Hi! I am struggling with this problem and if anybody can correctly answer this problem I would gladly appreciate it, thanks!

Answer: [tex]\text{N}_{5}\text{O}_{10}[/tex]

Explanation:

This means the molecular mass of nitrogen dioxide is [tex]14.0067+2(15.9994)=46.0055[/tex] g/mol.

Dividing this molecular mass of the compound we need to find, we get that

[tex]\frac{230.05}{46.0055} \approx 5[/tex].

So, the final answer is [tex]\boxed{\text{N}_{5}\text{O}_{10}}[/tex]

Answer:

the number of collisions is independent of Volume.

Based on Charles's law,  an ideal gas at a constant pressure and mole amount is " the number of collisions is independent of volume."

Gases have a propensity to expand while heated, according to Charles' law, an innovative gas law.

A collision would be any situation in where two or even more bodies quickly number of factors on one another.

Based on Charles's law,  an ideal gas at a constant pressure and mole amount is " the number of collisions is independent of volume."

Therefore, the correct answer will be option (A).

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Answer:

Tortillas generally last for a week after their "best by" date on the counter and about a month if placed in the fridge. But it sometimes depends on how they are stored

Explanation:

Hope this helped

Answer:Methane(CH4) and dioxygen(O2) are the reactants

Carbon dioxide(CO2) and water(H2O) are the products

Explanation:

Ester is characterized by a central carbon atom that is double-bonded to an oxygen atom, single-bonded to R, and single-boned to R prime.

It is an organic functional group composed of the following:

Thus, the structure of an ester looks like the attached image.

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Answer:

B

Explanation:

One of the industrial method for the production of hydrogen is the steam reforming process while oxygen is air separation.

One of the industrial method for the production of hydrogen is the steam reforming process also known catalytic steam–hydrocarbon process.

In  catalytic steam–hydrocarbon process, gaseous or vaporized hydrocarbons are treated with steam at high pressure over a nickel catalyst at 650°–950° C to produce carbon oxides and hydrogen.

One of the industrial method of oxygen production is the separation of air using either a cryogenic distillation process or a vacuum swing adsorption process.

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The age of the ancient piece of wood that she located given the data is 1482 years

How to determine the number of half-lives

Original amount (N₀) = 100%

Amount remaining (N) = 83%

Number of half-lives (n) =?

2ⁿ = N₀ / N

2ⁿ = 100 / 83

2ⁿ = 1.2

Take the Log of both side

Log 2ⁿ = Log 1.2

nLog 2 = Log 1.2

Divide both side by Log 2

n = Log 1.2 / Log 2

n = 0.26

How to determine the age

Number of half-lives (n) = 0.26

Half-life (t½) = 5700 years

Time (t) =?

t = n × t½

t = 0.26 × 5700

t = 1482 years

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1 mol of every gas weighs 22.4L at STP

So

Moles of oxygen

1 mol Nitrogen required for 2 mol O_2

0.5 mol N_2 required for 1 mol O_2

Moles of Nitrogen

Volume

Consider the reaction is taking place at standard temperature and pressure. Then 22.4 L reacts with 44.8 L of oxygen. Thus, 33.6 L of oxygen needs 16.8 L of nitrogen.

The condition of STP is the standard temperature and pressure. The temperature of 298 K and  pressure of 1 atm is called the standard condition.

At STP the volume of every substance is 22.4 L. The reaction of  nitrogen and oxygen forming nitrogen dioxide is given below:

[tex]\rm N_{2} + 2O _{2} \rightarrow 2 NO_{2}[/tex]

As per this reaction, 22.4 L of nitrogen reacts with  (2 × 22.4) = 44.8 L of oxygen. Hence, the volume of nitrogen required by 33.6 L of oxygen is calculated as follows:

(33.6 L × 22.4 L) / 44.8 L = 16.8 L

Therefore, the volume of nitrogen required to react with 33.6 L  of oxygen is 16.8 L.

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In this case, among the list of components given, the abiotic factors are water, rock, soil, and sun.

An abiotic factor is a non-living part of an ecosystem that shapes its environment.

Biotic and abiotic factors make up a community via interaction.

Biotic factors are considered living things (having "life") while abiotic factors are simply non-living things.

Hence, in this case, among the list of components given, the abiotic factors are water, rock, soil, sun

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Answer:

mass number = protons + neutrons.

Explanation:

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

Answer:

Yes

Explanation:

The first step of harvesting is draining the paddy. Next, farmers cut the plants -- with a scythe or sickle if by hand -- and transport them elsewhere to be laid out and dried for two or three days. Rice can be cut by hand or machine. In the developed world, harvesting by hand is still very common.

Answer:

300cm³

Explanation:

volume=l×b×h

4cm×15cm×5cm

=300cm³

Answer:

3139542g

Explanation:

That's because if you talk about

4.5

moles of sodium fluoride, you would get a really absurd number of grams.

