Calculate the molecular formula of a compound with the empirical formula CH O and a molar mass of 150 g/mol.

A) C2H4O2

B) C3H6O3

C) C4H8O4

D) C5H10O5

E) C6H12O6

Answers

Answer 1

The molecular formula : D) C₅H₁₀O₅

Further explanation

Given

The empirical formula CH₂O

The molar mass of 150 g/mol

Required

The molecular formula

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

(empirical formula) n = molecular formula  

(CH₂O)n = 150 g/mol

(12+2.1+16)n = 150

(30)n = 150

n = 5


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True or False? When a gas condenses to a liquid it absorbs heat from its
surroundings.


1.True
2.False

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Answer:

True

Explanation:

because it never stops doing it

transfer of energy by electromagnetic -science question
A.conduction
B.convection
C.radiation
D.reflection

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Answer:

B. convention

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Which compound below has the highest iron content?
Feo
FeCl2
FeSO4
Fe(OH)2

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ANSWER:

Fe(OH)2

Explanation:

Fe(OH)2

The highest iron content.

A compound is a substance that consists of the atoms or the ions of the two or more different elements that are joined by a chemical bond and can't be separated by any physical means. Like water is a compound of oxygen and hydrogen.

This the answer is Fe(OH)2.

The highest iron content of the iron is the second iron hydroxide, and it is an inorganic compound that makes salts from a compound of iron sulfate. Has white sold traces of oxygen which gives it a greenish tint. It can be seen in its mineralogical forms as a form of green rusting.

Hence the option D is correct.

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is aluminum intensive or extensive

Answers

Answer:

Intensive

Explanation:

Aluminium is an Intensive Metal

#HopeItHelps

Aluminum is intensive

is a cellphone made from renewable resources *

Answers

Answer:

Mobiles are made from many non-renewable materials which have been extracted from the earth – such as: Metals. Plastics.

Explanation:

Answer: they are made from many metals,plastics. etc...

Explanation:

they also aren't bio-degradeable so they're also harmful for the environment.

how do the structures of particles in substances vary?

Answers

Answer:

56

Explanation:

how many
moles are in 9.01 x 1023 molecules of water. answer should be rounded to three significant figures.
A. 1.50
B. 15.0
C. 0.150
D. None of the above

Answers

Answer:

A. 1.50

Explanation:

9.01 x 1023 molecules* 1 mol/ 6.022×1023 molecules= 1.49618067087 moles

Rounded would be 1.50

The sum of the atomic masses for any compound is the compound’s:
Empirical mass
Compound mass
Atomic mass
Molar mass

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The correct answer is molar mass

Please help!!! How many moles are in 4.87x1024 atoms of Mg

Answers

Do you still need help with this

Which two subatomic particles have an equal, but opposite charge?

Answers

Answer:

Electrons have a negative charge. The charge on the proton and electron are exactly the same size but opposite. Neutrons have no charge. Since opposite charges attract, protons and electrons attract each other.Hope that helps

Explanation:

What is the kinetic energy of a 9 kg object moving at a velocity of 5 m/s?

Answers

In classical mechanics, kinetic energy (KE) is equal to half of an object's mass (1/2*m) multiplied by the velocity squared. For example, if a an object with a mass of 10 kg (m = 10 kg) is moving at a velocity of 5 meters per second (v = 5 m/s), the kinetic energy is equal to 125 Joules, or (1/2 * 10 kg) * 5 m/s2.

(100 points) Imagine that the ability to cool materials down to below 200 K (–100° F) was not discovered until 1950. Which technology would that have most impacted?
electromagnetism
crystallography
metallurgy
superconductivity

Answers

Answer: (D) Superconductivity

Explanation: Edge 2021

Answer:

D

Explanation:

got it right. :)

6. An unknown compound is analyzed and found to consist of 49% carbon, 2.7
% hydrogen, and 48.2 % chlorine. If the molecular mass of the compound is 150,
what is the molecular formula of the compound?

Answers

Answer:

Molecular formula = C₆H₄Cl₂

Explanation:

Given data:

Percentage of hydrogen = 2.7%

Percentage of carbon = 49%

Percentage of chlorine = 48.2%

Molar mass of compound = 150 g/mol

Molecular formula = ?

Solution:

Number of gram atoms of H = 2.7 / 1.01 = 2.67

Number of gram atoms of Cl = 48.2 / 16 = 1.36

Number of gram atoms of C = 49 / 12 = 4.08

Atomic ratio:

            C                      :           H             :           Cl

           4.08/ 1.36         :     2.67/1.36       :       1.36/1.36

            3                      :        2                 :        1

C : H : Cl = 3 : 2 : 1

Empirical formula is C₃H₂Cl.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass = 12×3 + 1.01 ×2 + 35.5 = 73.52 g/mol

n = 150 / 73.52

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₃H₂Cl)

Molecular formula = C₆H₄Cl₂

What is a poverty line?

