies.
Thus, the correct option is A.
Learn more about atomic emission
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En un tanque se halla CO₂ a 285K ocupando un volumen de 8 L. En esas condiciones determinamos el volumen que ocupa a 393K, considerando que la presión se mantiene constante
Answers
Answer:
11.0 L
Explanation:
Podemos resolver este problema usando la ley de Charles, que afirma que a presión constante:
T₁V₂=T₂V₁Donde el subíndice 1 indica las condiciones iniciales y el 2 las finales. En este caso:
T₁ = 285 KV₂ = ?T₂ = 393 KV₁ = 8 LIntroducimos los datos:
285 K * V₂ = 393 K * 8 LY calculamos V₂:
V₂ = 11.0 Lpleassseeeee i’ll give brainiest!!!!!!!!
2KCIO3= 2KCI+3O2
Using the equation above, if 25.6 g of KClare produced, then how many grams of
KCIO3 were consumed? (Type the numerical answer only, no words or label. Use
correct significant figures)
Answers
Answer:
The key to chemistry is to change everything to moles. Then when you have the answer in moles change the answer back to grams, liters, or whatever you want.
change 25 grams of potassium chlorate to moles.
calculate the gram molecular mass of potassium chlorate.
Chlorate is Cl with 3 oxygens. ate = saturated. Chlorine has seven valance electrons when it is saturated six of these electrons are used by oxygen ( 2 electrons per oxygen) leaving only 1 electron.
1 K x 39 grams/mole
+1 Cl x 35.4 grams/ mole
+3 O x 16 grams/ mole
= 122.4 grams / mole Potassium Chlorate
25
122.4
= moles.
2.05 moles of Potassium Chlorate.
There is a 1:1 mole ratio. 1 mole of Potassium Chlorate will produce 1 mole of Potassium Chloride.
2.05 moles of Potassium Chlorate will produce 2.05 moles of Potassium Chloride.
Find the gram molecular mass of Potassium Chloride.
1 K x 39 = 39
+1 Cl x 35.4 = 35.4
= 74.4 grams / mole.
2.05 moles x 74.4 grams/ mole = 15.2 grams
Explanation:
hope this helped :)
A balloon that can hold 85 L of air is inflated with 7.056 grams of H2 gas at a pressure of 101.3 kPa. What is the temperature, in Celsius, of the balloon.
Answers
Temperature is 258.32°C
Explanation:Using the ideal gas equation;
PV = nRT --------------(i)
Where;
P = Pressure of the gas
V = Volume of the gas
n = number of moles of the gas
R = Gas constant = 8.31 J/mol · K
T = Temperature
Given:
mass of H₂ gas = 7.056 grams
Volume of the gas = 85L = 8.5 x 10⁻³m³
Pressure of the gas = 101.3kPa = 101.3 x 10³Pa = 1.013 x 10⁵Pa
Steps:
(i) Using the mass of the gas, calculate the number of moles using the relation:
n = m / M ----------------- (ii)
Where;
m = mass of H₂ = 7.056g
M = Molar mass of H₂ = 1g/mol
Substitute these values into equation (ii) as follows:
n = 7.056g / (1g/mol)
n = 7.056mol
(ii) Now calculate the temperature of the balloon by substituting the necessary values into equation (i)
(1.013 x 10⁵Pa)(8.5 x 10⁻³m³) = (7.056mol) (8.31 J/mol · K)(T)
T = (1.013 x 10⁵Pa)(8.5 x 10⁻³m³) ÷ (7.056mol) (8.31 J/mol · K)
Solving the above gives
T = 14.68K
Convert this to Celsius
T = 273 - 14.68
T = 258.32°C
4.) which organic compound has five carbon atom with at least one double bond?
O pentyne
O pentene
O pentane
O butene
Answers
Answer:
The answer is pentene.
Explanation:
The nomenclature for an organic compound with 5 carbon atoms will have a -pent prefix.
An organic compound with at least one double bond will have alkene suffix, which is -ene.
Thus, the nomenclature for an organic compound that has 5 carbon atoms with at least one double bond will be pentene.
How many moles are in 7.36 x 1025 molecules of H2O?
Answers
Answer:
There are 122.1982401 moles of H2O in [tex]7.36*10^{25}[/tex] molecules of H2O
Explanation:
We know,
[tex]6.023*10^{23}[/tex] molecules of H2O contains 1 mole H2O
1 molecules of H2O contains [tex]\frac{1}{6.023*10^{23}}[/tex] mole H2O
∴ [tex]7.36*10^{25}[/tex] molecules of H2O contains [tex]\frac{1}{6.023*10^{23}}*(7.36*10^{25})[/tex] moles of H2O
= 122.1982401 moles of H2O
∴ There are 122.1982401 moles of H2O in [tex]7.36*10^{25}[/tex] molecules of H2O
If 2.18 grams of Br2 react with excess KI, how many grams of KBr are formed? Br2 + 2 K1 - 12 +2 KB
Answers
Answer:
2.18 grams of Br2 reacts to produce 3.25 grams of KBr
Explanation:
The balanced equation is
2 KI + Br2 → 2 KBr + I2
2 moles of KI and 1 mole of Br2 reacts to produce two molecules of KBr
Mass of two moles of KI = 2 * 166 grams
Mass of one mole of Br2 = 159.808 grams
Mass of two moles of KBr = 2* 119 grams
Thus, 159.808 grams of Br2 reacts to produce 2* 119 grams of KBr
2.18 grams of Br2 reacts to produce {(2* 119)/ 159.808} * 2.18 grams of KBr
2.18 grams of Br2 reacts to produce 3.25 grams of KBr
The reaction of an acid and a base produce water and a
Answers
Answer:
The answer is " salt".
