Answer:
B)10.0 dm3
Explanation:
Now we have to apply Gay-Lussac's law which states that gases combine in simple volumes provided the temperature and pressure remain constant.
2NO(g) + O2(g) ------>2NO
combining volumes 2 : 1 : 2
Volumes before reaction 8.0 6.0 0.0
Reacting volumes 8.0 4.0 8.0
Volumes after reaction - 2.0 8.0
Therefore;
Total volume after reaction = 2.0 + 8.0 = 10.0 dm^3
The volume of the mixture after the reaction is 10 dm³
The correct answer to the question is Option B. 10 dm³
The above is simply a demonstration of Gay-Lussac' law. The volume of the mixture after the reaction can be obtained as follow:
2NO(g) + O₂ —> 2NO(g)
Combining Vol: 2 dm³ : 1 dm³ : 2 dm³
Before reaction: 8 dm³ : 6 dm³ : 0
During reaction: 8 dm³ : 4 dm³ : 8 dm³
After reaction: 0 dm³ : 2 dm³ : 8 dm³
The Volume after the reaction = 2 + 8 = 10 dm³
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what information do the coefficients of a balanced equation give about the reactants
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Hahaha hey! What’s up!
true or false? no atoms are gained or lost in a chemical reaction
Answer: this is true
The two main postulates that was given by Antoine Lavoisier are, oxygen play an important role in combustion and the other is mass of the reactant and product is conserved. Therefore, the given statement is true.
What is law of conservation of mass?
According to Law of conservation of mass, mass can neither be created nor be destroyed. Mass can only be transformed from one form to another. The law of conservation of mass was given by Antoine Lavoisier. Every reaction in nature follow the law given by Antoine Lavoisier that is mass is always conserved.
According to this law, the number and types of atoms on reactant and product side is same. The statement " no atoms are gained or lost in a chemical reaction" is very much correct.
Therefore, the given statement is true.
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Plz help!
What must change in order to change the amount of power?
Answer:
Mass
Explanation:
Define symbol ..........
Answer:
Hey mate here's your answer ⤵️
a mark or character used as a conventional representation of an object, function, or process, e.g. the letter or letters standing for a chemical element or a character in musical notation.
Hope it was helpfulllnoun: letter, character, sign of written communication
Something used for or regarded as representing something else; a material object representing something,
or a character of some kind
Example:
Often something immaterial; emblem, token, or sign: "$"<< the dollar sign is a symbol used to show / means money
Hope this kinda helped
Which of the following groups of elements has two valence electrons and is highly reactive?
Select one:
a. Alkali metals
b. Alkaline-earth metals
c. Halogens
d. Noble gases
As the radius of a star increases, how do you think its luminosity might change?
Answer:
As the size of a star increases, luminosity increases. If you think about it, a larger star has more surface area. That increased surface area allows more light and energy to be given off.
explain what happens during the chemical reaction
CaCO3 -> CaO + CO2
check out this article i found it very helpful,
I couldn't find the answer to your question.
For the elements in the "f-block," how is the row number related to the principal energy level for the last orbital notation of their electron configurations?"
Answer:
See explanation
Explanation:
Given that the row number is the same as the period or energy level(shell) in which the electron is found.
If we designate this row number as "n", we know that the highest principal energy level for the f orbitals is obtained as (n-2) f.
Thus, we obtain the highest principal energy levels for the "f block" elements by subtracting 2 from the row number.
How many atoms of aluminum (Al) are in 3.94 mol of aluminum
Answer:
26.9
Explanation:
that is my answer I try to it
Iron is more reactive than copper. Write an activity to show this. Write word equation of the reaction involved.
Answer:
This can be proved by the following activity: Take some Iron fillings and dip them in the Copper sulphate solution. After some time you will notice that there is a colour change in the solution which is caused due to the displacement of Copper from it solution.
Explanation:
35.46 g silver nitrate reacts with 52.61 g sodium chloride to produce silver chloride and sodium nitrate.
How much silver chloride solid will be produced?
Here are the steps hope it helps
Giving brainliest !!!
Answer:
a and i thinkc
Explanation:
When are kids ready to assume adult responsibilities?
Answer:
18 years old or when they become mature.
Explanation:
What is the relationship between the circulatory and respiratory systems?
A. They work together to store the waste that blood collects from the body.
B. The circulatory system provides oxygen that the respiratory system uses to fill the lungs
C. The respiratory system provides blood that the circulatory system uses to transport nutrients.
D. They work together to supply oxygen to tissues and rid the body of carbon dioxide
Answer:
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart
Explanation:
This should help you out
how dose the scientist know the substances goes through a change of state during the time period labeled B on the graph?
Answer:
The temperature remains constant
Explanation:
In a plot of temperature against time, it is easy to spot the points on the graph where a change of state is taking place.
During a change of state, the temperature does not not change with time. These are points that are plateaus on the temperature-time graph.
This is because, during phase change, the heat that is added is used in breaking intermolecular forces therefore a temperature change is not observed until the phase change is complete.
which description shows copper at rtp?
Answer:
It is malleable, ductile, and an extremely good conductor of both heat and electricity. It is softer than zinc and can be polished to a bright finish. It is found in group Ib of the periodic table, together with silver and gold. Copper has low chemical reactivity.
Which of these equations is balanced?
1. 4Sb + 3O2 → Sb4O6
2. H3 AsO4 → As2O5 + H2O
3. SiO2 + HF → SiF4 + H2O
4. CO2 + NH3 → CO(NH2)2 + H2O
Answer:
the first is the answer
write down the cell equation. please
Answer:
see explanation
Explanation:
symbiology is (oxidation rxn || reduction rxn)
=> Zn°|Zn⁺² || Cu⁺²|Cu° => Zn°(s) + Cu⁺²(aq) => Zn⁺²(aq) + Cu°(s)
Long form EC for Aluminum
Which of the following elements can form a covalent (molecular) bond with nitrogen?
A. Oxygen
B. Magnesium
C. Sodium
D. Neon
Oxygen can form a covalent (molecular) bond with nitrogen. Hence, option A is correct.
What is a covalent bond?A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms.
Two covalent bonds form between the two oxygen atoms because oxygen requires two shared electrons to fill its outermost shell.
Nitrogen atoms will form three covalent bonds (also called triple covalent) between two atoms of nitrogen because each nitrogen atom needs three electrons to fill its outermost shell.
Hence, option A is correct.
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which line represents the gas state?
Answer: F : Gas
Explanation:
what are the materials needed during photosynthesis?
Which element’s atoms have the greatest average number of neutrons?
Answer:
53
Explanation:
the atomic number is 53, then Number of neutrons=127-53=74 Since, the number of neutrons are large in Tellurium, therefore Tellurium have the greatest average number of neutrons.
What voltage will produce 3 A through a circuit that has 15
ohms of resistance?
Answer:
5 ohms of resistance
Explanation:
15/3=5
URGENT !! PLEASE ANSWER !!
Is C-O a nonpolar or polar covalent bond? why?
Why are prefixes not needed in naming ionic compounds?
Answer:
its A
Explanation:
Answer:
C. Ions combine in only one ratio
Explanation:
Just took the quiz
explain why the weight of an object changes if taken to the moon but not its mass
Answer:
Because the gravitational force alters
Explanation:
Look at position 2 on the roller coaster
Is there more potential or kinetic energy , why ?
The chlorophyll processes the ingredients to make
(plant food) and
The chlorophyll processes the ingredients to make
(plant food) and
Answer:
oxygen
Explanation: