The correct empirical formula for the given ratio of 1:1:3 is FeS3. To determine the empirical formula, we need to find the simplest whole number ratio of atoms present in the compound.
Let's analyze the options:
- OCC13O: This formula does not have the correct ratio of 1:1:3.
- CFC13O: This formula does not have the correct ratio of 1:1:3.
- FeS3: This formula has the correct ratio of 1:1:3 between iron (Fe) and sulfur (S).
- OK3CO3: This formula does not have the correct ratio of 1:1:3.
From the analysis, we can conclude that the correct empirical formula with a ratio of 1:1:3 is FeS3.
The empirical formula FeS3 indicates that there is one atom of iron (Fe) and three atoms of sulfur (S) in the compound. This ratio satisfies the given condition of a 1:1:3 ratio. The empirical formula represents the simplest whole number ratio of atoms in a compound and does not provide information about the actual number of atoms present in the molecule.
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calculate the number of atoms in 52g of He.
Answer:
Number of atoms in 52g of He is 7.829X10^24.
Explanation:
Solution,
Given,
No of mole of atoms (NA) = 6.023x10^24.
Mass ogiven helium=52g
Atomic mass of helium=4
Lets do sep by step,
1) No. of atom in 52g of He.
= NAxmass/At.mass
= 6.023X10^23x52/4
= 7.829 x 10^24.
An lonic compound contains a single metal cation and a single non-metal atom. What's the structure of this molecule? Is this molecule polar or non-polar?
A. Trigonal planar, polar
B. Linear, non-polar
C. Trigonal planar, non-polar
D. Linear, polar
What kind of change is burning paper
Answer:
Burning paper is a chemical change where paper burns to form ash and also CO2
Answer:
Burning paper is a chemical change
Explanation:
As when a paper is burnt its physical properties and structure completely changes . And it converts into an ashes.
Some trees have purple leaves. The purple colour is a mixture of coloured pigments.
Plan an experiment to extract and separate the coloured pigments present in the purple leaves.
You are provided with some purple leaves, sand, ethanol and common laboratory apparatus.
Answer:
blue and red
Explanation:
edmmdldl c0lor w
Ms. Clark added a spoonful of baking soda and then poured a little vinegar into the cup. We observed fizzing and bubbling. Based on what we saw or observed, we decided that a new substance was formed by mixing the baking soda and vinegar. How do we know that? O A gas formed. o It was magnetic. It was a conductor. o It was hot. 0 It changed colors to pink.
Answer:
we know that it was the vinegar and baking soda because gas had been created, the gas was held within the bubbles. the gas that was created was called Carbon Dioxide or CO2
A certain chemical reaction releases 850 J of
energy. Convert this quantity to calories.
Help me plz.
Answer:
203.155 calories
Explanation:
Given that,
Energy released by a certain chemical reaction is 850 J.
We need to convert the energy into calories.
We must know the relationship between Joules and Calories.
1 calorie = 4.184 Joules
1 Joule = 0.239006 calorie
Now,
850 Joule = 203.155 calories
So, 850 J of energy is equivalent to 203.155 calories.
Which sentence best explains the observed trend in atomic radius as you
move down the periodic table?
O A. The more core electrons an atom has, the smaller the atomic
radius.
OB. The more energy levels that are occupied by electrons, the larger
the atomic radius.
C. The more paired electrons there are, the smaller the atomic radius.
O D. The more neutrons a nucleus has, the larger the atomic radius.
Answer:
B
Explanation:
The more energy levels that are occupied by electrons, the larger
the atomic radius.
The more energy levels that are occupied by electrons, the larger
the atomic radius. Hence, option B is correct.
What is the atomic radius?The atomic radius is calculated by measuring the distance between the nuclei of two identical atoms bonded together.
In general, the atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remain constant.
Hence, the observed trend in atomic radius as you move down is that the more energy levels that are occupied by electrons, the larger
the atomic radius.
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HELPPPP If you observe a blue light emitted during the flame test, what would the wavelength of the light be?
When does carbon dioxide absorb the most heat energy
Answer:
Carbon dioxide absorbs the most heat energy during SUBLIMATION
Explanation:
Carbon dioxide absorbs the most heat energy during SUBLIMATION
How many valence electrons are in a highly reactive metal that is explosive with
water?
A).7
B).2
C).1
D).5
What is the product of NO2+NaOH ?
Explanation:
i hope i have been useful buddy.
good luck ♥️♥️.
What is the density of a sample of a substance with a volume of 120ml
and a mass of 90g?
Answer:
The answer is 0.75 g/mLExplanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question
mass = 90 g
volume = 120 mL
We have
[tex]density = \frac{90}{120} = \frac{9}{12} = \frac{3}{4} \\ [/tex]
We have the final answer as
0.75 g/mLHope this helps you
how many inches are in 20.12 cm
Answer:
About 7.9 inch
Explanation:
Gases can be defined by the following statement:
Gases freely flow to fill the container they are in.
Gases have neither a defined volume nor shape.
Gases are highly compressible.
All of the above
Gases can be defined by the statement, gases freely flow to fill the container they are in, gases have neither a defined volume nor shape and gases are highly compressible.
What is gas?Even in the existence of gravity as well as irrespective of the mass of a substance in the vessel, gas is just a sample of matter which make up the structure of the container where it is contained and achieves an uniform distribution within the container.
What is volume?The term "mass" refers to the amount of material used to construct anything. The volume of a thing refers to the amount of space it occupies.
Gases can be defined by the statement, gases freely flow to fill the container they are in, gases have neither a defined volume nor shape and gases are highly compressible.
Therefore, the correct answer will be option (D).
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Identify the number of elements and the number of atoms present in the chemical formula.
What always happens during a chemical change?
Answer:
In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change
How many particles are in 0.15 moles of Francium ?
Didymo threatens the North Georgia trout populations. What is the best way Georgians can help prevent the spread of didymo?
Answer: Avoid wading in Georgian waters to catch trout and don't move from one body of water to the next without changing and sanitizing waders.
Explanation:
explain why the two argon atoms are attracted
to each other.
The smallest unit of a compound in which two or more atoms are joined chemically together
Molecule.
A. Energy
B. Organism
C. Chemical reaction
D. Matter
E. Cellular respiration
how many atoms are in FeS₂?
Surface model,we used a supercell of
16.1106×16.1106×18.0 And a model of a 3 × 3
9 atoms..
if this answer helps you plz mark as brainlist..But, don't report my answer..Would sodium bond with potassium (atomic number 19)? Why or why not?
Answer:
NoExplanation:
Sodium ;
Atomic number = 11
Group = Group 1
Valence electrons ; 1
Charge = electropositive elements
Potassium ;
Atomic number ; 19
Group = Group 1
Valence electrons ; 1
Charge = electropositive elements
Reason why Sodium and Potassium can not form a bond ;
They both belong to the same group in the periodic table (Group I).They both contain one electron in their outermost shell(they need to lose it)So, a chemical reaction between both these elements is not going to establish octant sate for either of the element.
Steven and Joey are sent to the main office to pick up materials fo science class. Steven picks up a box that contains 40.0g of styrofoam. Joey picks up a box that contains 40.0g of marbles. On the way back to class, the boys begin to argue over whose bo is heavier. Steven thinks he has the heavier box. Joey thinks his box is definitely heavier than Steven's. 1. Which boy is correct? EXPLAIN!!!!
Answer:
I NEED HELP PLZZZZZZZZZZZZZ
Explanation:
Answer: Their both 40.0g, they're the same weight bot boys are wrong
Explanation:
what happens Cotton socks are rubbed against a wool carpet
Answer:
Static electricity
Explanation:
Because the friction is creating heat and static.
Answer:
it generates static:)
Convert 67.2 L CO at STP to moles
To Find :
The STP moles of 67.2 L CO.
Solution :
We know, molar volume at STP is used to converted into moles by :
1 moles = 22.4 L STP
So, number of moles in 67.2 L CO is :
[tex]n=\dfrac{67.2}{22.4}\\\\n = 3 \ moles[/tex]
Therefore, number of STP moles are 3.
Hence, this is the required solution.
Which of the following is the biggest ionic radius? Na+ or Na?
Answer:
Na
Explanation:
LOTS OF POINTS FOR WHOEVER ANSWERS THIS
Place the elements Lithium (Li), Beryllium (Be), and Potassium (K) in order from lowest electronegativity energy to the highest. Explain with details and use the Coulomb's Law to back up your statement
You should probably rephrase this:
According to Coulomb's Law, as the number of protons in an atom increases (or atomic number), the nuclear energy of atoms will increase, pulling electrons closer.
I think the order would be Be, Li, K but feel free to check online before you submit any work with this.
HI PLEASE HALP MEH
Habitat preservation is usually the most efficient method of protecting biodiversity because it involves protecting an entire ____.
A: Organism
B; population
C: ecosystem
D: species
Habitat preservation is usually the most efficient method of protecting biodiversity because it involves protecting an entire ecosystem.
What are natural habitats?The natural world provides a variety of resources that can be taken advantage of for financial gain, such as timber taken from forests and clean water taken from streams and hence the entire ecosystems preservation.
However, anthropogenic economic growth-related land expansion frequently results in a decrease in the ecological integrity of neighboring natural habitat.
A management strategy known as habitat conservation aims to preserve, maintain, and restore habitats in order to stop the extinction, fragmentation, or range reduction of species. It is a focus of numerous groups that is difficult to categorize in terms of a single ideology.
For instance in tropical regions with a high species richness or in leisure activities like hiking and mountain biking that take place in undeveloped areas. Repairing harmed ecosystems is thought to be substantially more valued.
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Write an essay (10 lines) about "What is Energy?" How many types of Energy do you know? and which are the types of Energy most used in the world?
Use the periodic table to predict which element has the most metallic character.
A) silicon
B) sodium
C) sulfur
D) thallium
Answer: A silicon
Explanation:
