How many atoms are in 1.00 moles of Calcium (Ca)?

Answers

Answer 1

Answer:

One mole is equal to 6.02214179×1023 atoms, or other elementary units such as molecules.

Answer 2

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore number of atoms in 1.00 moles of Calcium (Ca) are 6.022×10²³ atoms.

What is mole?

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. Mole is inversely proportional to molar mass.

Mathematically,

mole =given mass ÷ molar mass

Number of atoms = moles ×6.022×10²³ atoms

Substituting the values in above formula we get

Number of atoms = 1 ×6.022×10²³ atoms

Number of atoms 1 mole of calcium = 6.022×10²³ atoms

Therefore, number of atoms in 1.00 moles of Calcium (Ca) are 6.022×10²³ atoms.

To know more about mole, here:

https://brainly.com/question/15209553

#SPJ2


Related Questions

Methane undergoes combustion. Which products form?


 
CO2, H2O, and O2

 
C and H2O

 
CO2 and H2O

 
CO2 and H​

Answers

When methane undergoes combustion the carbon dioxide (CO₂) and water (H₂O) is formed. Therefore, option C is correct.

What do you mean by combustion ?

A chemical reaction between two or more substances, usually involving oxygen, that produces heat and light in the form of a flame is called as combustion. The reaction is as follows:

CH4(g) + 2O₂(g) → CO₂(g) + 2H₂O

Methane burns in the presence of enough oxygen to produce carbon dioxide (CO₂) and water (H₂O). When it is burned, it produces a large amount of heat, making it an excellent fuel source.

Thus, option C is correct.

To learn more about the combustion, follow the link;

https://brainly.com/question/15117038

#SPJ1

How many grams of solid iron will be produced from 32.1 grams of iron (III) oxide? Hint: Balance the equation first

Answers

Answer:

22.45g of Fe will be produced

Explanation:

The balanced reaction is:

Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g)

Where 1 mole of Iron (III) oxide reacts with 2 moles of Iron

To solve this question we have to find the moles of iron (III) oxide. With these moles and the balanced reaction we can find the moles of iron produced and its mass:

Moles iron (III) oxide -Molar mass: 159.69g/mol-

32.1g Fe₂O₃ * (1mol / 159.69g) = 0.201 moles Fe₂O₃

Moles Iron:

0.201 moles Fe₂O₃ * (2mol Fe / 1mol Fe₂O₃) = 0.402 moles of Fe

Mass Fe -Molar mass: 55.845g/mol-

0.402 moles of Fe * (55.845g/mol) =

22.45g of Fe will be produced

Define what natural gas is, explain how it forms, and
what it is used for today.

Answers

Answer:

is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly including varying amounts of other higher alkanes, and sometimes a small percentage of carbon dioxide, nitrogen, hydrogen sulfide, or helium.

It is formed when layers of decomposing plant and animal matter are exposed to intense heat and pressure under the surface of the Earth over millions of years. The energy that the plants originally obtained from the sun is stored in the form of chemical bonds in the gas

for heating, cooking, and electricity generation. It is also used as a fuel for vehicles and as a chemical feedstock in the manufacture of plastics and other commercially important organic chemicals.

What happens to food we eat?

Answers

Answer:

It goes through our digestive system then though our bladder.

Answer: When we eat the food gets digested.

Explanation: Once filled with food, the stomach grinds and churns the food to break it down into small particles. It then pushes the small particles of food into the first part of the small intestine, called the duodenum. The small intestine is where most of the digestion and absorption of our food takes place.

What will the nervous system feedback do when the human body's temperature drops just below its normal range? Plssss help

Answers

Answer:

Homeostasis

Explanation:

The blood vessels constrict and you start to shiver, that shivering generates heat to warm the body to help to body temperature go back to normal. Homeostasis is the condition of keeping your body at a normal condition.

what are two places that producers can get energy?

