can somone help me plzzzzzzzzzzzzz

Can Somone Help Me Plzzzzzzzzzzzzz

Answers

Answer 1

Answer:

[tex]\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}[/tex]

[tex] \huge\red{ \mid{ \underline{ \overline{ \tt Fe }} \mid}}[/tex]

→ Molar Mas = 55.85 g/mol

[tex] \huge\orange{ \mid{ \underline{ \overline{ \tt NaCl }} \mid}}[/tex]

→ Molar Mass = 58.44 g/mol

[tex] \huge\red{ \mid{ \underline{ \overline{ \tt CH₄ }} \mid}}[/tex]

→ Molar Mass = 16.02 g/mol

[tex] \huge\orange{ \mid{ \underline{ \overline{ \tt Ca(OH)₂ }} \mid}}[/tex]

→ Molar Mass = 74.10 g/mol

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

[tex] \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐ }} \mid}}[/tex]

Answer 2

Answer:

Fe -> 55.85g/mol

NaCl-> 58.44g/mol

CH₄->16.02g/mol

Ca(OH)₂->74.10g/mol

Explanation:

NaCl = 22.990 + 35.45  = 58.44g/mol

CH₄ = 12.011 + (1.008 × 4) = 16.043 g/mol

Ca(OH)₂ = 40.078  + 2(15.999 + 1.008) = 74.092 g/mol


Related Questions

Why did NASA design the Lunar Prospector spacecraft to crash into the Moon?
A.
to find the presence of water
B.
to find the strength of the lunar surface
C.
to collect mineral samples on subsequent missions
D.
to find the chemical composition of the Moon

Answers

NASA decided to crash the Lunar Prospector into a crater on the south pole in a search for definite confirmation of water ice on the moon. Scientists had hoped to detect a cloud of water vapour in the lunar sky resulting from the 3,800 mph impact.

ch
Sickle cell is a disease where a person has abnormally shaped blood cells.
The reason for the abnormal shape of blood lies in the underlying genetic
code.
$
The sequence below shows a part of the genetic code for the HBB Gene.
This gene provides the instructions for making a protein called beta-globin.
The gene sequence is shown below. Use the sequence to create RNA and
the sequence of amino acids.
cha
Hemoglobin
DNA of HbA - hemoglobin in normal adults
DNA
3 to 5
C A C |G I G LG A C I G A LG G A
СТТСТС
RNA
Amino Acid

Answers

Answer:

mmmm science lip bite

Explanation:

Identify the macromolecules labeled as A, B, and C and explain their role within the context of the cell membrane (as presented in the picture).

Answers

Answer:

may we see the picture??

Explanation:

The African savanna is a large grassland region with few trees that is hot and
seasonally dry. A population of lions and a population of wild dogs living there are
most likely to compete with each other for *
(1) mates
(2) water
(3) air
(4) sunlight

Answers

Answer:

Water.

Explanation:

OK for mates, it doesnt make sense cuz they are different animals, soo it's unlike for a lion to mate with a savanna dog.

For air, there is plenty, they arent trap in the same bubble (if you know what I mean)

And sunlight,  its a large grassland and not alot of trees, so mostly likely they are in it all the time.

The simple structure of prokaryotes allows them to

A. become multicellular.

B. reproduce quickly and effectively.

Answers

Answer:

Hey mate....

Explanation:

This is ur answer.....

B. reproduce quickly and effectively.

Hope it helps!

Brainliest pls.....

Follow me! :)

Binary fission is a method of cell division used by prokaryotes to reproduce. This procedure involves splitting one cell into two and copying the chromosome, just like mitosis in eukaryotes. Thus option B is correct.

What is simple structure of prokaryotes?

Prokaryotic cells lack organelles, have no nucleus, and are significantly smaller than eukaryotic cells.

A cell wall protects every prokaryotic cell. Many additionally include a polysaccharide-based capsule or slime layer.

The nucleoid of prokaryotic cells normally houses a single, circular chromosome. Prokaryotic cells can replicate more quickly than eukaryotic cells because they typically only contain one circular chromosome.

A prokaryotic cell can really go through two cycles of DNA replication before the cell divides.

Therefore, simple structure of prokaryotes allows them to reproduce quickly and effectively.

Learn more about structure of prokaryotes here:

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You have come across a website with the following
address: http://www.epa.gov. What does the ".gov"
in this Internet address mean?
A. The site can be accessed only by
government officials.
B. The content is political in nature.
C. The content is current.
D. The site is hosted by a government agency.

