what is the discussion for the lab ( to determine if both water and oxygen are necessary for rusting)​

Answers

Answer 1

Answer:

Rust is iron oxide or Fe304, water is H2O

3Fe + 4H2O → Fe3O4 + 4H2

Explanation:


Related Questions

ATP and ADP both play a role in cellular reactions involving energy. How are these two molecules related

Answers

Explanation:

If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell. ... When it's run down, it's ADP.

ATP is converted into ADP and ADP can be changed back to ATP by the addition of a phosphate group.

Can you please tell me an explanation of what happens during the prophase stage of mitosis?
i will mark brainliest
Please dont copy and paste ​

Answers

Prophase is the first step in mitosis and many changes occur. Chromatin fibers become coiled into chromosomes, with each chromosome having 2 chromatids joined at a centromere. The mitosis spindle, composed of microtubules and proteins, form in the cytoplasm.

a strong but flexible barrier between the cell and its surroundings?
cell membrane
cell wall
cytoplasm
chloroplst​

Answers

Cell membrane I believe
it’s the cell membrane

what will happen to us if our body temperature fluctuate​

Answers

Answer:

If the body temperature is too low, the enzymes in the body become inactive so many metabolic reactions cannot happen effectively, our metabolic rate will be affected, we may suffer from hypothermia.

If the temperature is higher than 37degree celsius, we will have a fever. But this actually allows enzymes to work at their optimum temperature, which speeds up the metabolic reactions in the body and is good for us.

the sun is the ______ source of energy for hetertrophs

Answers

Answer:

main (let me know if I am wrong but that seems right) can I get brainliest please? (rate 5 stars please)

Explanation:

What part of the rotifer is responsible for crushing food?
I said foot but I might be wrong. Help, anyone?

Answers

Answer:

Rotifers are specialists at living in habitats where water dries up regularly.

The Monogononta, which have males, produce fertilised 'resting eggs' which can resist desiccation (drought) for long periods.[11]

The Bdelloids, who have no males, contract into an inert form and lose almost all body water, a process known as cryptobiosis. Bdelloids can also survive the dry state for long periods: the longest well-documented dormancy is nine years. After they have dried, they may be revived by adding water. In this, and several other ways, they are a unique group of animals.[12]

Explanation:

The front has a ring of cilia circling the mouth. This gave the rotifers their old name of "wheel animalules". There is a protective lorica round its body, and a foot. Inside the lorica are the usual organs in miniturised form: a brain, an eye-spot, jaws, stomach, kidneys, urinary bladder.

Rotifers have a number of unusual features. Biologists suppose that these peculiarities are adaptations to their small size and the transient (fast changing) nature of its habitats.

Answer:

Trophi (got it right on my quiz)

Explanation:

The trophi located behind the rotifer's mouth are responsible for crushing food.

Question 7 of 10
A species consists of all the individual living things that
can mate with one another and produce fertile offspring,
These individuals live in groups called populations.
Communities of living things consist of populations of
many species
Which unit of living organisms does natural selection operate on?
O A. Communities
B. Populations
C. Species
O D. Individuals
PREVIOUS

Answers

Answer:

Species

Explanation:

I did a lesson on this last year, and I beileve it was species becuase its the species undergoing the changes.

Answer:

Explanation:

D individuals

The leukocyte (a white blood cell) is part of the immune system. Is it smaller or larger than the pathogens?

Answers

Answer:

I think its smaller!

Explanation:

Hope this helps!!!

Have a great day!!!<3

How many membranes cover the Golgi apparatus?

Answers

Answer:

The Golgi apparatus (GA), also called Golgi body or Golgi complex and found universally in both plant and animal cells, is typically comprised of a series of five to eight cup-shaped, membrane-covered sacs called cisternae that look something like a stack of deflated balloons.

Explanation:

The Golgi apparatus is a series of membranes shaped like pancakes. The single membrane is similar to the cell membrane in that it has two layers. The membrane surrounds an area of fluid where the complex molecules (proteins, sugars, enzymes) are stored and changed.

