The average reaction rate for oxygen gas is 49.26 mL/s
The average reaction rate of a substance refers to the speed at which a reaction occurs and therefore products are formed. In the reaction presented, oxygen gas is the product.
Moreover, the average reaction rate can be expressed in mL per second or mL/s, and the formula to calculate it is:
Product in mL/seconds
Let's calculate the reaction rate:
100 mL/ 2.03 s = 49.26 mL/sLearn more about oxygen in: https://brainly.com/question/1506082
1. a Use the valence electron molecular orbital diagram for F2 to propose ground state F2ions that satisfy the following conditions
(1.5 points) (i) A F2 ion that is paramagnetic and that has a non-integer bond order.
(1.5 points) (ii) A F2 ion that is paramagnetic and that has an integer bond order.
(1.5 points) (iii) A F2 ion that is diamagnetic and that has a bond order of 3.
Clearly show the charge on your ion, label all valence molecular orbitals, and show the corresponding electrons in their orbitals. Full calculations for bond orders must be included.
b) Using only the valence electron molecular orbital diagram for F2, is a ground state diamagnetic ion with a bond order of 2 possible? Write one or two sentences to explain why or why not.
A substance has a molar heat of combustion of -810.4 kj/mol. when 0.285 mol of the substance is burned in a calorimeter containing 8.60 kg of water, the increase in water temperature is:
Answer:
6.42 °C
Explanation:
Q = mcΔT
Q = energy gain/release (J)
m = mass (kg)
c = specific heat capacity (J/°C/kg)
ΔT = change in temperature (°C)
Qs = n(ΔH°c)
Qs = energy gained/released from substance (kJ)
n = moles (mol)
ΔH°c = molar heat of combustion (kJ/mol)
m = 8.60
n = 0.285
ΔH°c = -810.4
c (of water) = 4184
Qs = 0.285(-810.4)
Qs = -230.964 (or -230964 J)
Q = 230964
230964 = (8.60)(4184)ΔT
230964 = 35982.4(ΔT)
ΔT = 6.4188... °C → 6.42 °C
AgNO3 is a useful chemical that has many applications and can undergo a variety of reactions. In the following examples, balance each equation if necessary and then identify what type of reaction it represents. i. AgNO3 + Cu —>Cu(NO3)2 + Ag ii. AgNO3 —> Ag +O2 + NO2 iii. AgNO3 + KCI —> AgCI + KNO3 iv. Ag+ +I- +Agl
The balance chemical equation and the type of reaction of AgNO₃ and the other compounds can be represented as follows;
2AgNO₃ + Cu → Cu(NO₃)₂ + 2Ag (single displacement )
2AgNO₃ → 2Ag + O₂ + 2NO₂ (decomposition reaction)
AgNO₃ + KCI → AgCI + KNO₃(double displacement reaction)
2Ag + I₂ → 2AgI (synthesis reaction)
AgNO₃ + Cu → Cu(NO₃)₂+ Ag
The balance equation is as follows:
2AgNO₃ + Cu → Cu(NO₃)₂ + 2AgThis is a single displacement (substitution) reaction. The Copper substance displaced silver from it compound.
AgNO₃ → Ag + O₂ + NO₂
The balance equation is represented as follows:
2AgNO₃ → 2Ag + O₂ + 2NO₂The reaction is a decomposition reaction. Silver nitrate was decompose to it individual constituent.
AgNO₃ + KCI → AgCI + KNO₃
The balance equation is represented as follows:
AgNO₃ + KCI → AgCI + KNO₃The reaction is a double displacement reaction. The anions and cations of two different compound switch places, forming two entirely different compounds.
Ag + I₂ → AgI
The balance equation is as follows:
2Ag + I₂ → 2AgIThe reaction is a synthesis reaction. The individual elements combined to form a compound.
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In a Lewis Diagram for fluorine, are the two electrons given to the other fluorine atom, taken by the other fluorine atom, or shared between the fluorine atoms?
Many fundamental concepts are at the heart of chemistry. Match the description to the name.
Answer:
you dony have a picture for me to match them
Explanation:
Explain in your own words:
i. Sublimation
ii. Condensation
iii. Melting
Which condition is usually associated with low air pressure systems?
