Compound X has the molecular formula C3H6, and Compound Y has the molecular formula C6H12. How are the two compounds related? A.They are made of the same elements, but are different compounds B.They are identical compounds expressed in different ways. C. They are different compounds, but made from the same molecule.

Answers

Answer 1
A. Same elements, different compounds
Answer 2
They are made of the same element, but are different compounds 

Related Questions

What is the oxidation state of each element in the species Mn(ClO4)3? I'm going over oxi-redox reactions from a long time ago and I'm trying to remember properly.
Mn=3+
Cl=7+
and oxygen=2- right?

Answers

The following are the answers:
 =oxygen  equals to a charge of 2-
number of atoms is -24
=Mn equals to the charge of +3
Mn=  3+3x-24=0
let x be the charge of Cl, so:
23-3=3x
20/3=x
=6.67 or 7
x= 7
= Cl has a charge of +7

You are right about your answers

Which would you expect to experience a greater effective nuclear charge? which would you expect to experience a greater effective nuclear charge? a 2p electron of an atom a 3s electron of a na atom?

Answers

Answer: in atom of sodium (Na) you would expect that a 2p electron experience a greater effective nuclear charge.

Explanation:

 
The effective nuclear charge, Zefff, is the net positive charge experienced by an electron in an atom with more than one electron.

The outer electrons of an atom with several or many electron are simultaneously attracted to the protons in the nucleus and repelled by the negatively charged electrons.

The effective nuclear charge on that electron is calculated using this equation:

Z eff = Z − S, where Z is the number of protons in the nucleus (atomic number), and S is the average number of electrons between the nucleus and the electron in question (the number of non-valence electrons).

For sodium (Na) atomZ is 11, and the electron configuration of the sodium (Na) atom is:

Na (Z=11) : 1s^2 2s^2 2p^6 3s^1

So, the effective nuclear charge of the electrons in the 2p orbitals is greater than the effective nuclear charge of the electron in 3s, given that the there are 10 electrons closer to the nucleus  than the electron in the 3s orbtial, while there are only 4 electrons closer to the nucleus than the 2p electrons.

This is, for a given atom, the further away is one electron from the nucleus the less the effective nuclear charge. That is what is happening with the 3s electron, which is a valence electron.

Answer:

A 2p electron of a Ne atom

Explanation:

Mastering chemistry

How many neutrons are in an atom of tin? Round your answer to the nearest whole number.

Answers

There are 50 neutrons in and atom of tin.

Answer: 69

Explanation:

As we know that the formula to find the no of neutrons= Atomic mass (A)- atomic number (Z)

No of neutrons (n)=A-Z

n=1189-50

n=69

What is the ph of a solution with a hydroxyl ion (oh-) concentration of 10-10 m? what is the ph of a solution with a hydroxyl ion (oh-) concentration of 10-10 m? ph 10 ph 12 ph 4 ph 2?

Answers

According to this formula:
pH = - log [H]
And, pOH = - log [OH] >>> (1)
Where, pH + pOH = 14  >>> (2)
∵ the hydroxide ion concentration = (OH-) = 10 ^ -10 M
from (1) and (2) and by substitution: 
∴ pOH = - log [10^-10] = 10 
∴ pH = 14 - 10 = 4 

The pH in chemistry has been defined as the "power of hydrogen" that specifies and estimates the acidity and basicity. The pH of the solution with a hydroxyl concentration of 10⁻¹⁰ is 4. Thus, option c is correct.

What is pH?

pH has been defined as the  "potential of hydrogen" that is used to define the specificity of the acid and alkaline behavior of the solution. It has been the measure of the hydrogen or the hydroxide ions concentration dissociated into the solution.

pH is calculated as:

pH = −log ([H⁺])

Given,

Hydroxide ion concentration = 10⁻¹⁰

The relation between pH and pOH is given as:

pOH = - log [OH⁻]

pH = 14 - pOH

pOH is calculated as:

pOH = - log [OH⁻]

pOH = - log [10⁻¹⁰]

pOH = 10

Substituting values in the formula for pH as:

pH = 14 - pOH

pH = 14 -10

= 4

Therefore, option c. the pH is 4.