Answer:

3 to 8 membranes called cisternae

why africa is very poor continent though it is very rich in natural resource?

Answers

Answer: Africa is poor because of lack of commitment to good governance

Explanation:

During what part of the life cycle can an amphibian have both gills and lungs?
Select one:

a.
metamorphic

b.
adult

c.
larvae

d.
egg

Answers

Answer:

at the metamorphic age that I can think

Answer: a.  metamorphic.

Explanation: During the metamorphic stage, the amphibians change from larvae into a full-grown adult. In this stage, the amphibians develop lungs and they have both lungs and gills until the gills disappear.

HELP PLEASE ASAP IM REALLY BAD AT SCIENCE

Answers

Answer:

2. All light does share the same wavelength.

3. I would say mostly red and orange(two last one).

Why do you think mapping the bedbug genome may help scientists control pests?

Answers

Explanation:

When mapping the genome, it shows where other pests are more likely to appear. This means more control over the rate of pest growth, and they can stop reproduction from increasing.

Understanding the genome will enable scientists to know what traits the bug has and whether they have any resistance to insecticides. The bugs may have natural resistance to certain insecticides, but not to others. This research may help scientists develop effective insecticides.

PLEASE ANSWER QUICKLY! WILL GIVE BRAINLIEST

The chart shows information about four ecosystems. Based on the information in the chart,

which
ecosystem most likely has the highest biodiversity?

A. W
B. X
C. Y
D. Z

Answers

Answer:

answer is B) x

Explanation:

i just took the quiz on edge

The chart shows information regarding the four ecosystems that has the highest biodiversity. As per the table ecosystem, X has the highest diversity. Hence option B is correct.

What is an ecosystem?

An exosystem is the system of ecological interaction of different environments and can be on land and in water. The system is dynamic and thus offers a wide range of species.

The ecosystem is thus a biodiversity hotspot and as per the table, the ecosystem X gets more of the high temperature and has s size square of 100 miles.

Find out more information about biodiversity.

brainly.com/question/11542363

look at pic and answer please

Answers

Answer:

Chemical change

Explanation:

Answer:

chemical

Explanation:

Please help!

In four o'clock flowers, red petals express incomplete dominance over white flowers. Which of the following pictures represents a cross between two pink flowers?


Click on the picture of the flowers until you see the correct answer.

Answers

Answer:

I know the first and second picture is wrong, not sure what the right one is. Hope this helps some

Answer:

i believe the third pic is correct :)

Explanation:

which is a biotic limiting factor that would influence the growth of a deer population?
A. amount of plant growth
B. high temperatures
C. amount of monthly rainfall
D. a Forest fire​

Answers

Answer:

The answer would be "A"

Explanation:

A biotic limiting factor includes things like food, availability of mates, disease, and predators. Deer being herbivores, their food supply would be determined by plant growth.

Have a blessed day! Please mark brainliest if correct! :D

Number of plants is a biotic limiting factor that would influence the growth of a deer population. Temperature, rainfall, and forest fire are the abiotic factors which influence the population growth. Thus, the correct option is A.

What is Population growth?

Population growth is the increase in the number of organisms on Earth. For most of the organisms, population size was relatively stable. But with the change in the factors such as biotic factors and abiotic factors such as energy, food, water became more available and reliable.

The change in population size depends upon four main factors which are fertility rates, mortality rates, the initial age profile of the population and migration.  

Therefore, the correct option is A.

Learn more about Population here:

https://brainly.com/question/27991860

#SPJ6

Cells that do not have clearly defined nucleus and no organized chloroplasts, mitochondria, or other organelles are
O Eukaryotic
ukaryotining
O Prokaryotic
Plants
O Fungi
Animals

Answers

Answer:

One of the main differences between prokaryotic and eukaryotic cells is the nucleus. Prokaryotic cells lack an organized nucleus while eukaryotic cells contain membrane-bound nuclei (and organelles ) that house the cell's DNA and direct the synthesis of ribosomes and proteins.

