2. How many formula units in 7.25 moles of Al2O3​

Answers

Answer 1

Answer:

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Explanation:


Related Questions

The following flow diagram shows the various steps of elimination of waste through urine. There is an error in one of the steps. (5 points)



What is the error in the diagram?
Step 2 should be the ureters carry urine to the urethra.
Step 2 should be the kidneys carry urine to the bladder.
Step 3 should be urine leaves the body through kidneys.
Step 1 should be urine flows from the kidneys to the ureters.

Answers

Answer:

The answer is A: step one should be urine flows from the kidneys to the ureters.

Explanation:

I did the test and got it right :)

Answer:

A is your answer

Explanation:

In 2011, fires in Bastrop County, Texas were the most damaging wildfires in Texas history. The fire spread through the pine trees and scorched nearly 5,700 acres of Bastrop State Park. The majority of the Houston toad’s habitat was lost, and the Lost Pines Forest was greatly affected. As ecological succession began, which of these most likely appeared in the Bastrop forest area first?
A.Shrubs and trees
B. Newly developed topsoil
C.Weeds and grasses
D.Lichens on fallen trees

Answers

C . Weed and grasses

Explanation : because it grew over time

The most likely appeared in the Bastrop forest area first is to be considered as the C.Weeds and grasses.

What is ecology?

It is the study that represents the relationships between a living organism that involved the human, and the physical environment.

It is at the individual, population, community, ecosystem, etc.

Hence, the option c is correct.

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IF RIGHT I WILL GIVE BRAINLIEST
Which of the following types of soil would have the highest porosity?
A. 50% sand, 50 % clay
B. 80% sand, 20% silt
C. 40% clay, 60% silt
D. 80% clay, 20% sand

Answers

Answer:

80% clay 20% sand

Hope this helped <3

Answer:

B

Explanation:

Sand is much more bigger than clay meaning there are gaps between each grain of sand making it easier for water to flow into it.

How many atoms of tin are found in 3.50 moles of tin?

Answers

Answer:

2.11x10²⁴ atoms

When are atoms considered to be stable?

Answers

Answer:

Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons.

The genotype RR would be considered a purebred and the genotype Rr would be considered a hybrid. *

True or False

Answers

Answer:

true

Explanation:

HELPP ME ASAP
What is the percent composition of Nitrogen in dinitrogen trioxide?

Answers

28% is the answer i got

Which detail supports the main idea Bats are useful to humans?
Bats often live in large colonies in caves and under bridges.
Bats are the only mammal that truly flies.
Bats eat hundreds of mosquitoes and other annoying insects at night.
Some bats carry rabies, a deadly virus.

Answers

Answer:

Bats eat hundreds of mosquitoes and other annoying insects at night.

Lightning storms trigger wildfires that burn up a lot of the plants and grasses in the ecosystem. Trees are mostly spared. what is the cause of this

Answers

Answer:

B

Explanation:

:)

I’m not sure what you mean but are you talking about lightning? If so it can strike and cause fires.

What is the formula for tricarbon heptafluoride?
C2F3
CF7
C3F7
C773

Answers

Answer:

C3F7

'Tri' means 3

Tricarbon means 3 carbon

"Hepta" means 7

Fluoridez molecular formula is "F"

hence F7

PLS HELPPPPP ASAP
How many grams of Oxygen are in 7.2 grams of C12H22011? Round your answer to the hundredth place (0.01)

Answers

Here I hope this helps

Select the correct answer.

This chemical equation is not balanced:
AgBr(s) → Ag(s) + Br2(g).

Why isn’t it possible for the reaction to occur as indicated by the unbalanced equation?

A.
There are more substances on the right side of the equation than on the left side.
B.
There is a gas on the right side of the equation but not on the left side.
C.
The bromine atoms must go through a liquid state before becoming a gas.
D.
There is more mass represented on the right side of the equation than on the left side.
E.
The bromine atoms on the right side of the equation are not bonded to another element.

Answers

The answer should be a
the answer is b i just had this question on a test

$4000 principal earning 6% compounded annually. what will the balance be after 6 years

Answers

Answer:

Compound Interest is calculated on the initial Principal for a given unit of time(yearly, half-yearly, quarterly), it also includes all of the accumulated interests of the previous period of a loan or deposit.

In this type of interest, the amount after the first unit time becomes the principal for the second unit and the amount after second unit time becomes the principal for the third unit and so on.