Answers

Answer:

The Food Chain: The answer has to do with trophic levels. As you probably know, the organisms at the base of the food chain are photosynthetic; plants on land and phytoplankton (algae) in the oceans. These organisms are called the producers, and they get their energy directly from sunlight and inorganic nutrients.

Explanation:

Brainliest?

What charge would an ion have if it had more electrons than protong?

A. It would be neutral, since electrons would be outside the nucleus.
B. It would have a net positive charge.
C. It would have no charge.
D. It would have a net negative charge.

Answers

Answer:

D. It would have a net negative charge

Explanation:

In an atom, there are electrons, protons and neutrons collectively called SUBATOMIC PARTICLES. The charge of an atom is determined by the number of electrons and protons in that atom. A neutral or uncharged atom possess the same number of electrons and protons.

The charge can thus be calculated as follows:

Charge of atom = no. of protons - no. of electrons.

Hence, when the number of electrons in an atom is higher than that of the protons, it means that the atom has gained negatively charged electrons, making that atom have a net negative charge. For example, In an atom that contains 10 protons and 11 electrons, the charge of that atom will be (10 - 11) = -1. The net charge of that atom will be -1, which is NEGATIVE.

PLEASE HELP ASAP A gardener plants a new kind of plant that will attract more helpful insects to his garden. Suddenly, the gardener notices a significant increase in the number of spider webs in the garden. Why has most likely occurred in this situation?

The carrying capacity of the environment has changed.

The limiting factor for spiders has increased in amount.

The carrying capacity of the environment has not changed.

The limiting factor for spiders has decreased in amount.

Answers

Answer:

The carrying capacity has changed

Explanation:

By adding in the help bugs, the gardener increased the amount of food available for the predators who eat the help bugs, these are the spiders.

The enviroment for spiders now has more food, and can carry more spiders in it.

where does energy come from? newsela

Answers

Answer:

All of our energy comes from the sun.

Explanation:

The sun sends out huge amounts of energy through its rays every day. Without the sun, life on earth would not exist, since our planet would be totally frozen.

A thermite reaction realeses large amounts of heat and light resulting in the melting of the iron metal

Answers

Answer:

1. Fe₂O₃ : Al = 1 : 2

2. Fe₂O₃ : Al₂O₃ = 1 : 1

3. Fe₂O₃ : Fe = 1 : 2

Note: The question is incomplete. The complete question is given below :

A thermite reaction releases large amounts of heat and light, resulting in the melting of the iron metal that forms during the reaction. The balanced chemical equation is given below: Fe₂O₃(s) + 2Al(s) ---> Al₂O₃(s) + 2Fe(l) Determine the correct mole ratios for the following substances, based on this chemical equation.

Explanation:

A thermite reaction is a highly exothermic reaction that occurs between a mixture of powdered aluminium and iron (iii) oxide.

The reaction is a redox reaction which produces aluminium oxide and metallic iron.

The heat given out in the reaction melts the iron formed. It is used to join railway tracks or cracked machine parts. The molten iron runs down between the tracks and welds them together.

The balanced equation of the reaction is given below :

Fe₂O₃(s) + 2Al(s) ---> Al₂O₃(s) + 2Fe(l) + Heat

The mole ratio of the reactant and products are as follows:

1. 1 mole of Iron (iii) oxide and 2 moles of aluminium are combined

Fe₂O₃ : Al = 1 : 2

2. 1 mole of aluminium oxide is produced from 1 mole of iron (iii) oxide

Fe₂O₃ : Al₂O₃ = 1 : 1

3. 2 moles of of iron are produced from 1 mole of iron (iii) oxide

Fe₂O₃ : Fe = 1 : 2

an archer releases an arrow toward a Target the arrow travels 166 m in 2 seconds what is the speed of the arrow​

Answers

the speed of arrow is 83m/per second

that means

83metres = 1 second

The arrow would cover the distance of 83 metres in 1 second

may this helps you

bye

what is molarity ? also write its formula ?​

Answers

Answer:

Definition:

Molarity of a given solution is defined as the total number of moles of solute per litre of solution. The molality of a solution is dependent on the changes in physical properties of the system such as pressure and temperature as unlike mass, the volume of the system changes with the change in physical conditions of the system. Molarity is represented by M, which is termed as molar. One molar is the molarity of a solution where one gram of solute is dissolved in a litre of solution. As we know, in a solution, the solvent and solute blend to form a solution, hence, the total volume of the solution is taken.