What did microspheres evolve from?

Answers

Answer:

Sidney W. Fox.

Explanation:

Fox went on to create microspheres that he said closely resembled bacterial cells and concluded that they could be similar to the earliest forms of life or protocells. Hope this helped :)

You identify two different fish that you suspect are two different species. Design an experiment to test whether or not these fish are two different species AND how they became two different species. Be sure to explain how the results of your experiment would support your conclusion.

Answers

Answer: First, I would lay Out Both Fish, Identify ALL Differences - And Similarities Between Both Fish, Colors... Skin Material. Then Do as Much Re-Search Online. Find all Details About the Fish, Including They're Environments. (This came From My Mind... Hope its Right)

Explanation: Mark Brainlist Pleasee

Answer:  I would first take samples of each fish to visually compare physical traits. Assuming this could be a type of speciation, I would research the differences within their shared environment such as food sources, habitat locations, mating rituals, and foraging preferences. Online I would research histories for reproductive isolation, monophyletic groupings, and the absence of allopatric divergence. To prove my theories, I would take several local random samples of the same two species and collect all types of shared trait data. Based on the data gathered, I would determine whether it was likely that they are related.

Explanation:

A flu virus can remain infectious on surfaces such as desk and doorknobs for long periods of time how does the ability of the flu virus to remain infectious on surfaces lead to high rates of the flu illness

Answers

Answer:

because the germs spread and when other people touch it and are carriers and they will probably get sick too

Explanation:

how does energy flow in this terrarium in terms of cellular respiration? I WILL MARK BRAINLIEST

Answers

Answer:

Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. Without oxygen, much less ATP would be produced.

all you need is in the photo
please answer fast
I give 70 points ​

Answers

Answer:

reproduction and attracting pollinators

Explanation:

think about it .think about a look at the flower where does the pollen and it come from on the flower.

Answer:

The  answer is reproduction and attracting pollinators

:)

:)

Explanation:

What is a broad explanation for a natural phenomena?​

Answers

Answer: Thing out of human control such as tornados and hurricane's

a human cell contains a very limited number of genes?​

Answers

Answer:

False

Explanation:

Put the levels of organization of an ecosystem in order from smallest (1) to largest (4).


community


ecosystem


organism


population

Helping who needs it-edge 2021

Answers

Answer:

sdasdasd

Explanation:

Answer:

Organism

Population

Community

Ecosystem

Explanation:

Sex cells divide to produce ___________________(sperm or egg).

Answers

Answer:

Egg

Explanation:

I think it a true answer

Answer:

Sperm in males and eggs in females.

Explanation:

Sex cells divide to produce both the sperm in males, eggs in females.

please help me please will give brainliest ​

Answers

Answer:

The answers are DNA contains genetic material and X-ray diffraction.

Explanation:

For question 3 the answer is DNA contains genetic material!!

Hershey and Chase used radioactive isotopes to label a bacteriophage. ... After allowing the bacteriophage to infect the bacteria, the presence of radioactive phosphorus in the bacteria confirmed that DNA was the genetic material found in genes!!

For question number 4 the answer is X-ray diffraction!!

X-ray crystallography

Taken in 1952, this image is the first X-ray picture of DNA, which led to the discovery of its molecular structure by Watson and Crick. Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule.

Hope this helps!! ;)

10. Compare animal and plant cells.

Answers

Animals cells have a mitochondria, plant cells have a vacuole, a chloroplast and a cell wall for protection.

Darwin met with many farmers who bred animals and plants to enhance
them form farming. this led Darwin to come up with what idea?
A.Natural selection
B.Artificial selection
C.Survival of the fittest
D.Use and disuse

Answers

Answer:

I think Its natural selection because its when they produce more offspriing. Hope this helps lol :)

Explanation:

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