Answer:
clouds and precipitation that minimize temperature changes throughout the day
Explanation:
how many seconds are there in 15 hours show work
Answer:
54,000 seconds
Explanation:
seconds in 1 hr = 3600
secs in 15 hrs = 3600×15
→ 54000
Predict the decay process and write the nuclear equation of Cf- 255
Answer:
curium
−
243
,
252
/
99
Es,
251
/
98
Cf,
214
/
82
Pb
Explanation: Im not very good with this but here ya go!
If 0.45 mole oxygen gas occupies a volume of 1.5 L, what volumes will 2.0 moles of oxygen gas occupy at the same temperature and pressure?
please don't send YouT8ube link i need a solution
Answer:
1. How many moles of oxygen will occupy a volume of 2.5 liters at 1.2 atm and 25° C? PV = V (1.2 n. 0821) (298) = 123 mols 2.
2.0 moles of oxygen gas will occupy a volume of 6.67 L at the same temperature and pressure.
Moles is a unit of measurement used in chemistry to express the amount of a substance. It is a counting unit that represents the number of particles, such as atoms, molecules, or ions, in a given sample.
One mole of a substance is defined as the amount of that substance that contains Avogadro's number of particles, which is approximately 6.022 x 10²³. This number is based on the concept that atoms, molecules, and ions are extremely small and difficult to count individually, so using moles allows for a more practical and convenient representation of quantities.
Given:
Moles of oxygen gas (initial) = 0.45 mol
Volume of oxygen gas (initial) = 1.5 L
Moles of oxygen gas (final) = 2.0 mol
Volume of oxygen gas (final) = ?
Using the principle of molar volume, we can set up the following ratio:
(0.45 mol / 1.5 L) = (2.0 mol / V)
V = (1.5 L × 2.0 mol) / 0.45 mol
V = 6.67 L
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Chose any ONE state of matter and explain the space of the particles.
Use a drawing to help explain.
Answer:
solid
intermolecular space is very closed to each other and tightly packed
How many moles are contained in 127 grams of lead?
Answer:
18.015
Explanation:
If 3.5 mols of P2O3 are formed, how many
moles of P4 reacted?
P2 is 3.5 for p4= 2p2 i.e 2*3.5=7
Answer;561gp203 are required to
produce 10.2 mol H3p03
1. Newton's First Law is also called the
Law of
Answer: law of inertia
Explanation:
Answer:
The Law of Inertia
Explanation:
Another name for Newton's first law is The Law of Intertia, which states that "if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force" (“Newton’s laws of motion | Definition, Examples, & History | Britannica, n.d.).
convert 3.79 x 10^24 atoms of sodium to grams
mol = 3.79 × 10^24/6.02 × 10^23 = 6.296 mol
mass = 6.296 × 23 = 144.808 grams
What is the wavelength, in nanometers, of light with a frequency of 1.97x10^15 Hz?
a) 1.52 nm
b) 1.52x10^-7 nm
c) 152 nm
d) 15.2 nm
Why do thermistors increase in conductivity when heated? What happens in normal metals? Explain on the atomic level.
Metal conductivity generally goes down or resistivity goes up with temperature goes up.
Which type of monomer combines and forms polypeptides?
A. Nucleic acid
B. Amino acid
C. Fatty acid
D. Monosaccharide
Which of the following is a completely elastic collision? A. a ball rebounds against a wall, reversing its direction, but at only half the speed. B. Two balls collide, stick to each other, and move together after the collision. C. Two balls collide and move at a right angle to each other after the collision at a reduced speed. D. Two balls collide head on, each reversing its direction and traveling at half the speed. E. A ball with velocity v collides with a ball at rest; after the collision the first ball is at rest and the second ball has velocity v. I will mark brainliest
Answer:
Answer E.
For a collision to be completely elastic, there must be NO LOSS in kinetic energy.
We can go through each answer choice:
A. Since the ball rebounds at half the initial speed, there is a loss in kinetic energy. This is NOT an elastic collision.
B. A collision involving sticking is an example of a perfectly INELASTIC collision. This is NOT an elastic collision.
C. A reduced speed indicates that there is a loss of kinetic energy. This is NOT elastic.
D. The balls traveling at half the speed after the collision indicates a loss of kinetic energy, making this collision NOT elastic.
