How many grams are in 2.75 moles of Calcium

Answers

Answer 1

Answer:

110.21 g/mol

............................

Answer 2

Answer:

110.22 g in 2.75 moles of calcium

Explanation:

to convert moles to grams

moles (g/mol)

2.75 mol Ca (40.08 (atomic weight) g Ca/1 mol Ca)= 110.22


Related Questions

Could you do both a and b

Answers

Answer: a. atominc number= protons= 33

neutrons= mass- atominc number

80-33= 47 neutrons

b.35 protons

46 neutrons

hope this helps

Different elements have different numbers of:
Subatomic particles.
Protons.
Electrons.
All of the above.​

Answers

I think it’s all of the above

Why are forecasters able to make more accurate predictions about the weather when using electronic tools?
O A wide variety of devices can be used to collect weather data from many places
O Weather data come exclusively from different weather stations in one region.
Data fed into a supercomputer accounts only for select processes that occur on Earth.
Scientists must input several pieces of weather information into a computer system.

Answers

Answer:

option 1

Explanation:

Forecasters, able to make more accurate predictions about the weather when using electronic tools because a wide variety of devices can be used to collect weather data from many places. Therefore, option A is correct.

What is forecaster ?

Forecaster behavior is examined by forecasters to see how social, cultural, ethical, and environmental trends will likely impact it. They can determine what goods and services people will be wanting to purchase through this approach.

A person who informs you about the anticipated state of a situation: an analyst of the economy. a forecaster of weather. The term "meteorologist" has now become widely used to refer to someone who forecasts the weather and investigates objects that fall from the sky.

Fitzroy developed charts to allow forecasts to be made, which he called "forecasting the weather," and therefore created the word "weather forecast," after a storm in October 1859 that resulted in the loss of the Royal Charter.

Thus, option A is correct.

To learn more about forecaster, follow the link;

https://brainly.com/question/882902

#SPJ6

Provided is a diagram showing forces on a box.
Left
Right
40 Newtons
35 Newtons
What is the net force on the box?
SN Leht
O5N Right
75 N Let
O 75 N Right

please hurry i’m taking a test

Answers

Answer:

5 N left

Explanation:

trust me cccuuhh

You are conducting an experiment with two very reactive substances. One will react with oxygen (O) and other substances in the air, and the other will react to metal in a container. What type of environment can you seal them in so they only react with each other?

Answers

Answer:

seal them in a glass container in an atmosphere of argon (Ar) gas

Explanation:

6. Now, revise your definition for waves to include energy and matter.

A wave is a phenomenon that...

Answers

Answer:

A wave is phenomenon that transfers energy from one point to another through a disturbance without affecting the matter.

Explanation:

A wave is phenomenon that transfers energy from one point to another through a disturbance without affecting the matter.

There are two main types of waves Longitudinal waves travels parallel to their source. For example, sound waves. Through a series of rarefactions and compressions, longitudinal waves are propagated. Transverse waves travel perpendicular to their source.

1. 4.5 cm = __________ Km
2. 34⁰C = __________ Kelvin
3. 195kg = __________ lb
7. 108⁰F =__________ ⁰C
8. 63.2 m =__________ mm
if you can solve this for me I'd gladly appreciate it

Answers

Answer:

1. 0.000045km

2. 307.15 Kelvin

3. 429.9014lb

7. 42.22222 celcius

8. 63200 mm

What accounts for the attractions in a chemical bond?

Answers

Answer:

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.

Explanation:

Your science teacher removed the gas from a birthday balloon. They discovered that the gas is made of the element helium. Inside that atom is:
A. A new substance
B. Protons, neutrons and electrons
C. A different element
D. All of the above

Answers

D is the answer I think
The answer would be “B” because a substance and element represent a structure larger than a single atom. Please mark as Brainliest answer!

Which describes the elements in a given group of the periodic table?

They decrease in atomic mass as you go down the column.
They increase sequentially in atomic number from top to bottom.
They are in the same family, with similar characteristics.
Their properties change according to a pattern as you go down the column.

Answers

Answer:

They are in the same family, with similar characteristics.

Explanation:

The elements in a given group of the periodic table are in the same family and with similar characteristics.

Vertical columns on the periodic table are referred to as a group or family. Elements having the same number of electrons in the outermost shell of their atoms are placed one another in vertical columns. Each resulting vertical column is a group or family. Elements in the same group exhibit similar chemical properties because of the same number of electrons in their atoms' valence shells.

I need help again LOL.

Answers

Answer:

They require diffrent types of atoms for their makeup I belive is the answer Hope this helps

Explanation: Wow you have a lot a questions XD :D :3

Element: A substance that is made up of only one type of atom. Compound: A substance that is made up of more than one type of atom bonded together. Mixture: A combination of two or more elements or compounds which have not reacted to bond together; each part in the mixture retains its own properties.

i hope this helps

What is the formula for an alkene containing six carbon atoms?
A. C6H10
B. C2H6
C. C6H12
D. C5H12

Answers

Answer:

C

Explanation:

Cyclohexane is a cycloalkane with the molecular formula C₆H₁₂. Cyclohexane is non-polar.