Formula :

[tex]m \: = \frac{n}{v} [/tex]

Where,

m = molar concentration

n = moles of solute

v = litres of solution.

which of the following is an example of a synthesis reaction

Answers

Answer: S+O2> SO2

Explanation:

Nate measured an iron bar. He put the iron bar in the hot sun. When he measured the bar after it had been in the sun, it was slightly longer. Which sentence best describes what happened to the iron atoms after the bar was left in the hot sun?
Consider what happens to an iron bar when left out and exposed to sunlight and why it happens.
Evaluate the statements and select the one that best represents what happens.
Provide your reasoning in the text box provided.

The number of atoms increased.
The size of the atoms increased.
The space between each atom increased.
The air in the spaces between the iron atoms expanded.

Answers

Answer:

need dim points back ma boi

Explanation:

A hydrocarbon substituent is called an

Answers

It’s called An alkyl group.
Aliphatic hydrocarbons are divided into three main groups according to the types of bonds they contain: alkanes, alkenes, and alkynes. Alkanes have only single bonds, alkenes contain a carbon-carbon double bond, and alkynes contain a carbon-carbon triple bond.

what gives bases their properties?

Answers

Bases are iconic compounds that produce negative hydroxide ions (OH-) when dissolved in water. Bases taste bitter, feel slippery, and conduct electricity when dissolved in water.... Bases turn red litmus paper blue. The strength of bases is measured on the pH scale.

Which organisms are consumers?

Select all correct answers.

mushrooms
monkey
grasshopper
bacteria
snake

Answers

Answer: snake grass hopper and monkey

Explanation: i took the test and this is what i got

Answer:

snake grasshopper and monkey

Explanation:

When glucose is fermented, ethanol is formed together with ………………….

Answers

Answer:

carbon dioxide and oxygen

A teacher reacts 84.0 g of sodium bicarbonate with excess hydrochloric acid. What is the percent yield for sodium chloride if 56.0 g of sodium chloride is produced?
4.20%
8.01%
92.0%
95.8%​

Answers

95.8% is the percent yield for sodium chloride if 56.0 g of sodium chloride is produced in the reaction.

How we calculate the percentage yield?

Percentage yield of any chemical reaction can be calculated as:

% yield = (Experimental yield/Theoretical yield) × 100

Given chemical reaction is:

NaHCO₃ + HCl → NaCl + CO₂ + H₂O

In the question it is given that 56 grams of NaCl is produced by mass. But according to the stoichiometry of the reaction 1 mole of NaCl will be produced whose mass should be 58.44 grams. So, % yield will be:

% yield = (56/58.44) × 100 = 95.8%

Hence, option (d) is correct it means 95.8% is the percent yield.

To know more about percent yield, visit the below link:

https://brainly.com/question/8638404

8. A transform boundary, where one tectonic plate slides past another, is likely to result in
which of the following?
A. Frequent earthquakes
B. Rift valley formations
C. Intense weathering
D. Mountain building
9. A rising hot air balloon is acted on by a force pulling it upward and by the force of gravity
Nonton's law of inertia what will happen to the balloon

Answers

Answer:      A. Frequent earthquakes

Explanation:

i need help in this can someone help

Answers

Answer:

the limiting reagent is butane

Explanation:

5C₄H₁₀ + 25O₂ → 20CO₂ + 5H₂0

How can sound waves be used to put out fire

Answers

The acoustic extinguisher works by using sound waves—a type of pressure wave—to push oxygen away from the source of a flame and spread it over a larger surface area. These actions break the fire combustion triangle made up of heat, fuel, and oxygen, the three elements required for a fire to burn.