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What happens to the shape of a liquid when you pour it into a container?

Answers

It shifts and the temperature changes I think hope this helps

Which has the lighter mass one mole of platinum or one mole of zirconium?

Answers

zirconium should be the lighter mass 

During the process of photosynthesis, plants use energy from the Sun to transform carbon dioxide from the air into A. minerals and liquid carbon dioxide. B. protein and minerals. C. oxygen gas and molecules of sugar.

Answers

Hello!

Through the process of photosynthesis, plants convert carbon dioxide to glucose and oxygen.

Answer:
C. oxygen gas and molecules of sugar.

Photosynthesis is the process through which plants make their own food.

Special structures called chloroplasts—located inside plant cells—help plants capture light energy from the Sun. The plants then use the energy to build molecules of sugar from carbon dioxide gas and water. Oxygen gas is a waste product of photosynthesis. Plants releases this waste oxygen into the air.


half life worksheet answer key 1. How long does it take a 100.00g sample of As-81 to decay to 6.25g?

Answers

The half life of As-81 is 33 seconds;
6.25 g = 100 × (1/2)^n, where n is the number of half lives
(1/2)^n = 0.0625
        n = 4
Thus, the time taken = 33 ×4 = 132 seconds
Therefore, it takes 132 seconds or 2 mins 12 seconds for it to decay to 6.25 g

Answer:

132 seconds ( 2 Minutes 12 seconds).

Explanation:

Half life is basically the time it takes for a compound to decay to half of it's original mass.

In this problem, the compound is As. The half life of As-81 is 33 seconds. This means it takes 33 seconds for 100 g of As-81 to decay to 50g. The question however id to find the time it takes for it to decay to 6.25g.

We find how many half life's it would take,

100 --> 50 (First half life)

50 --> 25  (Second half life)

25 --> 12.5 (Third half life)

12.5 --> 6.25 (Fourth half life)

This means the total time is 4 * 33 (Half life) = 132 seconds ( 2 Minutes 12 seconds).

Describe two uses of surfactants

Answers

Hi there, kiddo!
There are actually more than two ways.
I’ll list what I know and you can choose which ones best fit your question.

Surfactants may act as:
-detergents,
- wetting agents,
-emulsifiers,
-foaming agents,
-and also dispersants.

I hope this was enough information to fully answer your question. Happy studying!
~Brooke❤️

Answer:

if its on edge this is what it provides!

- Surfactants are used to help improve gas exchange in the lungs of premature infants.

- Surfactants are used to prevent salad dressings from separating.

- Pulmonary surfactants reduce the surface tension of the gas exchange surfaces in the lungs, allowing gases to diffuse more easily.

- Surfactants help the water molecules and oil molecules in salad dressings interact and mix.

Make sure to change up the answer a bit!

Soda is acidic, I need to know what kind of acid soda includes..

My options are:

1. Sulfuric acid - found in batteries and acid rain.

2. Acetic acid - found in vinegar.

3. Citric acid - found in citrus fruits like lemons and limes.

4. Hydrochloric acid - found in stomach acid and many industrial applications.

Please help it’d mean a lot! <3

Answers

In sodas carbon dioxide reacts with water and that crates Carbonic Acid

How many grams are in 1.68 x 1026 molecules of CO2? (molar mass=44.01 g/mol) (Hint: You will need to use your entire stoichiometry flow chart)

Answers

According to Avogadro's law 1 mole contains 6.022 ×10^23 particles
1 mole of carbon = 44.01 g/ mol
Therefore;
 44.01 g = 6.022 ×10^23 molecules
Hence, 1.68×10^26 molecules will have a mass of ;
   (44.01 × 1.68×0^26) / 6.022×10^23
   = 1.228 × 10^4 molecules


Answer:

There is [tex]12277.494g[/tex] of CO2

Explanation:

We know that the molar mass of CO2 is [tex]44.01\frac{g}{mol}[/tex]

This means that in 1 mole of molecules of CO2 is 44.01 g of CO2

In one mole of molecules of any substance there are N molecules where N is defined as the Avogadro number.

