Methane gas reacts with oxygen by combustion. How many moles of methane are needed to produce 3.5x10^-4 moles of carbon dioxide?

Answers

Answer 1

Answer:

3.5×10^-4 moles of methane is needed.


Related Questions

Which is a characteristic of colloids?
a. are homogenous mixtures
b. have large dispersed particles
c. will settle out over time
d. are made up of at least two substances

Answers

Answer:

D

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The definition of colloids is very disputed on whether or not it is homo/heterogenous. I wouldn't go with this answer, but its based on what you learned it was. At a microscopic level its hetero but at a macroscopic its homo.

They do have somewhat large dispersed particles but this better describes suspensions

They don't easily settle out.

And in order to be a mixture, they are made up of at least two substances

D is likely the best answer out of the bunch.

Colloids are made up of at least two substances. Therefore, option d is correct.

What are colloids?

A colloid can be described as a mixture in which one substance consisting of dispersed insoluble particles is throughout another substance. The particles should be dispersed in a liquid. The term colloidal suspension can be referred to unambiguously as the overall mixture.

A colloid exhibits a dispersed phase and a continuous phase. The dispersed phase particles have a diameter of about 1 nm to 1 μm. Some colloids are translucent due to the Tyndall effect and other colloids can be opaque or have a slight color.

Hydrocolloids can be described as certain chemicals that are colloidally dispersible in water. Therefore becoming very "soluble" they can change the rheology by raising the viscosity.

A colloid possesses a dispersed phase and a continuous phase. A solute in a solution is individual molecules, whereas colloidal particles can be bigger.

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Fill in the two processes that cause each of the following transitions. Ocean to cloud and cloud to glacier

Answers

Evaporation and precipitation

Answer:

evaporation (when water gets warmed up and turns into water vapor) and precipitation(when the ice crystals become so heavy and melt on the way through the troposphere)

limestone is a common building block used in texas and is a type of rock that forms in shallow marine settings due to selective precipitation some of the dissolved ions present in the marine setting are sodium potassium calcium nitrate chloride carbonate which ions form limestone

Answers

Answer:

Ca^+ and CO3^2-

Explanation:

Limestone is CaCO3. It is an important component of the shell of many species that have shells.

Limestone contains th calcium ion (Ca^+) and the carbonate ion (CO3^2-).

Limestone is used as a building material. It is usually mined as deposits below the ground.

how would you describe the size of atoms and molecules in your own words ?

Answers

Answer:

tomic size is the distance from the nucleus to the valence shell where the valence electrons are located. Atomic size is difficult to measure because it has no definite boundary. The electrons surrounding the nucleus exist in an electron cloud.

Explanation:

Answer:

Atomic size is the distance from the nucleus to the valence shell where the valence electrons are located. The separation that occurs because electrons have the same charge. The number of protons in the nucleus. The core electrons in an atom interfere with the attraction of the nucleus for the outermost electrons. and Molecular size is a measure of the area a molecule occupies in three-dimensional space. The amount of space any mass takes up in three-dimensional space is known specifically as its volume.

Plz help me and I promise I will make you he brainiest

Answers

Answer:

2

Explanation:

1 is definitely wrong

density must be lower to atop another liquid

in 3 ,I consider the example of water and oil whi has a lower boiling point

Answer:

2

Explanation:

Which atoms have an outer level of electrons that is one electron short of being full? Explain in a paragraph.

Answers

Explanation:

Sorry I tried but I do not know the answer but maybe someone else's know and can tell you the answer

NEED ANSWER FAST✴️✴️✴️✴️
What do phytoplankton do for the carbon cycle? Choose all that apply.


A. They take in oxygen for photosynthesis.

B. They take in carbon dioxide for photosynthesis.

C. When they die, the carbon left in them can be sequestered (stored) in the ocean bottom.

D. They are food for many animals, including some whales.

Answers

Answer:

B is the answer

Explanation:

Please hurry up and help me my teacher needs the answer NOW!

Answers

Answer:

3+(10G)=DG

ER_K5(O5G)+29K

Which element has a melting point of -157°c

Answers

Answer:

Krypton (Kr)

Explanation:

Krypton's melting point is -157.36°c

Which professional most likely uses X-ray technology?

a food critic
a dentist
a financial analyst
a pharmacist

Answers

a dentist is most likely to use x ray technology.

