How many atoms are in 2 moles of oxygen?

Answers

Answer 1

Answer:

6.02 × 1,023

Explanation:

One mole of oxygen gas, which has the formula O2, has a mass of 32 g and contains 6.02 X 1,023 molecules of oxygen but 12.04 X 1,023 (2 X 6.02 X 1,023) atoms, because each molecule of oxygen contains two oxygen atoms.


Related Questions


Find the actual yield when the theatrical yield is 1.09g and percent yield is 90%.​

Answers

Actual yield/Theoretical yield *100= Percentage yield. So Actual yield = Percentage yield*Theoretical yield.
Therefore actual yield= 90/100 * 1.09g = 0.98g

Actual yield: 0.98 g

In Natural selection, who/what makes the decision about which traits are desirable and get passed to future generations?

please need help asap thank you.

Answers

Answer:

Different alleles and genes determine what gets passed down.

Explanation:

Its a pretty weird/ open ended question, but the alleles that help an organism survive, will be passed down more often because they are more "fit" and can out survive its competitors within a certain species.

what is combined to get calcium chloride​

Answers

Calcium chloride can be created by neutralising hydrochloric acid with calcium hydroxide.

Answer:

See below

Explanation:

This is a simple reaction.

Calcium and chlorine molecule are combined to get calcium chloride.

Ca + Cl₂ → CaCl₂

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

What color does red cabbage juice change in ammonia?

Answers

Answer:

Green

Explanation:

Ammonia turns the cabbage juice into a blue/green color because it is a base, a material that tastes bitter and makes an acid neutral.

Answer:

green

Explanation:

I did the experiment

1.37x1020 uranium atoms

Answers

Explanation:

1397.4 uranium atoms......

How do you prepare 500ml of 1.77M H2SO4 solution from an 18.0M H2SO4 Stock solution

Answers

Answer:

Take 49.2-ml of 18.0 M H2SO4 stock solution and pour it into a 500-ml volumetric flask. Fill to the 500-ml line with distilled water to make 1.77M H2SO4 solution.

Explanation:

use the formula M1V1=M2V2

volume must be in liters(L)

[tex](1.77)(500 \times {10}^{ - 3} ) = (18)v2 \\ 0.885 = 18v2 \\ v2 = \frac{0.885}{18} \\ v2 = 0.04916[/tex]

0.04916L × 1000 = 49.16 ml = 49.2 ml

how many kernels are in a bag of microwave popcorn?

Answers

There is about 95 kernels in each bag

Balance the equation:

Answers

Ca(OH)2 +2 HBr → CaBr2 + 2 H2O 

How many moles of Iron (III) Oxide are found in 429 grams of Iron III Oxide?

Answers

Answer:

2.686485288205376 Explanation:

1 grams Iron(III) Oxide is equal to 0.0062622034690102 mole.

Calculate the empirical formula for acetaminophen(Tylenol)

Answers

The empirical formula of acetaminophen (Tylenol) is C8H9NO2.

Which of the following methods of heat transfer causes the tectonic plates to move?

Conduction
Convection
Evaporation
Radiation

Answers

Convection. As Magma is a fluid.

When 25.0 g of NaCl is added to 175 g of water, the mass percent (m/m) NaCl is ________. 7.00% 8.00% 12.5% 25.6% 14.3%

Answers

Answer:

12.5%

Explanation:

percent blurf = quantity of blurftotal quantity×100quantity of blurftotal quantity×100

So for percent by mass, both quantities are expressed as mass, and it’s the mass of NaCl divided by the total mass of the solution, then times 100%

mass % NaCl = 25 g/175g×100

mass %NaCl = 14.3%

What is the wavelength of the above wave?

Answers

Answer:

well what above wave?? do you have a picture

Explanation:

Write the chemical formulas and names for the following ionic compounds. Strontium and hydroxide

Answers

Answer:

Sr(OH)2

Explanation:

Strontium hydroxide, Sr(OH)2, is a caustic alkali composed of one strontium ion and two hydroxide ions. ... Sr(OH)2 exists in anhydrous, monohydrate, or octahydrate form.

In a covalent bond between identical atoms, the electrons are shared between the atoms. If the atoms are not identical, the electron distribution is so that the electrons are closer to one atom than the other. This type of bond is called a(n) covalent bond.

Answers

Answer:

If the atoms are not identical, the electron distribution is electrons are closer to one atom than the other. This type of bond is called a(n) covalent bond.

Explanation:

Difference between Laboratory Thermometer and Clinical Thermometer.​

Answers

Explanation:

Can you please mark me the brillantest?

The difference between a laboratory thermometer and a clinical thermometer is that a clinical thermometer is used to measure body temperature, however a laboratory thermometer is not used for purpose of measuring body temperature
The clinical thermometer can be titled while reading the temperature values whereas a laboratory thermometer needs to be kept upright.

