Which of the following is a chemical property of iron?
A. Iron corrodes in moist air.
B. Iron is soft when pure.
C. Iron melts at 1808 K.
D. Iron's density = 7.874 g/cm3

Answers

Answer 1

Answer:

A

Explanation:

Iron corrodes in moist air. When iron gets exposed to air, it reacts with oxygen molecules to form rust. Rust degrades the quality of iron. Therefore, methods of protection from rusting like, Barf's protection, Sacrificial protection etc. are carried out.

Answer 2

Iron corrodes in moist air is a chemical property of iron. Hence the correct option is A.

A chemical property of iron is its ability to corrode in moist air. Corrosion is a chemical reaction that occurs when iron reacts with oxygen and moisture in the air, resulting in the formation of iron oxide, commonly known as rust. This chemical property of iron is due to its reactivity with oxygen and can lead to the degradation and weakening of iron-based materials over time.

Corrosion is a chemical process that involves the reaction of a metal with its environment, typically in the presence of moisture or oxygen. In the case of iron, when it comes into contact with moist air, it undergoes a chemical reaction known as oxidation. This reaction causes the formation of iron oxide, commonly known as rust.

The corrosion process begins when iron reacts with oxygen in the air, a process called oxidation. This reaction leads to the formation of iron(III) oxide, which is commonly seen as the reddish-brown coating known as rust. The presence of moisture accelerates the corrosion process by providing the necessary medium for the reaction to occur.

Hence the correct option is A.

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Related Questions

Which would be the best evidence that a cell is using active transport to move a substance across its cell membrane

Answers

Answer: The DNA located in the nucleus of the cell.  ATP is being rapidly consumed near the cellular membrane.

Explanation:

help please (it's not biology its science but science wasnt a choice​

Answers

Answer:

Would it be 2. Because it has it in the beginning of the equation and in the middle.

Explanation:

On one show. Tyler learns that meerkats spend the late afternoon in their burrows. “They are so lazy!" he complains. James explains that meerkats rest in the shade during the hottest part of the day. That behavior keeps their body temperature from rising too high.​
a. getting food for energy
b. finding a living space
c.maintaining homeostasis
d. getting water to drink

Answers

Answer:

I hope this helps

Explanation:

getting food for energy

Burning question: is it possible for life to thrive on earth without soil?

Answers

Answer: No

We get many crops from soil. If we do not get enough crops, we will run out of food and may die. The answer is no.

Hope this helps you!

The Answer correct answer is No

Atoms of which three elements could bond together to form an organic compound?

a. oxygen, iron, and carbon

b. carbon, hydrogen, and oxygen

c. oxygen, hydrogen, and nitrogen

d. carbon, iron, and nitrogen

Answers

Answer:

Hello!!! Princess Sakura here ^^

Explanation:

It's B because organic compounds are molecules that contain carbon atoms bonded to hydrogen atoms and choice B is the only one that has both.

The three elements carbon, hydrogen, and oxygen make up more than 99 percent of organic compounds. Carbohydrates, lipids, and proteins are only a few of the chemical compounds that these three combine to create nearly all the chemical structures required for life.

What are the main constituents of  an organic compound?

Any of a vast group of chemical compounds known as organic compounds contain one or more carbon atoms that are covalently connected to atoms of other elements,

most frequently hydrogen, oxygen, or nitrogen. Carbides, carbonates, and cyanides are among the few carbon-containing substances that aren't categorized as organic.

Organic substances are made of carbon, hydrogen, and frequently oxygen or nitrogen. Given that they are linked to living things, organic chemicals are given that term.

Carbohydrates, lipids, nucleic acids, and proteins are a few significant categories of organic molecules.

Therefore, carbon, hydrogen, and oxygen together to form an organic compound.

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At which stage is glucose broken into smaller molecules? O before cellular respiration begins Oduring the first stage of cellular respiration during the second stage of cellular respiration Oat the end of cellular respiration​

Answers

Answer: The first stage of cellular respiration, called glycolysis, takes place in the cytoplasm.

Explanation:

In this step, enzymes split a molecule of glucose into two molecules of pyruvate, which releases energy that is transferred to ATP.

hope this helps!

