Given the formula of a compound

What is the molecular formula for this compound?
1.
CH
2.
CH2
3.
CH3
4.
C₃H6

Answer:

Throughout the clarification section, the description of the situation is summarized.

Explanation:

Plant species mostly with such as photosynthesis have been providing us with just the very first food processing commodity.

Answer:

The only force on it is its weight, w=9800N

Explanation:

Answer:

I am looking for this as well. Can someone please help!

Explanation:

Answer:

here you go :)

Explanation:

i know it isn't pretty but i hope you use it well

Answer:

Scientific theories are the results of many experiments and observations.

Explanation:

I think this is ti sorry if I'm wrong :|

Answer:

it should be Robert Boyle

Answer:

Robert Boyle

Explanation:

he relationship between the volume and pressure of a given amount of gas at constant temperature was first published by the English natural philosopher Robert Boyle over 300 years ago.

Answer:

i dont know

Explanation:heheheheh

Answer:

A) (i) 4*10^12 Ibs , (ii) 600 * 10^9 Ibs  

(iii)

B) The use of  bricks or stone that can absorb the solar heat easily when the sun rays heat them up and this solar heat absorbed . is a typical example of a passive solar heating system.

C) Advantage : It is mostly cost free

disadvantage : there is no storage mechanism

Explanation:

A) Given that U.S uses roughly 4 million Gigawatt-hours per year in electricity and 50% of the electricity comes from coal

i) Determine how much carbon dioxide is released from burning coal each year

since 50% of electricity comes from coal

The Total energy produced by coal =2*10^12 Kw-h. also

1.0 kilowatt-hour of coal burned releases 2 lbs.

hence the Total amount of Carbon dioxide released from burning coal each year = 2 * 2 * 10^12 =  4 * 10^12 Ibs  

ii) Determine the reduction of carbon dioxide entering the atmosphere each year if coal usage could be reduced by 15% by utilizing solar energy

= 15% 0f 4*10^12

reduction of coal usage by 15% = 600 * 10^9 Ibs hence the amount of coal entering the atmosphere is reduced by 600 * 10^9 Ibs

iii) Advantages of using wind energy to generate electricity

B) Passive solar heating system

The use of  bricks or stone that can absorb the solar heat easily when the sun rays heat them up and this solar heat absorbed . is a typical example of a passive solar heating system.

C) advantage and disadvantage of solar heating system

Advantage : It is mostly cost free

disadvantage : there is no storage mechanism

Answer:

uhh 60??

Explanation:

The molecular mass of the compound could be 60g, the correct option is option c among all the given options.  

The weight of a molecule is measured by its molecular mass. Atomic weight is another name for it. It usually involves multiplying the total mass of all the atoms in the molecule by the overall number of the element's atoms.

For instance, there are two hydrogen atoms and one oxygen atom in water. The atomic weight of oxygen multiplied by two or more to get the typical hydrogen atomic mass gives the water molecule its mass. The atoms that make up the molecule are what determine an element's molecular mass.

Empirical formula is CH[tex]_2[/tex]O

Mass of Empirical formula =12+12+16=30g

Vapour density = Molar mass of compound/2

30= Molar mass/2

Molar mass of compound =60g

Therefore,  the molecular mass of the compound could be 60g, the correct option is option c among all the given options.  

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Considering the definition of strong acid, it dissociates completely in solution (option D) is always true of a strong acid.

An acid that completely dissociates in solution at constant temperature and pressure is called a strong acid.

In other words, strong acids are completely ionized, that is, in the ionization process they are completely transformed into cations or positive ions and anions or negative ions.

Strong acids are characterized by being very corrosive and have the ability to conduct electrical energy efficiently.

Examples of strong acids are hydrochloric acid (HCI) and hydrobromic acid (HBr).

It dissociates completely in solution (option D) is always true of a strong acid.

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Answer:

the number of moles of ethanol is 18 g sample is 0.390 mol

Explanation:

The computation of the  number of moles of ethanol is 18 g sample is shown below:

= Mass of ethanol sample ÷ molar mass of ethanol

= 18 g ÷ 46.064=84 g

= 0.390 mol

Hence, the number of moles of ethanol is 18 g sample is 0.390 mol

Answer:Deep ocean currents (also known as Thermohaline Circulation) are caused by: ... The sinking and transport of large masses of cool water gives rise to the thermohaline circulation, which is driven by density gradients due to variations in temperature and salinity. The earth's rotation also influences deep ocean currents.

Explanation:

Answer:

It may stand for 'Paid Time Off'

Explanation:

I need more context but that's probably it.

Answer:

gracias

Explanation:

Objects with more mass have more gravity. Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass.

Answer:

the moon or the sun

Explanation:

Answer:

True

Explanation:

In a given molecule protons in the same chemical environment absorb at the same applied field strength; whereas protons with different chemical environments absorb at different applied field strengths.

A set of protons in the same chemical environment are said to be equivalent. Hence, the number of signals in the NMR spectrum tell us the number of sets of equivalent protons present in the molecule.

Splitting of a signal in a proton NMR spectrum tells us the number of chemically non-equivalent hydrogens in the immediate vicinity of the hydrogen giving the signal.

Answer:

0.1334

Explanation:

The number of atoms per unit (n) is given by:

[tex]n=\frac{\rho a^2bN_a}{A} \\\\where\ a=5.83*10^{-8}cm,b=a=3.18*10^{-8}cm,\rho=7.3\ g/cm^3,\\N_a=Avogadro\ number=6/022*10^{23} mol^{-1},A=atomic\ weight\\=118.68 \ g/mol\\\\n=\frac{7.3* (5.83*10^{-8})^2*(3.18*10^{-8})*6.02*10^{23}}{118.69}\\\\n=4\ atoms/unit[/tex]

The atomic packing factor (APF) is:

[tex]APF=\frac{n(\frac{4\pi R^3}{3} )}{a^2b} \\\\But\ R=atomic\ radius=1.51*10^{-8}\ cm\\\\APF=\frac{4(\frac{4\pi (1.51*10^{-8})^3}{3} )}{(5.83*10^{-8})^2*3.18*10^{-8}}\\\\APF=0.1334[/tex]

Answer:

Molality of the solution = 0.7294 M

Explanation:

Given:

Number of magnesium arsenate = 1.24 moles

Mass of solution = 1.74 kg

Find:

Molality of the solution

Computation:

Molality of the solution = Mole of solute / Mass of solution = 1.74 kg

Molality of the solution = 1.24 / 1.7

Molality of the solution = 0.7294 M

Answer:

146.5g/mol

Explanation:

The volume of  gas effused is directly proportional to the square root of its relative molecular mass.

Let the volume of oxygen gas be V1

Let the volume of the unknown gas be V2

Let the molar mass of oxygen be M1

Let the molar mass of the unknown gas be M2

V1/V2 =√M2/M1

7.88/3.69 = √M2/32

2.14 = √M2/32

(2.14)^2 = M2/32

4.58 = M2/32

M2 = 32*4.58

M2 = 146.5g/mol

Answer:

Cell or cellular

Explanation:

Heyy!! Not sure, but cell and cellular are the same. They carry out particular jobs and functions. Hope this helps, thank you :) !!

Answer:

C₈H₁₈(l) + O₂(g) ⇒ CO₂(g) + H₂O(l)

Explanation:

Let's consider the unbalanced equation for the combustion reaction of octane.

C₈H₁₈(l) + O₂(g) ⇒ CO₂(g) + H₂O(l)

We can begin balancing H atoms by multiplying H₂O by 9, and C atoms by multiplying CO₂ by 8.

C₈H₁₈(l) + O₂(g) ⇒ 8 CO₂(g) + 9 H₂O(l)

Finally, we get the balanced equation by multiplying O₂ by 12.5.

C₈H₁₈(l) + 12.5 O₂(g) ⇒ 8 CO₂(g) + 9 H₂O(l)

Answer:

The coefficents will be 2, 25 --> 16, 18

Explanation:

Answer:21

Explanation:sadadasdasdad

Answer:

Facial hair growth is largely propelled by testosterone, a hormone. Testosterone levels can vary. For men between 19 and 38, the normal range is 264 to 916 nanograms per deciliter

Answer:

Explanation:

Destructive :D

According to the position of gamma rays in electromagnetic spectrum,the word which best describes gamma rays is destructive as they have high energy.

The electromagnetic spectrum consists of electromagnetic radiation  which consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.

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Answer:

Potassium

Explanation:

It's in group 1 in the periodic table of elements

Answer:

your answer should be the bottom

sorry if im wrong

Explanation:

Answer:

Chemical

Explanation:

the acid is a chemical and the molecules are getting torn apart by the acid