What can form along faults when pushed together or pulled apart?
O Mountains
O Volcanoes
O Both

Answers

Answer:

Both

Explanation:

if you pull a mountain a part that would be great consequences and if a volcano breaks there will be fire .

A Mountain is formed when two faults push together and a volcano is formed when two faults are pushed together and there is a pocket of air

Which answer is it for number 7

Answers

Answer:

The answer is I

The 4 one represents Solids coz in solids atoms are tightly packed

which of these gaseous elements is least reactive hydrogen helium nitrogen or oxygen

Answers

Answer: Nobel gases

i dont know what the options were but i hope that helped

What is the one defining abiotic factor of a desert?

cold temperatures

high winds

little or no rainfall

high humidity

Answers

Hello! :p .

deserts are known to have little to no rain fall & drop to very low temperatures at night! I hope this helps!

Answer: little or no rainfall

Explanation: Precipitation, sunlight, and temperature are all abiotic factors.

Deserts have a lack of rainfall.

Some deserts are hot, some deserts can be cold too.

Abiotic factors are  extreme temperatures of the day and night  the fast winds  the strong amount of sunlight  scarcity of water

Rebekah finds that a solution of sugar in water has a volume of 1. 32 fl. Oz. How should she report this amount using the metric system? (1 fl. Oz. = 29. 6 mL) 0. 403 m 1. 40 qt 37. 5 g 39. 1 mL.

Answers

Rebekah reports the volume of sugar solution using metric system as 39.1 mL. Thus, option D is correct.

The metric system has been the measurement system introduced in 1790s. The system has mediated the units for the measurement of volume, mass, length.

The volume has been the space that has been occupied by matter. The volume can be denoted with SI unit L. However, the another accepted unit for volume has been mL.

Thus, the volume of sugar solution has been reported in mL.

The given sugar solution has volume of 1.32 fl. Oz

The volume in mL can be given as:

[tex]\rm 1\;fl\;Oz=29.6\;mL\\1.32\;fl\;Oz=1.32\;\times\;29.6\;mL\\1.32\;fl\;Oz=39.1\;mL[/tex]

The volume of the sugar solution reported by Rebekah on the metric scale has been 39.1 mL. Thus, option D is correct.

For more information about the metric system, refer to the link:

https://brainly.com/question/25011390

40 PIONTS!! PLZZZZ HELP

Determine whether each of the following will undergo dissociation,
dissolving or ionization. Then write the solvation equation for each
substance:
a) Lithium oxide

b) Magnesium nitride

c) Hydrobromic acid

Answers

Lithium oxide is able to undergo both the processes of dissolution and dissociation.

Dissociation refers to the break down a chemical substance into its constituents. Ionization refers to the loss of electrons from a chemical specie while dissolving refers to the ability of a solid to form a solution.

Let us now look at each of the following species;

Lithium oxide undergoes dissolution and dissociation. Magnesium nitride undergoes dissolution and dissociation.Hydrobromic acid  undergoes dissolution and dissociation.

Learn more about ionization: https://brainly.com/question/1602374

Nivel de energia maximo de 20Ca

Answers

Por favor provide más información

molecules diffusing with the concentration gradient through a protein channel is

Answers

Answer:

Molecules move up the concentration gradient in facilitated diffusion which requires ATP to be used as molecules naturally move from high to low concentration

Explanation:

5.27x10^45 molecules of h20 is how many moles

Answers

Answer:

6.02 × 10^23 molecules = 1 mole

5.27 × 10^45 molecules = x

x = 5.27 × 10^45/ 6.02 × 10^23 × 1

= 8.754 × 10^21 mol

I don't know if it's correct but based on the question that was the only way I saw how to work it out

Which sentence best describes what happens during a change of state from a solid to a liquid?

A. The temperature stays the same and the particle speed increases

B. The temperature increases and the particle speed stays constant.

C. The temperature decreases and the particle speed decreases.

D. The temperature stays the same and the particle speed stays constant.​

Answers

Answer:

The temperature stays the same and the particle speed stays constant

A group of scientists are studying observable matter in a cluster of galaxies. They conclude that the cluster has only a small percentage of the mass required to keep it from
flying apart. Why does the duster remain intact?

Answers

Answer:

it is because of Dark Matter

Dark Matter, component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 30.1 percent of the matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent).

Dark matter is composed of particles that do not absorb, reflect, or emit light, so they cannot be detected by observing electromagnetic radiation. Dark matter is material that cannot be seen directly.

Explanation:

Hope It helps

Have A Nice Day : )

A group of scientists is studying observable matter in a cluster of galaxies. The duster remains intact due to the gravitational pull.

What is a galaxy?

A galaxy is a collection of stars, stellar remains, interstellar gas, dust, and dark matter that are gravitationally bonded together.