So the difference between the final amount and the principal is called Compound interest.

If the interest is compounded yearly:-

A=P(1+R100)n

Here A = final Amount

P = Principal

R = interest rate

n = time period

Compound interest = Final amount - principal

Given:-

Principal (P) = $4000

Interest Rate (R) = 6%

Time period (n) = 5 years

What is the Molar Mass of Iron(Fe)? and also state how many particles there are in one mole of iron. will give brainliest to first answer

Answers

the molar mass of iron is 55.845 u

Which of the following organisms is the most complex?

A. Paramecium
B. Amoeba
C. Volvox
D. Euglena

Answers

Answer:  C. Volvox sorry if i got it wrong

Explanation:

Analysis determined a compound contained 92.25% carbon and 7.75% Hydrogen. Determine the
empirical formula for this compound

Answers

Answer:

Styrene has the empirical formula CH, and there is 92.25% carbon and 7.75% hydrogen. The percentage of these parts can be used to determine the molar mass and use the molecular formula.

Explanation:

Which statement correctly describes acetyl-CoA?
It connects glycolysis to the citric acid cycle.
It connects the citric acid cycle to the electron transport chain.
It is the product of catabolism of proteins.
It is the product of catabolism of fats.

Answers

A. It connects glycolysis to the citric acid cycle.

Explanation: Right on edge

The photo shows a person holding a frozen smoothie. Which statement best explains why the smoothie is melting?

Answers

Answer:

c

Explanation:

the temperature of the person's hand is hight than the temperature of the smoothie

Answer:

c

Explanation:

the temperature of the person's hand is hight than the temperature of the smoothie

What is the symbol of element Californium?

Answers

Answer:

Californium is a chemical element which is radioactive, its symbol is 'Cf' and atomic number is 98

Answer: the elementale symble is Cf

Explanation: the symble of element is Cf

What do atoms consist of?

Answers

Answer:

protons, neutrons, electrons

Answer:

Atoms consist of 3 particals:Protons,Neutrons,and Electrons

A cell wall is the ________.
A
thin, soft membrane that surrounds the nucleus of each cell

B
collection of cytoplasm in each cell

C
rigid structure that surrounds the cell membrane of plant cells and most bacteria

D
sheets of cells that cover the lining of the stomach

Answers

C. Rigid structure that surrounds the cell membrane of plant cells and most bacteria.
I believe it’s c have a nice day

12. When can a theory be revised?

if the general public does not understand the theory

when a new scientist begins working on it

after 10 years

if new knowledge expands and corrects our understanding

Answers

Answer:

if new knowledge expands and corrects our understanding

Explanation:

However, science is always changing. As new evidence is uncovered, a theory may be revised or replaced by a more useful explanation.

Kaitlyn said that the metal sodium Na and the non metal neon Ne form the ionic compound NaNe. Using what you know about groups and valence electrons, explain why you support or do not support kaitlyns statement

Answers

Based on what I know about groups and valence electrons I support kaitlyn’s statement due to the fact that an ionic bond is a bond between a metal and nonmetal.

There are two types of chemical compound one is covalent compound and another is ionic compound in chemistry. In ionic bonds, electrons are completely transferred. Therefore, Kaitlyn statement is incorrect.

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

Ionic bond is formed by cation and anion. Na is a metals and act as cation as Na⁺. Neon is a non metal but it can not gain or loose electrons as its outermost shell is fully filled. Neon is a noble gas which is unreactive. So, Kaitlyn statement is not correct. . Ionic bonds are stronger than covalent bonds. The melting and boiling points are higher in ionic compounds.

Therefore, Kaitlyn statement is incorrect.

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What volume (in L) of carbon dioxide will be produced from the reaction of 37.4 L of oxygen?​

Answers

the volume will be 21.4 L

Answer:

Maybe somewhere close to 12 L?

The transfer of pollen grains from another of a male to the stigma of female flower

Answers

Answer:

pollination is the proces called

In the ocean, there are small fish that live in and around the mouths of large sharks. The shark does not harm the fish because the fish pick food from between the shark’s teeth. In return, the small fish benefit from food the sharks find. Which form of symbiosis exists between the sharks and the small fish?


commensalism


mutualism


parasitism


predation
please help

Answers

i think the answer is mutualism.

because mutualism means that the two species benefit each other.