[tex]N=AvogadroNumber=(6.02214076).10^{23}[/tex]

Therefore, we can write that

In [tex](6.02214076).10^{23}[/tex] molecules of CO2 (1 mole of CO2) there is 44.01 g of CO2 ⇒

In [tex](1.68).10^{26}[/tex] molecules of CO2 there will be x grams :

[tex]x=\frac{(44.01).(1.68).10^{26}}{(6.02214076).10^{23}}g=12277.494g[/tex]

We answer that in [tex](1.68).10^{26}[/tex] molecules of CO2 there is [tex]12277.494g[/tex] of CO2

Which of the following statements is true?
A. Stars that appear to move very much are very far from earth

B. The more a star appears to move, the farther is it from earth

C. Stars that do not appear to move are very close to earth

D. The less a star appears to move, the farther it is from earth.

Answers

D The less a star appears to move, the farther it is from earth.

Answer:

The correct answer is option D. The less a star appears to move, the farther it is from earth.

Explanation:

Hi!

Let's solve this!

The stars, like the Earth move. We see them still as they are far away, the distance is very large. The stars we see in motion are the ones that are very close.

Then, the further a star is, the quieter we will see it.

After the analysis, we conclude that the correct answer is option D. The less a star appears to move, the farther it is from earth.

The name of the commonly used hardness scale is: specific gravity organic Mohs inorganic

Answers

The Mohs Hardness Scale is by far the most commonly used hardness scale.

It rates minerals on a scale of 1 to 10, with 1 being the softest and 10 being the hardest.

At a 1 on the scale is talc, the softest mineral. At a 5 on the scale is apatite, with a medium value of hardness.  At a 10 is diamond, the hardest mineral. 

A way to discover where a mineral lands on the Mohs scale is to try a scratch test. In this test, you take two minerals and streak one of minerals on the other one to see if it leaves a scratch. If the mineral does leave a scratch, it is harder than the mineral being scratched. If the other mineral instead leaves a scratch on the mineral being used to scratch, the mineral being used to scratch is harder.

Here's an example: If you try to scratch a diamond with some talc, the talc will come away with a rather large scratch as diamond is much harder. Conversely, if you scratch talc with a diamond, the talc will still come away with a scratch because it is much softer than the diamond. You can use trial and error to find the hardness of a mineral if you are not sure.

Answer:

The Mohs Hardness Scale is by far the most commonly used hardness scale.

Explanation:

I'LL GIVE U BRAINLIEST

Which should be done in case of a laboratory accident? Check all that apply.

a)Stay calm.

b)Read directions completely.

c)Do not try to clean up a spill.

d)Follow the teacher’s directions.

e)Wear appropriate lab attire.

f)Leave the area.

Answers

a, b, c, d, e, f, all of them should be checked

Answer : The correct options are, (a), (c), (d) and (f).

Explanation :

There are some safety rules for science lab when we are performing the experiments :

Always wear the lab coat to protect you from chemicals. Always wear the gloves in your hands. Always wear the face mask to protect you from the pungent smell of chemicals. Always wear the glasses to protect the eyes. Before doing some experiment wash all the materials with distilled water.

There are some safety rules for science lab in case of a laboratory accident:

Always stay calm at that time. Do not try to clean up a spill. Always follow the directions of the teacher. Leave the area immediately.

Hence, the correct options are, (a), (c), (d) and (f).

A system at equilibrium is placed under stress by adding more reactant. If this reaction has a small equilibrium constant (Keq), how will the addition of this stress affect the equilibrium of this system.

Question options:

The equilibrium will shift to produce more reactant.

The equilibrium will shift to produce more product.

There is no way to predict how the stress will affect this system without more information.