Dark matter is a component of the universe whose gravitational pull can be detected rather than its luminosity. The universe's matter-energy ratio is made up of 30.1 percent dark matter, 69.4 percent dark energy, and “regular” visible matter (0.5 percent).

Since dark matter is made up of particles that do not absorb, reflect, or emit light, it is impossible to identify it through electromagnetic radiation observation. Dark matter is a substance that cannot be directly observed.

Therefore, a team of researchers is examining the material that can be seen in a clump of galaxies. Due to the gravitational force, the duster is unharmed.

To learn more about duster, refer to the link:

https://brainly.com/question/24544674

#SPJ2

What was the first person who invented a light bulb

Answers

Answer:

Thomas edison would be you're asnwer

Answer: The person who invented the light bulb was Thomas Edison

Explanation:

Give one use of magnesium chloride

Answers

Answer:

Magnesium Chloride is used as a precursor magnesium metals.

Explanation:

2. Transfer in energy to reach the highest amount of kinetic energy for both substance B and C.

3. Slowly transfer out energy from each substance. Note the temperature at which each substance changes phase.

​Substance B changed to a liquid at
ANSWER: °C.
Substance C changed to a liquid at
ANSWER: °C.
For Science please answer the questions with the word "ANSWER"

4. Based on your observations above, which substance needed a greater decrease in kinetic energy in order to change phase?
The substance with
(medium or low) ANSWER: Pick which one it is!
attraction needed more energy transferred out in order to change phase.

Answers

The change in phase of a substance is called a physical change. The substance C with low molecular attraction needs more energy transferred out and thus its kinetic energy have to be decreased to change from gas to liquid.

What is energy transfer?

Energy can neither be created nor be destroyed. However it can be transferred from one form to the other and thus total energy of a system is conserved.

In gaseous state molecules or atoms are far apart and have minimum intermolecular forces of attraction whereas in liquid state they have medium molecular attraction and are a bit close than they are in gas state.

When a substance changes from gas state to liquid state its molecules condenses and becomes more close to each other forming higher molecular attraction.

The gas B have medium molecular attraction and thus will easily liquified with minimum energy transfer whereas, gas C is of less molecular attraction having higher kinetic energy and thus more have to transfer more energy out to liquify.

To find more about physical changes, refer the link below:

https://brainly.com/question/17931044

#SPJ5

Other Questions
Basilio, a cocaine addict, sustained severe and irreversible brain damage because of an accidental overdose of drugs. After spending weeks in the hospital, he did not show any signs of improvement. His wife and children then decided to request the hospital authorities to remove his life-support system in order to allow Basilio to die. In this scenario, the withholding of the life-support system is an example of _____ euthanasia. Cht x c nhiu trong thc phm no? why are virus considered to be nonliving Can someone help me with this question pls Coke and Pepsi are examples of ifteen accounting majors had an average grade of 90 on a finance exam. Seven marketing majors averaged 85, while ten finance majors averaged 93 on the same exam. What is the weighted mean for the 32 students taking the exam? A. 89.84 B. 89.33 C. 89.48 D. Impossible to determine without more information Multi-part question If a galaxy moving away from the Earth has a speed of 1000 km/s and emits 656 nm light characteristic of hydrogen (the most common element in the universe). What wavelength would we observe on the Earth COULD SOMEONE PLEASE HELP ME (PICTURE) ITS URGENT MARKING BRAINLIEST 15 POINTS List any 10 kpop songs name...No jpt message!!!! hii pls help me to balance the equation and state the symbols thankss Two children (each having a mass of 60 kg) are standing on the edge a merry-go-round (mass of 140 kg) as it spins with an angular velocity of 0.75 rad/s. The two children jump off the merry-go-round. What is the angular velocity of the merry-go-round after the children have jumped off how to graph quadratic relationship for h(x)=(x-1)^2-9 What tye of society do you prefer to live in? give any 4 reason write a essay on the road ahead after the pandamic gets over (200 words). a im A c gc nhp x lc 12gi vo ngy 22/6 l 5828'. Hy xc nh v a l ca A. Which of the following oxides is amphoteric oxide?A)Na2O B)Al2O3 C)MgOD)SO2 Why is oiling done time and again in a sewing machine? "Idaho Mining, Inc. borrows at prime plus 1.5% on its line of credit. The line requires a 15% compensating balance. If the prime rate is 9% and Idaho Mining plans on borrowing for a period of one year, what is the nominal APR of the line of credit?" Max is a college student who spent more time partying than studying. As a result, he has failed his latest semester of courses. It will now take him longer to graduate because he will have to repeat the courses that he failed. He wants to improve his grades, but he is completely unmotivated. This is an example of what kind of obstacle Who stops Tybalt from attacking Romeo at the feast in Romeo and Juliet?A. The Nurse B. BenvolioC. Capulet D. Juliet