Answers

C the content is current but It might be D

Prokaryotes do NOT have
A. cell membranes

B. membrane-bound organelles

C. DNA

Answers

Answer:

B. Membrane-bound organelles

Explanation:

Prokaryotes don't have a nucleus compared to the eukaryotes which do and are considered as all living organisms

Answer: B.

Explanation:

You want to know if the temperature of water affects how quickly a cube of
sugar will dissolve, or seem to disappear, into the water. In a controlled
experiment, what would be the responding (dependent), variable?
O The time it takes for the sugar cube to dissolve in water
O The amount of water
O The size of the sugar cube
The temperature of the water

Answers

Answer:

The time it takes for the sugar cube to dissolve in water

Explanation:

Factors that cause a population to not grow exponentially are called?​

Answers

factors that can lead to to a population not growing exponentially is called food scarcity.

Explain how
prokaryotes are
classified
differently than
eukaryotes.

Answers

Answer: The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is only one of the many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles.

Explanation: Have a great day hope this helps!

7. The diagrams show stages in the passage of water through a plant,
The circles are the starting points for arrows to show the direction in which the water moves.
Which circle must have an arrow pointing downwards only?

Answers

I don’t now but I think is a

From the understanding of how water moves through plants, the only circle that can have a downward pointing arrow only is A.

Water moves through a plant in the following direction:

Soil ----> root -----> stem ----> leaves

Once water gets into the root from the soil, a conducting tissue known as xylem conducts the water upward through the stem of the plant branching off into the leaves through the petiole. from the petiole, water is then conducted to the mesophyll cells.

Circle D represents the root, so the arrow must be upward.

Circle C represents the stem, the arrow continues upward towards the leaves

Circle A and B represent the leaf. The movement of water within the leaf might requires that it is from circle A to circle B. Hence, the only circle that must have an arrow pointing downward only can only be A.

More on the movement of water through a plant can be found here: https://brainly.com/question/11903396

Which of the following organisms cannot create their own food?
O Plants such as grasses
O Protists such as algae
O Animals such as humans
O Plants such as trees

Answers

Answer:

animals such as humans

Explanation:

Answer:

animals such as humans

Explanation:

mark me brainliest!!!!

Label the items on the picture by dragging to correct answer to the correct letter below the picture.

A=

B=

C=

D=

E=

F=

G=

Answers

Answer:

The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.

Explanation:

In a batch culture, bacterial cultures typically exhibit four different phases of growth. In which phase are the cells rapidly synthesizing proteins, but cell numbers are not changing

Answers

Answer:

Lag phase

Explanation:

The lag phase is the first phase of bacteria growth and it is refer to period when bacteria is first introduced to the culture and the time it started increasing. The lag phase is the phase bacteria adapt to growth conditions and start surviving in the environment. It is the time bacteria start growing and cannot divide. In this phase , RNA and enzymes are synthesized.

The process where messenger RNA (mRNA) is created from instructions
the DNA is called?

A.Transcription
B.Translation
C.Replication
D.None of the above

Answers

Answer:C.....

Explanation:

Its means translation so B

The heart pumps oxygenated blood to the _____ and deoxygenated blood to the _____. A) body:liver B) body:lungs C) brain:lungs D) lungs:nose Eliminate

Answers

Answer:

The Answer is  B) body:lungs

Explanation:

The body sends oxygenated blood (blood enriched with oxygen) to the body where oxygen is used and blood becomes deoxygenated. This blood when received in heart is pumped to Lungs where oxygen is taken up by blood through alveoli in our lungs. This way deoxygenated blood gets oxygenated and is pumped to the rest of the body and the cycle repeats.

All other options are wrong as blood can only get oxygenated at lungs through small air chambers called alveoli where oxygenation takes place.

4. Blood group which has both types of antibodies is.....
A-A
В- 0
C-AB
D-B​

Answers

Answer:

c-ab is the only correct answer

A is A be is 0 c is an and d is b

Which process will directly result in organic matter being added to the soil?

water freezing in cracks of rocks


glaciers carving out a valley


river water eroding the banks of a stream


bacteria breaking down dead matter

Answers

Answer:

I think it should be the last one, "bacteria breaking down dead matter" hope this helps !!

Can someone help me list the following events?

Answers

Answer:

Explanation:

 A: Rocky crust

B: Mohorovicic

C: outer mantel

D: inner mantel

E: Gutenbem

F :outer core

G  :inner core

How does mining impact the environment?
It has a positive impact on the environment by permanently altering the ecosystem.
It has a positive impact on the environment by releasing chemicals into the environment.
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife.
It has a negative impact on the environment by providing new niches for wildlife to inhabit.

