Answer: The final volume of the balloon is 335.6 L
Explanation:
To calculate the final volume of the balloon, we use the equation given by combined gas law:
[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]
where,
[tex]P_1[/tex] = Initial pressure = 1.2 atm
[tex]P_2[/tex] = Final pressure = [tex]3.00\times 10^{-3}[/tex] atm
[tex]V_1[/tex] = Initial volume = 1.00 L
[tex]V_2[/tex] = Final volume = ?
[tex]T_1[/tex] = Initial temperature = [tex]25^oC=[25+273]=298K[/tex]
[tex]T_2[/tex] = Final temperature = [tex]-23^oC=[-23+273]=250K[/tex]
Putting values in above equation, we get:
[tex]\frac{1.2atm\times 1.00L}{298K}=\frac{3.00\times 10^{-3}atm\times V_2}{250K}\\\\V_2=\frac{1.2\times 1.00\times 250}{298\times 3.00\times 10^{-3}}\\\\V_2=335.6L[/tex]
Hence, the final volume of the balloon is 335.6 L
What is the formula of iron(iii) oxide?
Answer:
Fe2O3
Explanation:
Answer:
Fe2O3
This is the chemical formula for iron(iii) oxide.
A reversible reaction is said to be in equilibrium when
A)
all reactions stop leaving some reactant unused.
B)
the reaction goes to completion and no reactants are left.
9)
the rate of the backward reaction equals the rate of the forward reaction.
D)
the reaction rate of the backward reaction becomes larger than the rate of
the forward reaction.
Answer: C) the rate backward reaction equals the rate of the forward reaction.
Explanation:
What is the different between stereotyping someone and judging them? paragraph in length please
Answer:
Stereotyping provides humans with the ability to quickly sort out patterns in a randomly diverse world filled with people of every size, shape, gender, age, color, and sexual orientation. And it’s just a quick first pass, nothing more
why a marble would be a good representaion of the inner core
Answer:
Marble forms when a pre-existing limestone rock is heated to such extreme temperatures that the minerals grow larger and fuse together. With this in mind, a hard marble rock would be the perfect example of the inner core of Earth since its packed, and full of high heat levels.
Explanation:
How would adding the catalyst nitrogen monoxide (NO) affect this reaction?
2SO2(g) + O2(g) → 2SO3(g)
A) NO increases the rate at which SO3 molecules are formed.
B) NO reacts with SO3 to produce more SO2 molecules.
C) NO decreases collisions between the SO2 and O2 molecules.
D) NO increases the concentration of the SO2 and O2 molecules.
E) NO increases the activation energy of the SO2 and O2 molecules.
Answer: A) NO increases the rate at which [tex]SO_3[/tex] molecules are formed.
Explanation:
A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more reactant molecules can cross the energy barrier by undergoing collisions and convert to products.
[tex]2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)[/tex]
Thus NO will increase the rate of reaction by lowering the activation energy and thus the colllisions among [tex]SO_2[/tex] and [tex]O_2[/tex] molecules will incraese which in turn will lead to formatioon of more [tex]SO_3[/tex] molecules.
Answer:
A) NO increases the rate at which molecules are formed.
Explanation:
PLATO
The period of daylight experienced each day on every part of Earth would be shorter if which one of the following changes occurred?
A Earth had a greater diameter.
B The mass of the Sun was greater.
C Earth rotated more quickly on its axis.
D The Sun was farther away from Earth.
Answer:
c
Explanation:
In a short paragraph, explain one thing you've learned from the course this year.
Answer:
ive learned about the chart , ive learned about the coolest chemicle reactions and how. the can change colors , ive also learned that chenistrey is all around us since the beginning of life ,and how liquid can turn solid
Explanation:
chnge color is a sign of chemical reaction
Which element is probably most like Carbon? and why
Explain, in your own words, what an electron configuration shows :
Someone please help will mark as brainliest
Answer:
4. A subscript is a sentence below a line. You cannot change subscripts in a chemical formula to balance a chemical equation
5. where's/whats the equation??
6. ^^^
Explanation:
if you drop soap on the floor is the soap dirty or is the floor clean?
Answer:
hahahaha the soappp is dirty and the floor gets clean
Based on the diagram shown, how many electrons does this atom have?
a.six
b.three
c.nine
d.one
Answer:
B. Three
Explanation:
The three dots that are surrounding the nucleus are electrons.
Explanation:
According to the diagram, the atom has 3 electrons.
Electronic configuration =
1s² 2s¹
Element = LithiumSymbol = LiPeriod = 2Group = 1 (Alkali metal) valency = 1Therefore,
Option B is correct✔
how does light emitted from a neon sign differ from sunlight?
Answer:
Neon emits only a specific color
Explanation:
While sunlight emits all the colors neon light emit a single color
What is an example of extensive property
Answer:
Mass & Volume
Explanation:
An Extensive Property is a property that depends on the amount of matter in a sample. Mass and volume are examples of extensive properties. Meanwhile, Color, Temperature, and Solubility are examples of Intensive Properties.
How many grams of calcium are in 2.65 g of CaCO3?
Answer:
2.56
Explanation:
Which two characteristics are associated with metals
Answer:
high electrical and thermal conductivity
Answer:
Metals donate electrons.
They are good conductors of heat and electricity.
Atoms and elements are examples of A. molecules. B. mixtures. C. compounds. D. pure substances.
Answer:
atom are very tiny partical
lonic bonds form between metals and
o metalloids O nonmetals o metalloids
What is depicted as the yellow arrows in the following image? (Using a scientific vocabulary word we learned in class and provide its definition) Which makes a bigger current- faster moving electrons or slower moving electrons?