Answers


Description
The poverty threshold, poverty limit, poverty line or breadline, is the minimum level of income deemed adequate in a particular country. Poverty line is usually calculated by finding the total cost of all the essential resources that an average human adult consumes in one year. Hop this help you

How many formula units are present in 25.0 mol of sodium chloride

Answers

25 x 6.022 x [tex]10^{23}[/tex]formula units are present in 25.0 mol of sodium chloride.

What are moles?

A mole is defined as 6.02214076 × [tex]10^{23}[/tex]

of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

One mole of NaCl contains 6.022 x [tex]10^{23}[/tex] NaCl formula units.

25.0 mol of sodium chloride contains 25 x 6.022 x [tex]10^{23}[/tex].

Hence, 25 x 6.022 x [tex]10^{23}[/tex]formula units are present in 25.0 mol of sodium chloride.

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The number of formula units are present in 25.0 mol of sodium chloride is 25 x 6.022 x 10 ²³ formula units of sodium chloride.

What is formula Units ?

A formula unit in chemistry is the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations.

It is the lowest whole number ratio of ions represented in an ionic compound.

Hence, The number of formula units are present in 25.0 mol of sodium chloride is 25 x 6.022 x 10 ²³ formula units of sodium chloride.

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The reaction between gallium bromide and sodium sulfite will yield ___ ?

Answers

Answer:

An equation for a chemical reaction in which the number of atoms for each element in the ... sulfide: 8 Fe + S8 ---> 8 FeS o _____ DECOMPOSITION _____: Definition - A single ... Hydrogen peroxide will produce water and oxygen gas if left in sunlight. (a) ... Sodium oxide reacts with carbon dioxide to form sodium carbonate.

sorry if wrong:(

Explanation:


CuSO4 +
KI →
Cul +
12 +
K2SO4

Answers

what’s exactly is the question?

which cycle results in death of the host cell
A.lytic cycle
B.lysogenic cycle
C.both

Answers

Answer:

A. lytic cycle is the correct answer

Help please!! I'll name you brainliest!!

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Answer:

magesium di chloride

Explanation:

it has one magnesium and 2 chlorines

Answer:

Magnesium Chloride

why do boys my age not like me ?

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Answer:

Because boys are overrated

Explanation:

Answer:

id.k, I've been asking myself the same thing.

Explanation:

-_-

4 Na + O2 → 2 Na2O

6.79 moles of O2 will react to form how many moles of Na2O?

Answers

Answer:

13.94moles of Na₂O

Explanation:

The balanced reaction expression is given as:

        4Na  +  O₂  →   2Na₂O

Given parameters:

Number of moles of O₂ = 6.97moles

Unknown:

Number of moles of Na₂O

Solution:

 To solve this problem;

            1 mole of O₂  will produce 2 moles of Na₂O ;

            6.97 moles of O₂ will produce 6.97 x 2  = 13.94moles of Na₂O

Something that is made out of natural resources for human use is called

Answers

Answer:

Man-made resources

Explanation:

Humanized resources are items or substances that have value to human lives that do not occur in the natural world. Examples of man-made resources include plastic, paper, soda, sheet metal, rubber and brass. These contrast with natural resources, such as water, crops, sunlight, crude oil, wood and gold.

Dylan is completing an experiment in science class. The teacher gave Dylan a raw egg that had the shell removed. The egg is surounded by a membrane. Dylan gently placed the egg into a solution. Below is a diagram of the concentration of water molecules in the egg and in the solution.



Based on the diagram, what will happen to the egg?
A.
It will shrink because water molecules will move out of the egg until all the water molecules are in the solution.
B.
It will swell because water molecules will move into the egg until the concentrations are equal.
C.
It will swell because water molecules will move into the egg until all the water molecules are inside the egg.
D.
It will shrink because water molecules will move out of the egg until the concentrations are equal. HELPPPPPPPPPPPPPPPPPP PLS

Answers

Answer:    AA

Explanation:

PLEASE ANSWER BY 9:00pm PT

“A person takes in a breath of 450.0 mL air at 756 mmHg and -10.0°C. Assuming that amount and pressure remains constant, what is the volume of air when it warm to body temp (37.0°C)? (Convert °C to Kelvins (+273))”
- my chem teachers question

The given answer is 58.9 mL

I didn’t know how to get to that conclusion
And I have to show my work

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Answer:

thanks to all the mortal those who are born must die one day that it cut in cannot be avoided as ripe fruit fall of the tree so it is common to all the mortal those who are born must die one day that it cut

Explanation:

silghjnb bj i bb b nv bv hc U and lamenting produce a few of the tree so much for your time is common to both of us ☺️ to all the said that death of the tree so it cut in cannot be avoided as well as well but the mortal Kombat X the said


What does the large number in front of
the molecule represent?