Answer:

a dentist

Explanation:

A 4.86 g piece of metal is placed in a graduated cylinder containing 15.5 mL of water the water level rose to 17.3 mL what is the density of the metal

Answers

Answer:

The answer is 2.70 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 4.86 g

volume = final volume of water - initial volume of water

volume = 17.3 - 15.5 = 1.8 mL

So we have

[tex]density = \frac{4.86}{1.80} \\ [/tex]

We have the final answer as

2.70 g/mL

Hope this helps you

which element has a grater atomic radius ?phosphorus or bismuth?

Answers

According to periodic trends, bismuth has the greatest atomic radius.

Which phrase correctly describes the particles that make up water vapor?
A. Having more energy than particles in liquid water
B. Making up a rigid but disorganized structure
C. Making up a rigid but ordered structure
D. Being compressed together so that they are touching

Answers

Answer:

i believe its A but im not sure

its the only one that makes any sense

plz mark  brainliest

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Explanation:

Answer:A

Explanation:

The state department of health manages issues
related to which of the following? Check all that
apply.

Answers

Answer:

water quality, nursing home safety, and emergency preparedness

Explanation:

i just answered it

Please Heeelp!!
Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.)

Note: you are writing the molecular, and not the net ionic equation.


___---> Ca(ClO)2 (aq) + H2O

Answers

2 HClO(aq) + Ca(OH)2(aq) = 2 H2O(l) + Ca(ClO)2(aq) is the balanced equation

Use the periodic table to determine the charge of the ions below. Select the correct answer from the drop-down menus.

A lithium ion has a charge of ______
A calcium ion has a charge of _______
An aluminum ion has a charge of ______
A fluorine ion has a charge of _______
An oxygen ion has a charge of ________

Answers

Answer:

A lithium ion has a charge of   +1.

A calcium ion has a charge of   +2.

An aluminum ion has a charge of   +3.

A fluorine ion has a charge of   -1.

An oxygen ion has a charge of   -2.

Below, the correct charges of the elements are listed;

A lithium ion has a charge of +1 A calcium ion has a charge of +2 An aluminum ion has a charge of +3 A fluorine ion has a charge of -1 An oxygen ion has a charge of -2

The ionic or electrical charge of an element is the new state the element acquires because of losing or gaining an electron.

When elements lose their electrons, they tend to attain a positive charge and when they gain an electron, they tend to acquire a negative charge. To easily identify the charge of the ions, the periodic table should be used.

Elements (metals) found on the left side of the periodic table tend to have a positive charge while elements (non-metals) on the right side of the table usually assume a negative charge.

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What is the smallest packet of electromagnetic energy that can be absorbed or emitted?

a proton
an electron
a photon
a wave

Answers

Answer:

C on edge

Explanation:

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The smallest packet of electromagnetic energy that can be absorbed or emitted is photon.

What is electromagnetic energy?

Radiation that travels in waves and has both electric and magnetic fields. It is derived from both natural and artificial sources. The power of electromagnetic energy can range from low to high.

Proton and electron are particles not any form of energy.Wave is a form of radiation.Photon is a small packets of energy whose energy is equal to .

Hence photon is the smallest packet of electromagnetic energy.

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What are the similarities and differences between the two fish varieties?

Answers

Answer-

Fish are obviously animals because they move, they have sensory organs (eyes, mouth, barbels), and they have body structure (skeletons, skin, etc.). They breathe oxygen. They eat other organisms to survive. Fish are different from other animals because they live in water.

Answer:

The surface fish live near the surface of the water, and the blind cave fish live in dark subterranean caves. The surface fish have eyes and pigmentation on their bodies. The blind cave fish don’t have eyes, and they’re often albinos.

A rectangular solid has a length of 3 cm a height of 4 cm and a width of 5 cm what is the solid volume ?

Answers

Volume is 60 and the area is 94 have a great day

Suppose 50.0 grams of compound AB reacts completely with 100.0 grams of compound CD, how many grams of products will be formed, according to the Law of Conservation of Matter?

a. 50
b. 100
c. 150
d. 200

Answers

Answer:

Option C = 150

Explanation:

First of all we will understand what is law of conservation of mass.