Answer:

C.  State

Explanation:

The textures are different

the colors are different

the shininess is different

the state is the same =====> solid

Answer: 0.8 liters

Explanation:

Given chemical reaction is:

N₂ + 3H₂ → 2NH₃

From the stoichiometry of the reaction, it is clear that:

3 liters of H₂ = produce 2 liters of NH₃

1.2 liters of H₂ = produce 2/3 × 1.2 = 0.8 liters of NH₃

(If it says 0.80, that's the same as 0.8!)

Answer: 0.8 liters

Explanation: Given chemical reaction is:N₂ + 3H₂ → 2NH₃From the stoichiometry of the reaction, it is clear that:3 liters of H₂ = produce 2 liters of NH₃1.2 liters of H₂ = produce 2/3 × 1.2 = 0.8 liters of NH₃(If it says 0.80, that's the same as 0.8!)

The number of moles of C present in C₅H₁₂ that contains 22.5 g of H is 9.375 moles

1 mole of C₅H₁₂ = (12×5) + (1×12) = 72 g

Mass of H in 1 mole of C₅H₁₂ = 12 × 1 = 12 g

Thus,

12 g of H is present in 72 g of C₅H₁₂

Therefore,

22.5 g of H will be present in = (22.5 × 72) / 12 = 135 g of C₅H₁₂

72 g of C₅H₁₂ contains 5 moles of C

Therefore,

135 g of C₅H₁₂ will contain = (135 × 5) / 72 = 9.375 moles of C

Thus, 9.375 moles of C is present in C₅H₁₂ that contains 22.5 g of H

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To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. The outermost electrons are called valence electrons and its energy is higher than the core electrons.

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron.

The electrons that are in the outermost electron shell, also known as the valence electrons, have higher energy than those in the inner electron shells.

Therefore, the outermost electrons are called valence electrons and its energy is higher than the core electrons.

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answer:

is Well-Known Member. For a 35" you should be in the 28-32 range on road.

Explanation:

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The elaboration likelihood model emphasizes the use of direct persuasion and peripheral persuasion methods.

What is direct persuasion and peripheral persuasion?

This theory involves a dual process which explains how attitudes are changed in individuals through persuasion.

These methods help in the formation of attitude which makes, in this case,  option use of direct persuasion and peripheral persuasion.

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Answer:

C. direct . . . peripheral

Explanation:

Because I said so.

The heat absorbed by 47.5g of silver (Ag) when the temperature rises by 10 °C is 111.625 J .

Specific heat, the quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree.

The units of specific heat are usually calories or joules per gram per Celsius degree.

The equation used to solve for specific heat capacity is this:

q = mcΔT

where q heat absorbed or lost,

c is the specific heat capacity,

m is the mass, and

ΔT is the change in temperature

= final temperature− initial temperature

Given that m = 47.5g

ΔT = 10 K

Specific Heat of silver = 0.235 J/gK

Therefore

q = 47.5 * 0.235 * 10

q= 111.625 J

Therefore the heat absorbed by 47.5g of silver (Ag) when the temperature rises by 10 °C is 111.625 J .

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c3h6 + cl2---- c3h6cl2 is a type of  equation represents an addition reaction because new products are formed.

Addition reaction is a type of reaction in which one molecule combines with another to form a bigger molecule having no other products. We can see that the above reaction has no byproduct.

So we can conclude that c3h6 + cl2---- c3h6cl2 is a type of  equation represents an addition reaction because new products are formed.

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The net force is the sum of all of the forces that cancelled out to zero. Hence, option D is correct.

The pushes or pulls on an object with mass causes it to change its velocity.

The net force is the vector sum of all forces acting on an object. Force is a vector quantity.

Two forces of equal magnitude when acting on an object in opposite directions will cancel out each other.

As a result net force is equal to 0. The word net here shows the total force acting on the object.

Hence, option D is correct.

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What is force?

Hence, option D is correct.

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Answer:

The metal strip on the left has a lower activity than the one on the right.

(Took the exam)

Answer:

234.6

Explanation:

the most important methods are A and B

When using a scientific method, two of the most important steps are stating the problem and making a hypothesis. So the correct option is B.

Any kind of biological investigation will generally start with an observation. An observation is something that catches the attention of the biologist. For example, a microbiologist notices that a bacteria is not stained by any stain and wonder why this is happening.  

The base of biology and other sciences have a problem-solving approach called the scientific method. The scientific method has five main steps and an additional feedback step:

Therefore, when using a scientific method, two of the most important steps are stating the problem and making a hypothesis. So the correct option is B.

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The molarity of the potassium acetate solution given the data is 1.584 M

This is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:

Molarity = mole / Volume

Mole = mass / molar mass

Mole of CH₃COOK = 19.4 / 98

Mole of CH₃COOK = 0.198 mole

Molarity = mole / Volume

Molarity of CH₃COOK = 0.198 / 0.125

Molarity of CH₃COOK = 1.584 M

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