Explanation:
Hey there!
When any acids and base react with eachother, they forms water and respective salts.
For example:
HCl + NAOH = NACl + H2O.
Hope it helps!
How many Fluorine atoms are needed to accept the electrons of one Ca atom?
1
2
3
4
Answers
2 F atoms
Explanation:
A Ca atom has a valence number of +2, which means that when ionized, it will give up two electrons. In turn, a F atom has a valence number of -1, which means it can only accept 1 electron when ionized. So to accommodate the two electrons from Ca atom, we need 2 F atoms.
Help plz!
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Objects that are very dense, such as iron, can decrease their density by spreading their mass out over
A. a larger mass
B. a larger volume
C. a larger density
D. a larger object
Answers
Answer:
hi! I hope your having a awesome day
Explanation:
You are given a small beaker of solution at room temperature. You add a bit of solute to the solution and it dissolves. The original solution was
Answers
Answer:
Unsaturated
Explanation:
An unsaturated solution contains less solute than it can normally hold at a particular temperature.
This kind of solution can also dissolve more solute.
Hence, when a bit of solute is added to this solution, the solute dissolves indicating that the original solution was unsaturated.
Everything can dissolve in water because water is considered a universal solvent.
Liquid water is cooler than solid salt and sugar, allowing them to dissolve easily.
Salt's ions and sugar's polar bonds are both attracted to the polar water molecules.
Small solutes like salt and sugar can fit in the spaces between large water molecules.
What change would increase the amount of solid solute able to be dissolved in liquid water?
Decreasing rate of stirring
Decreasing surface area
Increasing pressure
Increasing temperature
Answers
Answer:
Increasing the temperature
Explanation:
The rate of solubility depends on a few factors. By increasing the temperature, the kinetic energy of the particles increase, leading to a higher rate of diffusion, dissolving the solid solute quicker.
HELP PLEASE
1. Locations where volcanoes form far from plate boundaries are called
A. islands
B. hot spots
C. divergent zones
Answers
In which radiation does the mass number decrease by 4 and proton number of the nuclei decrease to form a new element?
Answers
Answer:
Alpha
Alpha decay
When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4.
Im confused someone please help me
Answers
90 grams of NaNO3 were added to solution at 10 degrees Celsius. What type of solution was formed?
Answers
Answer:
friend me on here and imma send you the link Explanation:
The pressure of a certain amount of gas in a 1.25 L balloon is 760 torr. What would the pressure of that balloon be if it's volume was increased to 2.15 L?
Answers
440 torr
General Formulas and Concepts:Chemistry
Ideal Gas Law
Boyle's Law: P₁V₁ = P₂V₂
P₁ is pressureV₁ is volumeP₂ is new pressureV₂ is new volumeMath
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality Explanation:Step 1: Define
Identify
[Given] V₁ = 1.25 L
[Given] P₁ = 760 torr
[Given] V₂ = 2.15 L
[Solve] P₂
Step 2: Solve for P₂
Substitute in variables [Boyle's Law]: (760 torr)(1.25 L) = P₂(2.15 L)Multiply: 950 torr · L = P₂(2.15 L)[Division Property of Equality] Divide 2.15 L on both sides: 441.86 torr = P₂Rewrite: P₂ = 441.86 torrStep 3: Check
Follow sig fig rules and round. We are given 2 sig figs as our lowest.
441.86 torr ≈ 440 torr
Can someone please help me! I really need to do this so I can pass this class it’s the only assignment I haven’t done!!
Answers
Answer:
1. 868.8832g
2. .0053385mol
3.34.87 mol
4. 7049.088 g
Explanation:
I used the molar mass equation M= gram/mol and plugged in the numbers for each equation to figure out the missing part.
A 187.4g sample of C3H5(NO3)3 decomposes to produce carbon dioxide, water, diatomic oxygen, and diatomic nitrogen.
1) Write the balanced chemical equation for the decomposition reaction.
2) How many grams of carbon dioxide are produced?
3) How many grams of water are produced?
4) How many grams of diatomic oxygen are produced?
5) How many grams of diatomic nitrogen are produced?
6) The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction. Verify the law of conservation of mass for the decomposition of the 187.4 g of C3H5(NO3)3 .
Answers
Answer:
Answer:
Kc = 0.20
Explanation:
N₂O₄ ⇄ 2NO₂
moles 5.3mol 2.3mol
Vol 5L 5L
Molarity 5.3/5M 2.3/5M
= 1.06M = 0.46M
Kc = [NO₂]²/[N₂O₄] = (0.46)²/(1.06) = 0.1996 ≅ 0.20
Note:
All credit goes to drpelezo (Ace) who created and explained the answer.
Have a nice day, and I hope this helps
-kiniwih426