Answer:
Electric Current
Explanation:
The yellow arrows in the following image depict electric current. Electric current is defined as the continuous flow of electrons in an electric circuit. Electrons present in the conducting material which move from one to another atom randomly from the negative terminal through the connecting wires and back to the positive terminal.
Faster moving electrons make a bigger current because faster moving electrons collide more with each other that generates more heat which results into a higher current.
Hence, The yellow arrows in the following image depict electric current and Faster moving electrons make a bigger current.
The yellow arrow in the diagram shows the flow of electrons.
Current is defined as the flow of electrons in a circuit. The yellow arrows represents the direction of the flow of electrons in the circuit. The battery provides the potential difference that drives the flow of electrons through the wire.
Since current has to do with the movement of electrons in a circuit, the faster the movement of the electrons, the bigger the current.
Learn more: https://brainly.com/question/8646601
Ok ok I know this isn’t about schoolwork but can ppl please comment how to ask a boy out?
Answer:
depends on the boy but don't try to hard be cool and just go for it 90 percent of the time they'll say yes
Explanation:
Explain why the mass of carbon must be decreasing in a different step of slow carbon cycle based on the increase in atmospheric CO2
Answer:
Carbon flows between the atmosphere, land, and ocean in a cycle that ... Coal and other fossil fuels are a convenient source of energy, but when ... If carbon dioxide rises in the atmosphere because of an increase in ... However, the slow carbon cycle also contains a slightly faster component: the ocean.
Explanation:
I got you fam
plzzz helppppppp!!!!!!!!!!!♥️♥️i only have 2 mins to complete this!!!!
Count the number of elements in the following molecule: 3 C2(H6K5)2
Answer:
3 elements
Explanation:
Carbon, helium, and potassium
Have you ever seen a building that looks as if it were made out of mirrors? These buildings are made using reflective glass. How would
replacing clear windows with reflective glass affect the temperature inside the building? Explain your ideas.
Answer:
the sun would reflect off of the windows causing less heat to travel into the building
Explanation:
DO ANY OF YALL KNOW THIS?????
1. Why do we need to use the mole to count atoms? (2pts)
2. What is the Molar mass of the following? Show your work
a. H2O2 (4pts)
b. C2H6 (4pts)
Answer:
1.mole allows us to weigh convenient amounts of material containing known numbers of atoms; i.e., it allows us to count atoms
2. H202 :34.0147 g/mol
C2H6: 30.07 g/mol
Y’all wanna help me? For Brainiest
Mass = 35g
Density = 5 g/cm3
∙What is the Volume?
Answer:
7cm3
.........
In a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele B is for a normal-sized body, and the alleles is for a dwarf body
Answer:
n a group of rats, some individuals have a normal-sized body and others have a dwarf body. In this group, the gene for the body size trait has two alleles. The allele for a normal-sized body (B) is dominant over the allele for a dwarf body (b).
Squeaky, a rat from this group, has a dwarf body.
Based on Squeaky's phenotype for the body size trait, which of the following could be Squeaky's genotype for the body size gene?
Explanation: can someone pls help?
How many molecules are in 1200 g of acrylonitrile (C3H3N), a chemical used in the production of plastic
Help
Answer: [tex]136.2\times 10^{23}[/tex] molecules
Explanation:
According to avogadro's law, 1 mole of every substance contains avogadro's number of particles.
To calculate the moles, we use the equation:
[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar Mass}}=\frac{1200g}{53.06g/mol}=22.62moles[/tex]
1 mole of acrylonitrile has = [tex]6.023\times 10^{23}[/tex] molecules
Thus 22.62 moles of acrylonitrile has = [tex]\frac{6.023\times 10^{23}}{1}\times 22.62=136.2\times 10^{23}[/tex] molecules
Taking into account the definition of Avogadro's number, 1.36×10²⁵ molecules of C₃H₃N are in 1200 g.
Avogadro's NumberAvogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.
Mass molarThe molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.
The molar mass of a compound (also called Mass or Molecular Weight) is the sum of the molar mass of the elements that form it (whose value is found in the periodic table) multiplied by the number of times they appear in the compound.
This caseIn this case, you know the molar mass of the elements is:
C= 12 g/moleN= 14 g/moleH= 1 g/moleSo, the molar mass of the compound C₃H₃N is calculated as:
C₃H₃N= 3× 12 g/mole + 3× 1 g/mole + 14 g/mole
Solving:
C₃H₃N= 53 g/mole
You have 1200 g of C₃H₃N. So, knowing its molar mass, you can calculate the number of moles that contain a mass of 1200 g as:
1200 g×[tex]\frac{1 mole}{53 grams} [/tex]= 22.64 moles
Then you can apply the following rule of three: If by definition of Avogadro's number 1 mole of C₃H₃N contains 6.023×10²³ molecules, 22.64 moles of C₃H₃N contains how many molecules?
amount of molecules of C₃H₃N= (22.64 moles × 6.023×10²³ molecules)÷ 1 mole
amount of molecules of C₃H₃N= 1.36×10²⁵ molecules
Finally, 1.36×10²⁵ molecules of C₃H₃N are in 1200 g.
Learn more about
Avogadro's Number:brainly.com/question/11907018?referrer=searchResultsbrainly.com/question/1445383?referrer=searchResultsbrainly.com/question/1528951?referrer=searchResultsMolar mass:brainly.com/question/12695086?referrer=searchResultsWhen a candle burns, the reaction produces:
• oxygen and water
• carbon dioxide and wax
• wax and oxygen
• carbon dioxide and water vapor
Answer:
B
Explanation:
Hope this helps you