E. This collision indicates an exchange of velocities, characteristic of an elastic collision. We can prove this:
Let:
m = mass of each ball
v = velocity
We have the initial kinetic energy as:
KE = \frac{1}{2}mv^2 + 0 = \frac{1}{2}mv^2KE=21mv2+0=21mv2
And the final as:
KE = 0 + \frac{1}{2}mv^2 = \frac{1}{2}mv^2KE=0+21mv2=21mv2
Answer:
E
Explanation:
hope this helps
what is the continent bellow the world?
Answer:
antarcita
Explanation:
Answer:
What is the continent bellow the world?
Antarctica is the continent below the Earth.8. Which property is used to determine the degree of polarity between two bonded atoms? A) density B) electronegativity C) pressure D) temperature
Answer:
I think B) electronegativity is the correct answer.
Electronegativity is the property which is used to determine the degree of polarity between two bonded atoms. Therefore, the correct option is option B.
What is polarity?Polarity is the dispersion of electrical charge over the atoms linked by a chemical bond. Bonds between identical atoms, such as H2, are electrically homogeneous in the sense that both hydrogen atoms are electrically neutral, but bonds between different atoms are electrically inequivalent.
Electronegativity is the property which is used to determine the degree of polarity between two bonded atoms. The relative electronegativities of the elements determine the polarity of a bond. Electronegativity is the ability of an element's atom to attract electrons to itself when it is part of a compound.
Therefore, the correct option is option B.
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Of the following, ________ is the most volatile. Select one: C2F6 C2H6 C2I6 C2Cl6 C2Br6
Answer:
C2Br6
because bromine is a liquid volatile
According to the forces of attraction and boiling point C₂Br₆ is most volatile as its boiling point is very low.
What are forces of attraction?Forces of attraction is a force by which atoms in a molecule combine. it is basically an attractive force in nature. It can act between an ion and an atom as well.It varies for different states of matter that is solids, liquids and gases.
The forces of attraction are maximum in solids as the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.
The physical properties such as melting point, boiling point, density are all dependent on forces of attraction which exists in the substances.
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What is important about the properties of a substance that has undergone a chemical
change?
The substances created during chemical reactions, on the other hand, do not simply revert to their initial state. The most essential thing to remember is that the makeup of a material does not change when it undergoes a physical change, but it does change when it undergoes a chemical change.
Answer:
the most important thing for you to remember is that in a physical change composition of a substance does not change and in a chemical change the composition of a substance does change
how many molecules are in 2.50 moles of co2
Answer:
[tex]1.51 \times 1024 \: \: molecules[/tex]
Explanation:
There are 1.51 x 1024 molecules of carbon dioxide in 2.50 moles of carbon dioxide.
Which of the following ideas did Greek philosopher Democritus contribute to the atomic theory?
A. Matter is composed of only one kind of particle, which can be easily destroyed.
B. Every element has a specific type of atom, which remains the same size in all forms of matter.
C. All matter is composed of small particles, which combine to make larger objects.
D. Each object is made up of one atom, which varies in size from very small to very large.
I will mark the correct answer the brainliest
Answer:
c. all matter is composed of small particles,which combine to make larger objects
17) An ethanol solution has a concentration of 0.500M. What volume in liters of this solution
would contain 8.0 moles of ethanol?
To calculate the Molar Concentration, we will find the molar concentration by dividing the moles by liters of water used in the solution. For example, the acetic acid here is completely dissolved in 1.25 L of water. Then divide 0.1665 moles by 1.25 L to get the molar concentration, which will be 0.1332 M.
Hope It Helpz(◕ᴥ◕)Hydrogen gas reacts with oxygen gas to form water. What is the excess reactant in this recation(Refer to the picture below to answer).
A. Water
B. Hydrogen gas
C. Oxygen gas
D. Water and oxygen gas
Answer: C. Oxygen Gas
Explanation: When Hydrogen Gas and Oxygen Gas combine together it forms water correct. When you have an excess amount of another it stays neutral because it has no other molecule to react with.
The frequency light of 3.52*10-7
Answer:
The speed of light, c, equals the wavelength, λ (pronounced lambda), times the frequency, ν, (pronounced noo).
c=λν
c is a constant. It is usually given as 3.00×108 m/s or 3.00×1010 cm/s rounded to three significant figures.❤
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Answer:
wut??
Explanation:
What is the molarity of the nitric acid solution if 20.5 mL of a 0.125 M lithium hydroxide solution are needed to titrate a 25.0 mL sample of the nitric acid solution
Answer:: We're asked to find the molar concentration of the NaCl solution given some titration data.
Explanation:
