4Fe2O3

Fe =

O =


,mlhk

Answers

Answer 1

Answer:

Fe stands for iron and O stands for oxygen in the periodic table.

Explanation:

I don't really know what you need help with :/


Related Questions

what is the function of the Diaphragm

Answers

Answer: It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs. The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

Explanation:

Answer:

The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.

What three basic things must the human population have in order to survive?
O A. Shelter, money, and waste disposal
O B. Food, shelter, and transport
O C. Food, shelter, and water
O D. Electricity, water, and farmland
Please help

Answers

Answer:

C is the correct answer

Answer:

Food, water and shelter are the three basic things the human population must have in order to survive.

Explanation:

can someone please help me with biology?

6) Complete the illustration below by filling in with numbers 2 to 6 respectively.

______Ultraviolet radiation, lightning, and lack of oxygen create organic molecules (proteins and DNA) from inorganic molecules.

______Mutation enables cell to perform photosynthesis. Oxygen enters the atmosphere and protocells die off.

______Protocell is formed with borders like cell membranes.

______Heterotrophic prokaryotic cell is formed.

______Primordial seas

Answers

Answer:3,6,4,5,2

Explanation:

can someone help me asapp

Answers

Answer:

the answer is b it's not the center of the universe

Explanation:

its not

ABC is an isosceles triangle with AB = BC. If AB = 3x + 41, BC =
8x – 54, and AC = 12x – 103, find x and the measure of each side.

Answers

Answer:

x = 90

Explanation:

Ab = 3x + 41, BC = 8x - 54, and AC = 12x - 103, find x and the measure of each side.

-----

AC = AB + BC

------

12x-103 = 3x+41 + 8x-54

---------------------

12x-103 = 11x - 13

x = 103-13

x = 90

cellular activity across a cell membrane

Answers

Answer:

The plasma membrane is a selectively permeable barrier between the cell and the extracellular environment. Transport of such molecules and ions across all cellular membranes is mediated by transport proteins associated with the underlying bilayer.

Explanation:

After she has viewed the cells, she wants to produce a scientific drawing of them.
Her teacher has told her to use smooth lines to draw the structures she can see.
Give two other ways in which she can make sure she produces an accurate and useful drawing.

Answers

make a large clear drawing, include magnification used, use a ruler, when labelling write horizontally forming a vertical list. hope this helps :)

After she has viewed the cells, she wants to produce a scientific drawing of them.The other ways in which she can make sure she produces an accurate and useful drawing is make a large clear drawing, include magnification used, use a ruler, when labeling write horizontally forming a vertical list.

What is scientific experiment?

An experiment has been defined as process that is designed to diagnose the hypothesis which has the portion of the scientific method or procedure.

Scientific experiment has done by testing the particular medicine on an animal and by observing the impact of medicine on the animal as well as the reaction of the animal.

There are mainly three types of scientific experiments and these are the experimental which has been consist of the major level of scientific experimentation. The second type has been known as Quasi- experimental and third type has been known non- experimental study or research.

Therefore, After she has viewed the cells, she wants to produce a scientific drawing of them.The other ways in which she can make sure she produces an accurate and useful drawing is make a large clear drawing, include magnification used, use a ruler, when labeling write horizontally forming a vertical list.

Learn more about scientific experiment here:

https://brainly.com/question/2449529

#SPJ5

How is active transport different from passive transport? (Select all that apply.)

Answers

Do u have the list?...............

Answer:

One uses energy and one does not.

Explanation:

Can you mark me as BRAINLLEST PLEASE!!!!!!!!!!  :-(  T_T  (ToT)(  T_T)  (x_x)

An allele that occurs in the gametes of an organism will most likely be transferred to which of the following?
O The offspring of the organism
O The mating partner of the organism
The siblings of the organism
O The other organisms living nearby


NEED HELP ASAP !!!! Thank you

Answers

Answer:

The offspring of the organism

Explanation:

The alleles of two mature gametes swap and mix during the reproduction process. Allowing for expression of certain more dominant or recessive traits in an offspring. An offspring contains a mix of allele say Aa from aa, AA parents alleles.

Where can the following organelle be found:
Vacuole
Answer : it can be found it animals cells and plant cells
(I did the test guys )

Answers

vaculoe you already know the answer ??

Below is a list of the characteristics of carbon.
Check all the characteristics that you included in
your response.
A.Carbon occurs as a solid, liquid, and gas.
B.Carbon is found everywhere.
C.Carbon is versatile and easily combines with
other elements.
D.Carbon bonds with other elements to form
macromolecules.

Answers

The answer is C. Carbon is versatile and easily combines with other elements

Answer:

The answer is C because there are trees everywhere.

how far is each planet from the sun.................

Answers

Answer:

1. Mercury: 31.197 million mi

2. Venus: 66.81 million mi

3. Earth: 92.96 million mi

4. Mars: 141.6 million mi

5. Jupiter: 483.8 million mi

6. Saturn: 890.8 million mi

7. Uranus: 1.784 billion mi

8. Neptune: 2.793 billion mi

Explanation:

Hope this helps ;}

Mercury is 57,910,000 km (0.387 AU) from the sun

Venus is 108,200,000 km (0.723 AU) from the sun

Earth is 149,600,000 km (1.000 AU) from the sun

Mars is 227,940,000 km (1.524 AU) from the sun

Jupiter 778,330,000 km (5.203 AU)


Saturn 1,424,600,000 km (9.523 AU)

Uranus 2,873,550,000 km (19.208 AU) 51,118 km

Neptune 4,501,000,000 km (30.087 AU)

PLZ HELP IM TIMED
How does the graphic in the section "One Atmosphere, Many Layers" develop a coherent understanding of Earth's atmosphere?

A
It illustrates where each layer of the atmosphere is located.
B
It outlines what each layer of the atmosphere is made up of.
C
It helps the reader to see that weather happens in different layers of the atmosphere.
D
It helps the reader to understand which layers of the atmosphere are most important.

Answers

Answer:

D

Explanation:

difference between viruses and cells?

Answers

Answer:Cells exist by themselves such as bacteria....

Whilst Virus are non loving infectious particles and need a living host to reproduce.

Answer:

Cells are the basic units of life. Cells can exist by themselves, like bacteria, or as part of a larger organism, like our cells. Viruses are non-living infectious particles, much smaller than a cell, and need a living host to reproduce. The genetic material of the cell is DNA, a double stranded helix.

Another reason is because they can't reproduce by themselves (without a host), viruses are not considered living. Nor do viruses have cells: they're very small, much smaller than the cells of living things, and are basically just packages of nucleic acid and protein.

Explanation:

How many neutrons does Phosphorus have? Use the diagram below to help find the amount:

Answers

Answer:

16

Explanation:

hurry plz help for test due in 5 min

Answers

Answer:

Hello! Brainly is a website used for help on school but you should not use brainly for exams, test, or quizes!

                                                                                    BrainlyMiddleSchool

Need help Plz!!!!

Choose ONE of the three writing assignments below and write a 4-6 sentence letter. Use science vocabulary, full sentences, proper grammar and details that show your understanding.


An 8th grader writing to a scientist telling them what they know about bacteria and asking more questions.


A harmful bacteria writing to a good bacteria telling them how they hurt humans and why they’re cooler.


A teacher writing to a confused student about the differences between bacteria and other life forms.

Answers

A teacher writing to a confused student.

bacteria are microscopic (very tiny) organisms that are unicellular (made up of a single cell). One fundamental difference is that bacterial cells lack intracellular organelles, such as mitochondria, chloroplasts, and a nucleus, which are present in both animal cells and plant cells.

Atkins, Southbeach, and Keto are just a few diets that claim to help people lose weight and live healthier. If an individual wants to have quick
energy and build muscle what two biomolecules will help them achieve their goal.

PLEASE HURRY!! ITS A TIMED TEST!!!!

Answers

Answer: The answer is D

Explanation:

How many moles of arsenic are in 1.204 x 1024 atoms of arsenic?

Answers

What is the mass in grams of 1.00×1023 radon atoms? Use 6.022×1023mol−1 for Avogadro's number. Your answer should have three significant figures. 36.9 grams.

Answer: 2.0 moles

Explanation:

After examining the picture, which of the following formations is most likely the youngest?

bed B
bed D
d-i-k-e M
bed C

Answers

Answer: The real answer is Bed D

bed d is wrong! the answer is dk M

If an animal cell is placed in a hypotonic solution, it will undergo.
O endocytosis
O exocytosis
O cytolysis
O plasmolysis

Answers

Explanation:

Plasmolysis is the process in which cells lose water in a hypertonic solution. The reverse process, deplasmolysis or cytolysis, can occur if the cell

Answer:

Hello Hanji please send phone number watsapp

Imagine you are a world famous primatologist, a scientist who studies primates. An
unidentified, complete fossil skeleton arrives at your lab. You suspect that it's a primate
fossil. What observations would you make to determine if your suspicions are accurate?

Answers

The first thing I would do is compare it to another primate skeleton and contrast the two skeletons. Next I would try to brainstorm whether or not it’s a cousin of let’s say an orangutan or gorilla.
(This is all I could come up with sorry)

Simple organic molecules combine to make larger molecules. Which statement best describes the disruption of the bond between two carbohydrate monomers? (3 points) Dehydration synthesis will remove water molecules, forcing the bond to break. Energy will be stored in the bond between monomers through hydrolysis. The bond in the complex carbohydrate will be broken due to enzyme activity. The helium and hydrogen atoms in the backbone of the sugar will be broken.

Answers

Answer:

The correct answer is - The bond in the complex carbohydrate will be broken due to enzyme activity

Explanation:

Carbohydrates are macromolecules formed by the combined simple monomer subunits to make a larger subunit or chain of molecules. Dehydration synthesis is the process required for the build-up of these larger molecules and for this they require energy.

The hydrolysis reaction is used to break the hydrogen bond of these monomer backbones by the addition of water which releases energy. Complex carbohydrates are digested or the bonds present in between their monomers are broken down due to the activity of the series of the enzymatic reaction.

Answer: The bond in the complex carbohydrate will be broken due to enzyme activity.

When will a seed begin to germinate?

A. When it has sunlight and water

B. When it has energy

C. When it has water

D. When it has sunlight

Answers

Answer:

A

Explanation:

When it has sunlight and water

Answer:

A. When it has sunlight and water

Explanation:

The human genome project was produced an area of science known as bioinformatics. how is this helpful in sequencing DNA?

Answers

Bioinformatics is a subdiscipline of biology/computer science concerned with the acquisition, storage, analysis, and dissemination of biological data. This helps organize and determine nucleotides of a given DNA molecule from known data about biological data through computer sustems.

** The Human Genome Project increased speed of DNA sequencing and lowered the cost. Basically made it more efficent.

Check out Bioinformatics lectures and websites! You will gain a better understanding of how this is helpful for sequencing DNA.

How has the environment of this location changed since Basilosaurus lived?

Answers

The fossil shown in this photo is of a Basilosaurus. Its skeletal features suggest that it spent its entire life swimming in the ocean. Look at the environment the fossil was found in. Consider that Basilosaurus lived in the ocean

Nitrogenous bases are located on both stands of the DNA double helix. What is the significance of the nitrogenous bases?

Answers

Answer:

the nitrogenous bases form hydrogen bonds between opposing DNA strands to form the rungs of the Twisted ladder or double helix of DNA or biological catalysts that is found in the nucleotides.

Explanation:

hope this helps :]

which of the following is not a fluid? air, water, carbon dioxide, or wood

Answers

Answer:

Wood

Explanation:

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

Wood is not a fluid. It is a solid.

*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^*^

#teamtrees #WAP (Water And Plant)

Answer:

wood

Explanation:

its common scene luv

why is phosphorous an important cycle on the earth and how does it have little correlation to human life

+30pts and brainliest

Answers

Answer:

aaaaaaaaaaaaaaaaaaaaaaaaa6rytr



The atomic number of carbon is six, which means that a carbon atom has six protons. Carbon has three

naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. Which of these statements are true

about carbon and its isotopes? Select all that apply.

A. All carbon atoms have six neutrons.

B. All carbon atoms have six protons and six electrons.

?

C. Atoms of all carbon isotopes have either more than 6 electrons or fewer than 6 electrons.

D. Atoms of some naturally occurring carbon isotopes may have six neutrons.

E. Atoms of some naturally occurring carbon isotopes may have twelve neutrons.

Feed

Answers

Answer:

B. All carbon atoms have six protons and six electrons.

D. Atoms of some naturally occurring carbon isotopes may have six neutrons

Explanation:

Isotopes are atoms of the same elements having same atomic number but different atomic masses.

Atomic number is the number of protons (or electron number in neutral atoms) present in the atomic nucleus of the atom.

Atomic mass number is the sum of protons and neutrons present in the nucleus of the atom.

Considering the options above from the above definitions:

A. All carbon atoms have six neutrons is false because carbon-12, carbon-13 and carbon-14 has 6, 7 and 8 neutrons respectively.

B. All carbon atoms have six protons and six electrons is true because the atomic number of carbon is 12.

C. Atoms of all carbon isotopes have either more than 6 electrons or fewer than 6 electrons is false because atoms of all carbon isotopes have six electrons.

D. Atoms of some naturally occurring carbon isotopes may have six neutrons is true because atoms of carbon-12 have six neutrons.

E. Atoms of some naturally occurring carbon isotopes may have twelve neutrons is false because none of carbon-12, carbon-13 or carbon-14 have twelve neutrons.

Answer:

the answer is b and d

Explanation:

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