Answers

Answer:

It has a negative impact on the environment by allowing toxic chemicals to harm wildlife

Mining affects the environment and has a negative impact on it, this type of human activity produces toxic chemicals that harm wildlife.

What are the impacts of mining?

Mining has a significant impact on the environment, as the development of this activity almost always involves suppression of vegetation, exposure of the soil to erosive processes with changes in the quantity and quality of surface and underground water resources, in addition to causing air pollution.

With this information, we can conclude that Mining affects the environment has a negative impact on the environment, allowing toxic chemicals to harm wildlife.

Learn more about Mining in brainly.com/question/14277327

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Make a list of benefits from adding ethanol to gasoline?

Answers

Reduces carbon monoxide emissions from gasoline and improves fuel octane

6 Which of the following statements about shark teeth fossil evidence is not consistent with the scientific theory of evolution? (7 Points) A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks. B. Many fossils of Shał teeth have been found that show different sizes and serrations (saw-like edges). These fossil teeth have distinct differences and similarities to modern sharks. C. Many fossils of Shark scales have been found that have features of enlarged scales that resemble a brush. Our modern sharks do not have or need this type of scale to survive. D. A new shark fossil has been found that has characteristics in the size of the teeth and the serrations (saw-like edges) that are in between the older fossils found and the modern shark.​

Answers

Answer:

A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks.

Explanation:

Evolution is the change in characteristics of a species over time and it relies on the process of natural selection.

The theory of evolution states that all species are related and gradually change over time.

Since all options except A show a change in the characteristics of shark teeth in the fossils found in relation to modern sharks, option A is the answer. Since, there is no change in characteristics between the Shark teeth in the fossils and that of modern sharks.

So, option A is the answer.

A tomato plant in a greenhouse was found to be
infected with tobacco mosaic virus. A few weeks
later, nearby plants were also found to be infected
with the virus.
Which of the following best describes how the
virus reproduced?
A The virus made its own spores.
B The virus produced seeds in the tomatoes.
C The virus used the host plant's resources and
machinery to reproduce.
D The virus immediately killed the host plant and
was free to reproduce.

Answers

Answer:

C. The virus used the host plant's resources and

machinery to reproduce.

Explanation:

Name three effects on an ecosystem when biodiversity is lost

Answers

Answer:

At higher levels of extinction (41 to 60 percent of species), the impacts of species loss ranked with those of many other major drivers of environmental change, such as ozone pollution, acid deposition on forests, and nutrient pollution.

Explanation:

Answer:

There are a lot because without biodiversity there is no balance in the ecosystem.

Explanation:

species loss(some animals start dying)

environmental change(kind of like climate change)

Pollution(wild fires, pollution in waters and nutrients)

Hope this helps:)

hueso impar y externo de la cabeza , ubicado en la parte posterior e inferior de la misma

Answers

Answer:

creo que es el cranio

Extinction is the dying out of a species. What can lead to the extinction of a species if
the environment changes?
A.
B.
sexual reproduction within a species
a lack of adaptations within a species
an increase in the reproductive rate within a species
the presence of genetic variations among a species
C.
D.

Answers

Answer:

the world shows no mercy so y should you

Explanation:

no mercy

HELP!!! WILL GIVE BRAINLIEST!!!

Which of the following is an enample of thigmotropism?

Plant growing toward water


Plant turning away from light

Plant growing up a fence

Answers

i think it’s plant growing up a fence

Answer:

Thigmotropism is a plant turning away from something that it touches so i the its the second one

Explanation:

since it says the light is touching the flower and its trying to get away from i would say the second one

please help
Explain how you think the runner continues to make ATP when her oxygen is limited?​

Answers

In the absence of oxygen, fermentation releases energy from food molecules by producing ATP.

Explanation: By fermentation releasing food molecules it allows for ATP to begin.

This is a DNA strand: TACGAA Which of the following is the
complementary DNA strand that would be made through Replication?
A. GCAUCC
B. ATGCYT
C. AUGCUU
D. GCATCC

Answers

B. ATGCYT. Would be c if it was a rna strand.

Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select the two correct answers.

A. CMB is uniformly distributed and of a uniform temperature across the universe.
B. CMB is constantly generated by stars.
C. CMB is remnant radiation from the Big Bang.
D. CMB is randomly distributed and of differing temperatures across the universe.