Law of conservation of mass:

This law stated that, mass can neither be created nor destroyed in a chemical equation.

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

For example:

In given photosynthesis reaction:

6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂

there are six number of carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of chemical equation so this reaction followed the law of conservation of mass because mases are same on both side.

In given chemical reaction:

AB    + CD      →      X

50 g +  100 g    =  150 g

Thus option c is correct.

true or false If beavers built a dam one stream, the kinds of plants and animals that lived around the stream would not be affected.

Answers

false because nearby snakes could want that spot

What converts electric energy to radiant energy and thermal energy?


Answers

Answer:

Many things, but i think a toaster...

Explanation:

how do you get from mass to moles in this problem?

Answers

Answer:

what problem?

True
False
Unlike gases, solids cannot
be compressed to a smaller
volume

Similar to the structure of
solids, atoms within a liquid
are in a fixed or locked
position

Both solids and liquids have
a fixed (unchanging) physical
shape
Both solids and liquids have
a fixed (unchanging) volume

Gases have a fixed
(unchanging) volume, shape,
and structure

Answers

Answer: True

Explanation:

What is the BEST scientific definition of the term “force”?

Answers

Answer:

Any unapposed interaction that will change the motion of an object.

Explanation:

My physics teacher had us write this down last week.

What is a "control" in an experiment? *

Answers

Answer:

The factor that the person experimenting has control over

Explanation:

A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable. This increases the reliability of the results, often through a comparison between control measurements and the other measurements. Hope this helped :)

What is 0.55 hectometers expressed in decimeters?
a.
550 dm
b.
5.5 dm
c.
55 dm
d.
0.00055 dm

Answers

Answer:

a. 550 dm

Explanation:

A rock displaces 475ml of water what’s its volume

Answers

Answer:

The rock displaces 475 mL of water.

475 mL is the volume of the rock.

1 mL = 1 cm^3  

The mass is just density times volume.

m = 475 * 2.5 = 125 g

Explanation:

convert 3.01€22 molecules of O²(a) mole of O²) ,volume at S.T.P,no of Oxygen atom. (d) mass​

Answers

Answer:

a )0.05 moles of O₂

b) 1.1207 dm³

c) 0.3× 10²³ atoms of oxygen

d) 1.6 g

Explanation:

Given data:

Number of molecules of O₂ = 3.01 × 10²² molecules

Number of moles of O₂ = ?

Volume of oxygen at ATP = ?

Number of oxygen atoms = ?

Mass of oxygen = ?

Solution:

The given problem will solve by using Avogadro number.

"It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance".  The number 6.022 × 10²³ is called Avogadro number.

Moles of oxygen:

1 mole = 6.022 × 10²³  molecules

3.01 × 10²² molecules  × 1 mol  / 6.022 × 10²³  molecules

0.05 moles of O₂

Number of atoms of oxygen:

1 mole = 6.022 × 10²³ atoms

0.05 mol × 6.022 × 10²³ atoms /1 mol

0.3× 10²³ atoms of oxygen

Volume of oxygen:

1 mole of oxygen at STP occupy 22.414 dm³

0.05 mol × 22.414 dm³ / 1mol

1.1207 dm³

Mass of oxygen:

Mass = number of moles × molar mass

Mass = 0.05 mol  × 32 g/mol

Mass = 1.6 g

Which statement accurately describes the two balls?
A. The golf ball has more inertia than the table-tennis ball, so it takes
more force to change the motion of the golf ball.
O B. The table-tennis ball has more inertia than the golf ball, so it takes
more force to change the motion of the table-tennis ball.
C. The table tennis ball has less inertia than the golf ball, so it takes
more force to change the motion of the table-tennis ball.
D. The golf ball has less inertia than the table tennis ball, so it takes
more force to change the motion of the golf ball.
SUBMIT

Answers

The answer is a. The golf ball has more inertia than the table tennis ball so it takes more force to change the motion of the golf ball

Answer:

A

Explanation:

The golf ball has more inertia than the table-tennis ball, so it takes

more force to change the motion of the golf ball.

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