Which salt is most soluble at 90C?

Answers

Explanation:

sodium nitrate is most soluble at 90C.

Solubility is the ability to get dissolved. The salt of sodium is the most soluble salt at 90 degrees.

What is solubility?

Solubility is the compound's or substance's ability to get dissolved in the solvent for the formation of the solution. It depends on several factors like hydration energy, temperature, pressure, and lattice energy.

The size of sodium is small, it has less lattice energy compared to the hydration energy and can get readily dissolved as it can create a sphere around other ions to form the solution.

Therefore, sodium salt is the most soluble at 90 degrees celsius.

Learn more about solubility here:

https://brainly.com/question/15596863

#SPJ2

The characteristics of two unknown intermolecular forces, X and Y, are compared in the table.
Intermolecular Forces
х
Y
Occurs between molecules with instantaneous dipoles Occurs between molecules with permanent dipoles and ions
Which of the following conclusions about the two intermolecular forces is correct?
X represents London dispersion forces, and Y represents ion-dipole forces.
X represents dipole-dipole forces, and Y represents ion-dipole forces.
X represents hydrogen bonding, and Y represents dipole-dipole forces.
X represents London dispersion forces, and Y represents dipole-dipole forces.

Answers

Answer:

X represents London dispersion forces, and Y represents ion-dipole forces.

Explanation:

London forces occurs between molecules that are normally non-polar (electrically symmetric). It arises from instantaneous dipoles in molecules. It occurs in all substances.

Permanent dipoles are caused by non-symmetric electron distribution in molecules leading to a permanent dipole in the molecule such as in HCl. Interaction between the permanent dipole in these molecules and an ion is called ion-dipole interaction.

Hence; X represents London dispersion forces, and Y represents ion-dipole forces.

X represents London dispersion forces, and Y represents ion-dipole forces.

London forces:

London forces occurs between molecules that are normally non-polar (electrically symmetric). It arises from instantaneous dipoles in molecules. It occurs in all substances.For example: F₂, I₂

Ion-dipole forces:

Permanent dipoles are caused by non-symmetric electron distribution in molecules leading to a permanent dipole in the molecule such as in HCl. Interaction between the permanent dipole in these molecules and an ion is called ion-dipole interaction.For example: sodium ion [tex](Na^+)[/tex]and water molecule[tex](H_2O)[/tex]

Hence; X represents London dispersion forces,

and Y represents ion-dipole forces.

Learn more:

brainly.com/question/22602228

When a substance was dissolved in water, the temperature of the water increased. This process is described as
A.
endothermic with the release of energy
B.
endothermic with the absorption of energy
C.
exothermic with the release of energy
D
exothermic with the absorption of energy

Answers

The correct answer will be A

Answer: a,

endothermic with the release of energy

Haley has been having difficulty breathing. She is having difficulty with the gas exchange in the respiratory system. Which organ is being affected?

Answers

Answer:

Lungs.

Explanation:

This is because the lungs are respiratory organs in the body that are located at the either side of the thorax or chest. These are organs that are incharge of exchange of gases. The air is breathe in through the trachea i.e oxygen is inhaled and carbondioxide which is the waste product is exhaled. Gas exchange take place in the lungs.

Which of these statements is true of plant cells?
O They are prokaryotic.
O They have no cell membranes.
They can make their own nutrients.
O They work independently of one another.

Answers

C. They can make their own nutrients
The answer would be C

A flash contains 85.6g of C7H5NO3S (Saccharine) in 2.00 litre of a solution. What is the molarity?