The reaction will generate more heat.

Answers

The answer is the equilibrium will shift to produce more product. In accordance to Le Chatelier's principle, Q<Keq, this means the equilibrium shifts so that Q increases to equal Keq again, going against the disturbance. The equilibrium frequently tries to undo the given disturbance. To summarize, Since Q<Keq after the stress, Q↑ to answer the stress by creating more products.

which observation would be best evidence of carbon cycling?
A.) water droplets
B.)moving animals
C.)plant growth
D.) dead plants

Answers

its definitely gotta be b im pretty sure

Answer: C.)plant growth

Explanation:

The carbon cycling is a process in which the carbon and it's various organic forms are transformed and delivered to various earth spheres such as biosphere, geospheres, hydrospheres, pedospheres and atmosphere. Carbon is the basic element found in all life forms. The cycling of carbon can best be observed in the plant growth. This is because of the fact that carbon is obtained by the plants in the form of carbon dioxide which is a chief ingredient required for the process of photosynthesis. Photosynthesis is necessary for the plants to produce food in the form of carbohydrates required for the growth and metabolism in plants.

If 0.98 moles of BaCl2 are dissolved in enough water to make a 1.2-liter solution, what is the resulting molarity?
A. 0.55 M BaCl2
B. 0.82 M BaCl2
C. 1.2 M BaCl2
D. 0.45 M BaCl2

Answers

Correct Answer: Option B i.e. 0.82 M

Reason:
Given: number of moles of BaCl2 = 0.98, Volume of solution = 1.2 l

Molarity of solution = [tex] \frac{\text{number of moles}}{\text{volume of solution (l)}} [/tex]
                               = [tex] \frac{0.98}{1.21} [/tex]
                               = 0.82 M

 Thus, molarity of the solution is 0.82 M
The answer is B. 0.82 M BaCl2

How to generate the answer:

Let:

n = amount of substance
V = volume of solution

Equation for n:

n (BaCl2) = 0.98 mol. (unit of mole)

Equation for V:

V (solution) = 1.2L

Required:

c(BaCl2) =?

Equation for the whole problem:

c(BaCl2) = n (BaCl2) / V (solution)

c(BaCl2) = 0.98 mol / 1.2L

c(BaCl2) = 0.82 mol/L

= 0.82 M

Thus,

the resulting molarity is 0.82 M BaCl2

A chemistry teacher adds 50.0 mL of 1.50 M H2SO4 solution to 200 mL of water. What is the concentration of the final solution? Use .

Answers

Hello!

The concentration of the final solution when a chemistry teacher adds 50.0 mL of 1.50 M H2SO4 solution to 200 mL of water is 0,3 M

To calculate that, you'll need to use the dilution law, where initial and final concentrations are M1 and M2 respectively, and initial and final volumes are V1 and V2, as shown below. Keep in mind that the final volume is the sum of the 200 mL of water and the 50 mL of H₂SO₄ that were added by the teacher. 

[tex]M2= \frac{M1*V1}{V2}= \frac{1,50 (mol H_2SO_4/L)*50mL}{(50 mL + 200 mL)}=0,3(mol H_2SO_4/L)[/tex]

Have a nice day!

Answer:

option A

Explanation:

just took test on e2020

What is the total number of neutrons in an atom of 0-18?

Answers

A = mass number, A = protons + neutrons 
Z = atomic number, Z = protons 
neutrons = A - Z 
neutrons = 18 - 8 = 10 

Answer: The number of neutrons in given isotope are 10

Explanation:

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

The isotopic representation of an atom is: [tex]_Z^A\textrm{X}[/tex]

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

We are given:

An isotope having formula:  [tex]_{8}^{18}\textrm{O}[/tex]

Atomic number = Number of protons = 8

Mass number = 18

Number of neutrons = 18 - 8 = 10

Hence, the number of neutrons in given isotope are 10

What are geometric isomers?