Answers

Answer:

if I am correct the answer should be C

The answer to the question Which of the following is an accurate description of cosmic microwave background (CMB) radiation is A: CMB is uniformly distributed and of a uniform temperature across the universe. and C: CMB is remnant radiation from Big Bang

The Big Bang is the scientific explanation of the origins of the universe. The Big Bang occurred some 13.77 million years ago.

At the occurrence of the Big Bang, the universe started to develop and the first few atoms were formed. As the universe was formed at the big bang, cosmic microwave background (CMB) radiation developed.

This cosmic microwave background (CMB) radiation is an electromagnetic radiation. CMB radiation is a faint cosmic background radiation filling space. CMB radiation is a remnant radiation from the Big bang. CMB radiation is uniformly distributed and of a uniform temperature across the universe. This cosmic microwave background radiation was first detected in 1965 by American astronomers  Arno Penzias and Robert Wilson. This discovery of the cosmic microwave background radiation was evidence of the Big bang.

Thus, the CMB is remnant radiation from Big Bang and CMB is uniformly distributed and of a uniform temperature across the universe.

So, the answer to the question Which of the following is an accurate description of cosmic microwave background (CMB) radiation is A: CMB is uniformly distributed and of a uniform temperature across the universe. and C: CMB is remnant radiation from Big Bang

Learn more about cosmic microwave background (CMB) radiation here:

https://brainly.com/question/16046133

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The numbered tiles were placed inside a bag. A number is randomly selected from the bag 20 times. The tile is returned to the bag after each selection.In theory, how many times would you expect to select an even number? Which of the following are considered nonrenewable sources of energy defintion of melancholy Help plz! 1. Historically, before the industrial revolution, man lived a healthier life in all BUT ONE of the following ways: a. He ate more natural foodsb. He ate foods with greater nutritional valuec. He led a more vigorous life with greater physical activityd. He had better ways of storing and preserving food 22. Which word is associated with delightful?a. Jeopardyb. Suavec. Prodigyyd. Festoon (2/3x +1 = 5 -8) solve for x no links a * b = 3a - 2b2*(6*4)=working please!!! 1. Valerie's monthly income is $300 and her monthly expenses are $250. How much moneycould Valerie save in the next eight months without changing her income or expenses? Read the introduction and first paragraph of an essay about energy sources.(1) The nation's energy use is largely dependent on fossil fuels. (2) These fuels are nonrenewable resources, and they cause pollution. (3) We cannot continue our reliance on a fuel that will eventually run out. (4) Thus, we must find other ways to sustain our energy demands. (5) Pursuing alternative fuel sources is the key to solving our energy crisis.(6) Currently, about 1 percent of energy in the United States is produced by the sun, and solar energy has the potential to become a more widely used energy source. (7) Through different technologies, such as solar cells, scientists have learned to use the suns radiation to create electricity. (8) Solar energy is both inexhaustible and clean. (9) The major limit to this alternative source is that equipment is expensive. (10) Developing a cost-effective way to harness the power of the sun will be a significant development in solving our energy crisis.Read the following sentence.Researchers are working on batteries that store energy generated from solar power, so it could be used at all times.Where in the essay should the above sentence be added and why?after sentence 10 to serve as a conclusionafter sentence 5 as part of the claimafter sentence 6 to support the topic sentenceafter sentence 9 to support the counterclaim If Shelly makes $25 an hour and gets a 15% decrease in her pay, what is her new hourly rate? Why did the colonists start wearing moccasins?Shoes became scarce and expensive.The colonists liked moccasins better.England would not send shoes.They were more comfortable. Your English teacher wants you to write a story. Your story must begin with this sentence:As the competition started, Stef felt very excitedWrite your story in 100 - 120 words in an appropriate style below. Help meeeee And no links please What do I have to do to find m Which of the following was NOT an effect of Joseph Stalin's plan of collectivization?O it led to a widespread famineOmillions of farmers joined in his planhis plan ultimately led to the death of over 3 million peoplecollectivization meant total government control of all farms Tuesday Pizza Hut made 50 pizzas. Of thesepizzas, 30% were cheese, 40% werehamburger, and the rest were pepperoni. Howmany pepperoni pizzas did Pizza Hut make onTuesday?A.15 pizzasB.30 pizzasC.35 pizzasD.Not Here What is the equation for -19 = b - 6 Need answer ASAP, don't need explanation. Find the area of the shaded region. Those are the four options. Write an equation of the line that contains the given points.(-1,9), (0, -8) Suppose the stereocilia of one hair cell become permanently bent toward the kinocilium. What will most likely happen as a consequence im giving 20 points for this i really need helpThe first step in writing an essay is _____.deciding purposedraftingselecting a topicdeciding length