Answers

Answer:

0.234 M

Explanation:

C- 12.009 x 7

H- 1.001 x 5

N- 14.006

O- 16 x 3

S- 32.059

___________+

183.133 g/mol

[tex]\frac{1mol}{183.133g} *\frac{85.6g}{2.00L}[/tex]  = 0.234 M Cancel out the grams mol/L equals molarity. Lowest significant figure is 3

PLEASE HELP SOMEONE PLEASEEEE

Answers

Answer:

the answer is b

hope this helps you!!

Have a lovely day!

-millie :D

What is a peer review? *
A. A summary of results from several different experiments
B. A presentation of scientific ideas
C. group of scientists that analyze scientific experiments
D. The errors in an experiment

Answers

Answer: Hewo, there! your Answer is Below

C. group of scientists that analyze scientific experiments

Explanation:

the process of someone reading, checking, and giving his or her opinion about something that has been written by another scientist or expert working in the same subject area, or a piece of work in which this is done: All these papers have been published after being subjected to peer review.

Hope this Helps you !!!

Have a great day!!!

I think the answer is B
Other Questions
What is the equation for this table? The marketing manager at Home Depot works with Hunt Advertising to coordinate all promotional messages for a product or a service. For example, to sell the new line of lighting fixtures, the marketing manager and Hunt Advertising make sure that all messages are consistent at every contact point at which Home Depot interacts with the consumer. This is an example of _______. help please need asap Find the area of the semicircle. Round to the nearest hundredth if necessary. how many 7.50 is there in 217.5? A(n)\ is a system composed of living organisms and their interaction with the surrounding environment, where the main focus is the interaction and relationship between species . 1.habitat 2.biome 3.environemnt 4.ecosystem Lee la conversacin entre Isaac y Alma.ISAAC: Recuerdas al abuelo, Alma?ALMA: Claro. Era increble ver cmo [BLANK] andar sin bastn con sus 90 aos.ISAAC: El yoga lo mantena joven.Qu palabra completa la conversacin correctamente?PodaNo podaNo pudoPudo PLEASE HELP !! ILL GIVE BRAINLIEST !! a chemist is researching different sustainable fuel sources help me this story is mango street ! please someone be kind enough to help me AspectosVivimos enun mundo decambioEl mundo esun lugar pararealizarnosEl desarrollodebe serautntico eintegralUna ecologaintegralPositivosNegativosEducacin Religiosa - Secundaria Please choose word that fits best fitsPollo, etc.bebidaspostrescenadesayunoctiveaperitivopastaverdurasfrutascarnesmariscos Which describes the greenhouse effect? 1. Earth continues to get warmer over time because it is slowly moving closer to the sun. 2. Earth's atmosphere blocks the sun's ultraviolet light. 3. Pollution gets into the air, causing trees to not get enough oxygen. 4. Energy given off by earth is reflected off of earth's atmosphere back down to the surface. Approximately how many formula units of NaCl are in 116.88g of table salt (NaCl), knowing that the molar mass of NaCl is 58.44g/mol? Trail of Tears of Tears TestPlease Use This To Answer My Questions :D What two details support the idea that a bird's wing can be used as a defense weapon? A The bird has a shoulder, elbow and wrist, like us." B One would not think that the feathers could have so much power; but when the wing is extended, the quills of the feathers are hooked with small hooks ..." C A large bird can give a severe blow with its wing, and when pigeons fight, they are said to hold one wing to protect themselves while hitting the enemy with the other. " D Woodcocks whistle with their wings as they fly, and mourning doves whisper softly." E Ruffed grouse produce a drum roll effect with theirs, and others make theirs sound like castanets." If C = 18 inches, what is the area? Answer choices:164.35 in^2254.34 in^2268.26 in^232 2.84 in^2 The equation of a circle is x2 + y2 - 12y + 20 = 0What are the coordinates of the center and the length of the radius of the circle? if a translation has a coordinate notation of (x,y) --> (x+1,y-3) then what is the image of (4,-4) A coffee blender mixes two types of coffee. Type A costs $13 per kg and type B costs$18 per kg. How many grams of each type of coffee should be blended so that 1 kg costs $15?