Answers

A large number in front of a compound designates how many units there are of that compound. Parentheses can be used to designate a special structure, where other molecules are attached to the larger, complex molecule.
It represents the Atomic mass

Consider the reaction and the rate law below.

2O3 → 302
R= k[03]2

What is the overall order of the reactants in this rate law?

A. 0
B. 1
C. 2
D. 3​

Answers

The overall order of the reactants in this rate law : 2

Further explanation

Given

Reaction

2O3 → 302

The rate law :

R= k[03]²

Required

The overall order

Solution

The overall order  : the sum of orders for each reactant

For A + B ---> C + D

r = k [A]ᵃ[B]ᵇ

The overall reaction order is m+n

So for the rate law of R= k[03]², the overall order = 2

What is the relationship between a front and cloud formation?

Answers

Answer:

Weather fronts can cause clouds to form. Fronts occur when two large masses of air collide at the Earth's surface. Warm fronts produce clouds when warm air replaces cold air by sliding above it.

Explanation:

The diagram illustrates the water cycle.

Parts of the water cycle labeled U through Z. U: Water moving from a lake into the clouds. V: Clouds. W: Water falling from clouds as rain and snow. X: Water moving from ground to the clouds. Y: Water flowing down the mountainside into a lake. Z: Underground water going into lake.
Which process occurs at location W?

precipitation
evaporation
condensation
transpiration

Answers

Answer:

The Answer is Precipitation

Explanation:

Look it up on and then also got it right on the Unit Test and the Quiz.

The diagram illustrates the water cycle, the process that occurs at location W is precipitation. The correct option is a.

What is precipitation?

Precipitation is any product of the condensation of atmospheric water vapour that falls under gravitational pull from clouds. The main forms of precipitation include drizzle, rain, sleet, snow, ice pellets, graupel and hail.

Precipitation occurs when a portion of the atmosphere becomes saturated with water vapour so that the water condenses and precipitates or falls. Thus, fog and mist are not precipitation but colloids, because the water vapour does not condense sufficiently to precipitate. Two processes, possibly acting together, can lead to air becoming saturated: cooling the air or adding water vapour to the air. Precipitation forms as smaller droplets coalesce via collision with other raindrops or ice crystals within a cloud. Short, intense periods of rain in scattered locations are called showers.

Precipitation is a major component of the water cycle and is responsible for depositing the fresh water on the planet.

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Which of the following statements best explains how the first generation 20 points
lady beetle from the above model changed in the later generations? *
Lady Booties
蒙赖隊徽
Finn
Gameretlen
Later
Genovation
In the first generation, the beetles with the dark spotted trait had a better chance of
survival. The beetles changed their color to better adapt to their environment, and the
species evolved to have a lighter color.
In the first generation, the beetles with the dark spotted trait had a better chance of
survival. The trait mutated over time, causing the beetles with that trait to be darker,
and the species evolved to have a darker color.
In the first generation, the beetles with the dark spotted trait had a lower chance of
sury The trait mutated over time, causing the beetles with that trait to be lighter,
and the species evolved to have a lighter color.
In the first generation, the beetles with the dark spotted trait had a lower chance of
survival. The beetles changed their color to better adapt to their environment, and the
species evolved to have a lighter color.

Answers

Answer:

In the first generation, the beetles changed to have light spots. The beetles with the light spotted trait had a better chance of survival causing the species evolved to have lighter spots.

Answer:

In the first generation, the beetles with the dark spotted trait had a better chance of survival. The trait mutated over time, causing the beetles with that trait to be darker.

Explanation:

In the picture that I had, it shows that some of the beetles in the first generation started to develop spots on their back or wings. It shows that later down the line, their backs start to get even more darker which means that is must be a trait that mutated over time that would allow the beetles with that trait to be significantly darker. They can't just change their traits if they want to so it would have to be something like mutation that caused it.

Which of the following statements does not describe a physical property of chlorine?
O The color of chlorine gas is green.
O The density of chlorine gas at standard temperature and pressure is 3.17 g/L. OChlorine combines with sodium to form table salt.
O The freezing point of chlorine is -101°C.​

Answers

Answer:

the chlorine gas is green

Explanation:

the density of

The statement that does not give description of physical property of chlorine in the question is   (The color of chlorine gas is green)

A physical property can be regarded as characteristic of matter which is not associated along with a change of it's chemical composition.

Some physical properties of substance can include density, hardness as well as  color, melting and boiling points, or electrical conductivity.

The freezing point ( -101°C ) as well as the density ( 3.17 g/L.) of chlorine  as given in the question are all physical properties because it not considered as been associated with a change chlorine chemical composition.

Therefore, the first option A is correct.

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