A. compounds that have the same types of atoms arranged in different orders
B. compounds that have the same number of carbon atoms arranged in different orders
C. compounds that have the same atoms arranged in the same order, but with different three-dimensional orientations
D. compounds that have the same atoms arranged in the same order, and have the same three-dimensional orientations

Answers

C. compounds that have the same atoms arranged in the same order, but with different three-dimensional orientations.

Geometric isomers are compounds with the same atomic and bond composition but different spatial arrangements of the component atoms.

Geometric isomers

They are chemical compounds with the same chemical formula, the same atom/number of atoms with their respective bonds, but different arrangements of the atoms in space.

In other words, they are compounds with the same formula but different geometry of atoms.

When identical ligands are placed in the adjacent positions in geometric isomers, cis is used. When the ligands are in opposite positions, trans is used.

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Which of the following are observations?
- The candle floats.
- The tires are flat.
- The dog is barking.
- The tire is flat because of a decrease in temperature.
- If a person walks by, then the dog will bark.

Answers

An observation says nothing about cause; it is simply a description of a phenomenon. The first three are observations. The next two imply cause-effect relationships.
The first three are all observations

How many grams of nickel (+2) are required to replace all of the silver when 15.55 grams of AgNO3 are present?

Answers

2AgNO3 + Ni2+  = Ni(NO3)2 + 2Ag+

From the reaction, it can be seen that AgNO3 and Ni2+ has following amount of substance relationshep:

n(AgNO3):n(Ni)=2:1

From the relationshep we can determinate requred moles of Ni2+:

n(AgNO3)=m/M= 15.5/169.87=0.09 moles

So, n (Ni)=n(AgNO3)/2=0.045 moles

Finaly needed mass of Ni2+ is:

m(Ni2+)=nxM=0,045x58.7=2.64g

According to Charles Law, if you have a balloon inside a car at noon during a hot summer day the balloon molecules inside will increase in pressure.

A. true
B. false

Answers

Final answer:

The claim that a balloon's internal pressure increases due to Charles's Law on a hot day is false; Charles's Law relates gas volume to temperature at constant pressure, meaning the balloon's volume would increase, not pressure.

Explanation:

The statement that balloon molecules inside a balloon will increase in pressure on a hot summer day according to Charles's Law is false. Charles's Law actually states that the volume of a given amount of gas is directly proportional to its temperature on the Kelvin scale when the pressure is held constant. When the temperature inside the car increases, the gas molecules inside the balloon move faster and if the balloon is elastic and can expand, the volume of the gas will increase while the pressure inside the balloon will not necessarily increase if it is free to expand.

Write the balanced equation for the decomposition of hydrogen peroxide to form water and oxygen.

Answers

Hydrogen peroxide is H2O2, while water is H2O and oxygen (a diatomic gas) is O2. The (unbalanced) reaction is:
H2O2 --> H2O + O2
Notice that the H2O2 has 2 H atoms, and so does H2. This means that both must have the same coefficients, and we can adjust the coefficient of O2. Since H2O2 has 2 O atoms, and H2O has 1, we multiply O2 by 1/2:
H2O2 --> H2O + (1/2)O2
This has an equivalent number of H and O atoms on either side, but we want the coefficients to be whole numbers, so we multiply everything by 2:
2H2O2 --> 2H2O + O2
Final answer:

The balanced chemical equation for the decomposition of hydrogen peroxide into water and oxygen is 2 H2O2 (aq) → 2 H2O (l) + O2 (g).

Explanation:

The student has asked for the balanced chemical equation for the decomposition of hydrogen peroxide (H2O2) into water (H2O) and oxygen gas (O2). The reaction can be represented as follows:

2 H2O2 (aq) → 2 H2O (l) + O2 (g)

Here, the hydrogen peroxide molecules are breaking down into water molecules and oxygen gas. The equation is balanced with four hydrogens and four oxygens on both sides; therefore, adhering to the law of conservation of matter.

Which statement describes the Arrhenius interpretation of acids and bases

Answers

it is limited to situations that involve aqueous solutions of specific compounds

I hope this helps

Answer:

It is limited to situations that involve aqueous solutions or specific compounds.