Answer:

Mutualism

Explanation:

i don’t think i know

Determine the products of the following reaction:
Ca(OH)2 (aq) + 2 CuCl(aq) →
(aq) +
H(s)
:: Caci
:: CaCl2
+ CuOH
:: Cu(OH)2
*: CIOH
:: Cacu

Answers

The answer is a) CaCl2

What is the percent composition by mass of suifur in Na2SO?
(Molar mass of Na2SO.= 142 g/mol)

Answers

Answer:

22.5%

Explanation

% composition = Molar mass of S

------------------------ x 100

Molar mass of Na2SO4

= 32.065

------------ x 100

142

=0.225 x 100

= 22.5%

help me with this asap rocky pleasee

Answers

Answer:

b

Explanation:

In the cycle, after a new moon, _______________ means light appears on the _____________ side of the moon and continues to ________________.

Answers

Answer:

Explanation:

In the cycle, after a new moon, waxing means light appears on the right side of the moon and continues to increase.

Other Questions
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz helppppppppppppppppppppComplete the sentence: Write what each person eats using the correct form of the verb comer plus a food item. Mi hermano come arroz con pollo.__________________Mi pap______________________Mi prima_____________________Yo___________________________Mis amigos y yo_______________ Daylight is fading away, night silhouettes in the sky LED lights are flashing on towers It's Manhattan's magical time Ballerinas dancing the Swan Lake On a river made of diamonds and pearls Everything's a little bit weird now Because tonight, it is showtime In the middle of the street life All we celebrate are good times Because tonight, it is showtime Come and walk with me 1273 down the Rockefeller street Life is marchin' on, do you feel that? 1273 down the Rockefeller street Everything is more than surreal Keep movin', keep movin', keep movin', keep movin' If you want to know what Rockefeller groove is Keep movin', keep movin', keep movin', keep movin' Time is right to celebrate good times 1273 down the Rockefeller street Life is marchin' on, do you feel that? 1273 down the Rockefeller street Everything is more than surreal So let's keep movin' on Keep movin', keep movin', keep movin', keep movin' If you want to know what Rockefeller groove is Keep movin', keep movin', keep movin', keep movin' Time is right to celebrate good times Oldschool Hollywood stars Party cinderellas are here They move like computer game heroes Because they know it is showtime In the middle of the street life All they celebrate are good times Because tonight it is showtime So let's keep movin' on 1273 down the Rockefeller street Life is marchin' on, do you feel that? 1273 down the Rockefeller street Everything is more than surreal So let's keep movin' on Keep movin', keep movin', keep movin', keep movin' If you want to know what Rockefeller groove is Keep movin', keep movin', keep movin', keep movin' Time is right to celebrate the good times 1273 down the Rockefeller street Life is marchin' on, do you feel that? 1273 down the Rockefeller street Everything is more than surreal So let's keep movin' on Hich statement best describes a change that usually takes place in the human body when the heart rate increases as a result of exercise? Find cosX and cosZ. Write each answer as a fraction and as a decimal. Round to four decimals places, if necessary. Fractions to reduce and use /. Please find this answer! No, really, I can't figure it out. A triangle is dilated with the resulting image appearing half as large as the original. Which rule best represents this dilation? A. (x, y) (2x, 2y)B. (x, y) (.5x, 2y)C.(x, y) (x-.5, y-.5)D. (x, y) (.5x, .5y) At a toy story,Colton can buy a passage of 8 mini footballs for 10.40. The price per mini football is $ ? pleaseeeeeeeeehelppppppppppp What is the phrasethat represents theHispanic populationof California?One tenth One third one fifth One half What is the value of X What is 8/9 times 1/2 hiii please help ill give brainliest The game officials' role in team sports includes all the following EXCEPT:A. enforcing the rules of the competitionB.starting and ending the competitionC. choosing which players should be substitutedD. approving each team's scorePlease select the best answer from the choices provided.O AOBOD Help please this is urgent A 4th grade class took a field trip to a science museum. There are 24 students in the class. Each students purchased $9 ticket for the museum and a box lunch, which was also $9. What is the perimeter of the rectangle?18 m31 mmeters Monica is completing an Algebra test worth 100 points. There are 14 questions on the test that are equally valued. How many points is each question worth? Round to nearest tenth of a point. This artist recorded "Rocket 88."O A. Bill HaleyB. Carl PerkinsC. The BeatlesD. Flaming Lips 5 = 9 f 90 i rllly need help on the plz someone answer it