An element, X, has 2 isotopes, X-32 with an abundance of 31.5% and X-35 with an abundance
of 68.5%. What is the average atomic mass of element X?

Answers

Answer:

amu = 34.055 or 34.1

Explanation:

to calculate the average mass, first convert the percentages into decimals. Then, calculate the mass numbers. To get this number, multiply the decimal by the mass number for each isotope and, then add them together.

( 0.315 x 32 ) + (0.685 x 35 ) = 34.055

which of the following elements would decrease in size when it became an ion

Answers

Answer:

nickel, cobalt would decrease in size when it became an iron

helppppppppppppp plzzzzzzzz Identify each structure based on its label.

Compound A is a
amine.
Compound B is a
amine.
Compound C is a
amine.
Compound D is
.

Answers

A I hope it helps :)

Answer:

kldja

Explanation:

A.) primary

B.) tertiary

C.) secondary

D.) ammonia

edge2020

does breast cancer occur in women? what are the signs and symptoms ?

actually anatomy & physiology own words pls i need it now

Answers

Answer:

Breast Cancer occurs in a lot of women.

Explanation:

The following are some symptoms of breast cancer in women.

New lump in the breast or underarm (armpit).

Thickening or swelling of part of the breast.

Irritation or dimpling of breast skin.

Redness or flaky skin in the nipple area or the breast.

Pulling in of the nipple or pain in the nipple area.

Nipple discharge other than breast milk, including blood.

Another thing is that women each year after age 40 are encouraged to get a mamogram.

Answer:

yes breast cancer can occur in both men and women.

Explanation:

some warning signs can be feeling a new lump on or around the breast or in the arm pit area, swollen or redness, also discharge from the nipple can be a sign of breast cancer. Breast pain that doesn't go away can be a sign of breast cancer.

hope this helps some. have a great night!

Which of the samples pictured is most likely a nonmetal?

A moderately shiny grey mineral.

A very shiny silvery mineral.

A crystalline yellow mineral.

A very shiny golden mineral with many small crystals.

Answers

Answer:

i think it is C

Explanation:

sorry if wrong

GIVING 5 STARS AND BRAINLY IF YOU ANSWER FIRST AND CORRECTLY
Please answer asap. Thank you.

QUESTION:

How many total elements are involved in the process of photosynthesis?

A. 2
B. 3
C. 4
D. 5

Answers

3 there are three different chemical symbols on each side of the equation

Using the reaction below: 2 CO2(g) + 2 H2O(l) → C2H4(g) + 3 O2(g) ΔHrxn= +1411.1 kJ What would be the heat of reaction for this reaction? 0.5 C2H4(g) + 1.5 O2(g) → CO2(g) + H2O(l) ΔHrxn= ??? KJ Question 6 options: a) Not enough information is given b) -2822.2 kJ c) +1411.1 kJ d) -705.55 kJ e) -1411.1 kJ

Answers

Answer:  d) -705.55 kJ

Explanation:

Heat of reaction is the change of enthalpy during a chemical reaction with all substances in their standard states.

[tex]2CO_2(g)+2H_2O(l)\rightarrow C_2H_4(g)+3O_2(g)[/tex] [tex]\Delta H=+1411.1kJ[/tex]

Reversing the reaction, changes the sign of [tex]\Delta H[/tex]

[tex]C_2H_4(g)+3O_2(g)\rightarrow 2CO_2(g)+2H_2O(l)[/tex]

[tex]\Delta H=-1411.1kJ[/tex]

On multiplying the reaction by [tex]\frac{1}{2}[/tex] , enthalpy gets half:

[tex]0.5C_2H_4(g)+1.5O_2(g)\rightarrow CO_2(g)+H_2O(l)[/tex][tex]\Delta H=\frac{1}{2}\times -1411.1kJ=-705.55kJ/mol[/tex]

Thus the enthalpy change for the given reaction is -705.55kJ

Explain what lattice energy is and how it affects the properties of ionic compounds. Describe the general properties of ionic compounds.

Answers

Answer:

The force of attraction between oppositely charged particles is directly proportional to the product of the charges on the two objects (q1 and q2) and inversely proportional to the square of the distance between the objects (r2).

The strength of the bond between the ions of opposite charge in an ionic compound therefore depends on the charges on the ions and the distance between the centers of the ions when they pack to form a crystal.

An estimate of the strength of the bonds in an ionic compound can be obtained by measuring the lattice energy of the compound, which is the energy given off when oppositely charged ions in the gas phase come together to form a solid.

Explanation:

The lattice energies of ionic compounds are relatively large. The lattice energy of NaCl, for example, is 787.3 kJ/mol, which is only slightly less than the energy given off when natural gas burns.

The bond between ions of opposite charge is strongest when the ions are small.

The ionic bond should also become stronger as the charge on the ions becomes larger.