Explanation:

the answer was correct on edge

How many electrons does the predictable (most common) ion of calcium contain?

Answers

Answer: 18

Justification:

1) The most common ion of calcium is Ca 2+

2) That means that the atom, neutral calcium, has lost two electrons.

3) The atomic number of calcium is 20.

4) Atomic number is the number of protons, so calcium has 20 protons.

5) Therefore, the neutral atom of calcium also has 20 electrons (to make a net charge of zero).

6) Then, the ion Ca 2+ has 20 - 2 = 18 electrons.

Answer: 18 electrons.

In the balanced redox reaction: 2 cu(s) + s(s) ® cu2s(s), how many electrons are gained or lost by each copper atom? select one:
a. each copper atom gains two (2) electrons.
b. each copper atom gains one (1) electron.
c. each copper atom loses one (1) electron.
d. each copper atom loses two (2) electrons.

Answers

The answer: C) each copper atom loses one (1) electron.

2Cu + S ⇒ Cu₂S

2Cu⁰ ⇒ 2Cu⁺ + 2e⁻    oxydation

2e⁻ + S⁰ ⇒ S⁻²            reduction 

In the reaction, copper is oxidized and it releases an electron and transfers it to the sulfur atom. In contrast to copper, sulfur is reduced and it receives two electrons.

Answer: Option (c) is the correct answer.

Explanation:

The given reaction equation is as follows.

            [tex]2Cu(s) + S(s) \rightarrow Cu_{2}S(s)[/tex]

The oxidation-reduction half reactions will be as follows.

Oxidation : [tex]Cu(s) \rightarrow Cu^{+} + 1e^{-}[/tex]

Reduction: [tex]S(s) + 2e^{-} \rightarrow S^{2-} [/tex]

By balancing the above half reactions, oxidation-half reaction will be as follows.

              [tex]2Cu(s) \rightarrow 2Cu^{+} + 2e^{-}[/tex]

Whereas reduction-half reaction will remain the same.

Hence, it shows that each copper atom is losing one electron to combine with a sulfur atom.

Therefore, we can conclude that each copper atom loses one (1) electron.

Which of the following is not an example of a scientific model?

Answers

Hello, 

Here is your answer:

The proper answer to this question is option B "a data table". Data tables are not examples of scientific models.

Your answer is B.

If you need anymore help feel free to ask me!

Hope this helps!

B. A data table is not an example of a scientific model. Your welcome

If you eat 3.00 moles of sugar, how many molecules did you consume?
3.00
2.00 x 10^23 molecules
5.00 x 10^ -24 molecules
1.81 x 10^24 molecules

Answers

1 mole is 6.02x 10^23 molecules

3 * 6.02*10^23 =1.806*10^24 molecules

How many milliliters of a 5.0 M H2SO4 stock solution would you need to prepare 108.0 mL of 0.45 M H2SO4?

Answers

Final answer:

To prepare 108.0 mL of a 0.45 M H2SO4 solution, you would need to measure 9.72 mL of the 5.0 M H2SO4 stock solution.

Explanation:

To solve this problem, we can use the concept of dilution. The formula for dilution is C1V1 = C2V2, where C1 and V1 are the concentration and volume of the stock solution, and C2 and V2 are the concentration and volume of the diluted solution.

In this case, the given concentration of the stock solution is 5.0 M and the volume of the stock solution needed is unknown. The desired concentration of the diluted solution is 0.45 M and the volume of the diluted solution is 108.0 mL. Plugging in these values into the dilution formula will give us the volume of the stock solution needed.

Let's solve for V1:

(5.0 M)(V1) = (0.45 M)(108.0 mL)

V1 = (0.45 M)(108.0 mL)/(5.0 M)

V1 = 9.72 mL

Therefore, you would need to measure 9.72 mL of the 5.0 M H2SO4 stock solution to prepare 108.0 mL of 0.45 M H2SO4.

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