Answer:

The force of attraction between oppositely charged particles is directly proportional to the product of the charges on the two objects (q1 and q2) and inversely proportional to the square of the distance between the objects (r2). The strength of the bond between the ions of the opposite charge in an ionic compound therefore depends on the charges on the ions and the distance between the centers of the ions when they pack to form a crystal. An estimate of the strength of the bonds in an ionic compound can be obtained by measuring the lattice energy of the compound, which is the energy given off when oppositely charged ions in the gas phase come together to form a solid.

Explanation:

Got it right on edge 2020

Which two substances are among the four major types of organic compounds made by living things?
A. Lipids
B. Carbon dioxide
C. Water
D. Nucleic acids​

Answers

Answer:

I think carbon.

Explanation:

............

i think its carbon don’t make my words

Which of the following best describes hair? O Hair is made of mostly tightly packed living cells Hair does not help control body temperature. O Hair growth occurs in the hair follicle O Hair grows at 2.5mm a month.​

Answers

Answer:

(A) Hair is made of mostly tightly packed living cells.

Explanation:

i just took the exam :) yw

a like would be nice thanks!

Answer:

A

Explanation:

Just did the exam :) Good Luck!

When thermal energy is removed from a system, what happens to the
temperature and the average kinetic energy of the system?
Temperature decreases, average kinetic energy increases
Temperature decreases, average kinetic energy decreases
Temperature increases, average kinetic energy increases
Temperature increases, average kinetic energy decreases

Answers

Answer:

When the average kinetic energy of the molecules goes up (a rise in temperature), the average speed of the molecules increases. And lower average kinetic energy of the molecules means they have lower speed. ... When heat (energy) goes into a substance one of two things can happen

Explanation:

hope this helpss!!!

How does a heat affect the chemical reaction? ​

Answers

Answer:

Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.

Explanation:

What the first one said

Solid substance A has a melting point of 100°C. Liquid substance B has a freezing point of 110°C. For each substance, identify its state of matter and describe the motion of its particles when the substance is at 115°C.

Answers

Answer:

both will be at liquid state. the particles will move rapidly in all directions and will collide with other particles in random motion

Name for each compoud
1.CO
2.H2SO4
3CaCO3
4 H202
5NaF

Answers

1. Carbon monoxide
2. Sulfuric acid
3. Calcium carbonate
4. Hydrogen peroxide
5. Sodium fluoride
hope this helps (:

Why do most metals exist in nature as minerals rather than as pure metallic elements?

Answers

Because most metals are susceptible to oxidation, having low electronegativities, prefering to be in a cationic form vs. ... Only metals such as gold, which is resistant to oxidation, will be found pure in nature.

The volume of a candy bar is 55cm^3. The mass of the candy bar is 70g. What is the density of the candy bar in g/cm^3

Answers

Answer:

1.3 g/cm3

Explanation:

What is metamorphosis in the life cycle of a frog?

Answers

Answer:

Metamorphosis is the change in shape of a frog.

Explanation:

For example, it's like when the tadpole develops legs. That tadpole is going through metamorphosis to grow those legs.

Question: Give the name for
the following compounds
1. MgF2
2. C2H6
3. Fe203

Answers

1. Magnesium Fluoride
2. Ethane
3. Iron (3) oxide
Other Questions
During which era did the publication of The Federalist Papers take place? A. Colonial Era B. Constitutional Era C. Era of Good Feelings D. Era of ExplorationPLEASE HELP ASAP FOR BRAINLIEST What is meant by the phrase Keeping up with the Joneses? aThis phrase refers to the human behavior of wanting to spend more because we see others around us spending more and enjoying goods and services that we think we would enjoy as well. bThis phrase refers to the concept of saving up for only your needs in your budget, not your wants. cThis phrase refers to the annual event in August where investors compete with each other to see who can beat the market. dThis phrase refers to the newest reality television show that demonstrates the effect of saving early and often. write an inequality for the following statement : c is less than 1 4/5 to a decimal show work2/3 to a decimal show work :::::::::::::::::::bdisbsidvwish Lines E, F, and G are parallel lines cut by transversal H as shown below. What is the value ofa+b+c+d? Tatianna withdrew $20 from her bank account 3 times.how much did her account change? write your answer as an integer. What is the primary use of the sugars that the algae produce? Calculate the median of the following set of numbers. 19, 22, 75, 37, 37, 27, 32, 15, 10 Multiply. Write your answer as a fraction in simplest form. 2/3 x 6/5 Can you help me to solve this GIVING BRAINLIEST, THANKS AND FIVE STARS TO CORRECT ANSWER, PLZ AND THANK YOUUU :)Why were the clothes of the colonist sturdy?They shared the clothes with others.They didn't have stores close by home.They were poor and couldn't buy more.They needed the clothes for a long time. Are good intentions more important than written laws? What is technology? Reggie suddenly decided to drive to the Grand Canyon, because he had never seen it. He didn't even have a map showing him how to get there! Reggie made a(n) _____. a. routine decision b. impulse decision c. daily decision d. regular decision Please select the best answer from the choices provided A B C D what did michelangelo do when hired by the church to paint sistine chapel PLEASE I NEED HELP FIND THE X USE THE SCREEN SHOT 2. Who was the first pharaoh of Egypt's first dynasty, that united upper andlower Egypt? How do you do this question? who is the muffin man?