During cellular respiration, the lysis of glucose is the first step for the oxidation of glucose, hence option B is correct.

What is cellular respiration?  

Cellular respiration is the process through which cells get energy in the presence of oxygen from organic molecules and release carbon dioxide as a by-product.

There are several steps for cellular respiration through which energy is extracted from the glucose, the first step glucose is breakdowns to convert into pyruvate and then this oxidizes through the citric acid cycle and produces electrons that generate ATP.

The breaking of glucose through glycolysis which is the first step of cellular respiration generates electrons that flow through the electron transport chain and generate ATP as the cellular energy product.

Therefore, glucose is broken into smaller molecules in the first stage of cellular respiration.

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Did newton say all living things were made of cell

Answers

Answer:

No

Explanation:

He improved microscope because he developed a theory that explained how light moved.

Answer:

No, Theodor Schwann said "all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells."

Explanation:

Which statement best describes the role of transfer RNA in protein synthesis?
O Transfer RIHA carries a copy of the DNA base sequence to the cytoplasm.
O Transfer RNA matches up amino acids with the base sequence copied from DNA.
O Transfer RNA composes the ribosome on which the protein forms.
O Transfer RNA brings nucleotides to make a copy of the DNA base sequence.

Answers

Answer:

Transfer RNA matches up amino acids with the base sequence copied from DNA.

Answer:

B.

Explanation:

Edg. 2020 other guy is correct

Explain what is required for natural selection to take place

Answers

Answer:

Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.

Explanation:

hope this helps

Which of the following is a MECHANICAL wave vibration? * O Sound waves O Light waves O Radio waves O Reflection​

Answers

Answer:

An example of vibration by mechanical waves is sound waves.

Explanation:

Mechanical waves are those capable of transmitting energy, which can propagate in the same direction, resulting in an alteration of the mechanical properties of a material. As a result of this, the material presents changes in the energy of its atoms and molecules.

Sound waves are mechanical waves, which require a medium for transmission and act as elastic waves capable of propagating longitudinally, producing a vibration.

Sound propagates and can produce waves in water or vibrations that reach the eardrum and enable the reception of this sound.

    The other options are not correct, because light and radio waves are electromagnetic waves that are transmitted in a vacuum, without producing vibrations. Reflection is a property of light.

Which statement best summarizes describes cell theory?

Answers

Answer:

what are the statements?

Explanation:

the cell theory is that all living organisms are made up of cells and all cells come from cells

what is a phylum is made up of many different _____

A. orders

B. families

C. classes

Answers

Answer:

orders. it sounds like the best answer.

Explanation:

Answer:

C. classes

Explanation:

Which phrase describes a typical feature of plains?
usually have a high relief
O have steep sides
usually have a high elevation
can be interior

Answers

Answer: the answer is D or can be interior

Explanation: because I took the test and I picked have Steep sides and it's wrong hi relief is wrong and high Evolation is wrong so in conclusion D is your answer

Hope this helps!

The phrase that describes a typical feature of plains is that it can be interior. Thus, the correct option for this question is D.

What do you mean by Plains?

Plains may be defined as a type of landform that has a broad area of relatively flat land. These are one of the most common types of landforms on the earth's surface. They significantly cover more than one-third of the world's land area. Plains exist on every continent.

According to the context of this question, mountains are landforms that usually have a high relief and a high elevation. A canyon has steep sides along with narrow valleys. So, plains are the landforms that significantly have an interior and flat land.

Therefore, the phrase that describes a typical feature of plains is that it can be interior. Thus, the correct option for this question is D.

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In eukaryotic cells, cellular respiration (aerobic) occurs in the _____
Nucleus
Chloroplast
Mitochondria
Cell membrane
Cytoplasm

Answers

In the mitochondria

How are waves repeating patterns?

Answers

Answer:

A simple wave model has a repeating pattern with a specific wavelength, frequency, and amplitude, and mechanical waves need a medium through which they are transmitted. This model can explain many phenomena including sound and light. ... Waves can be used to transmit information and energy.

Explanation:

What would be a good name for a graph with this information?

Answers

Answer:

a bar graph

Explanation:

Answer:

a bar graph is the answer

The top layer of the crust is mostly what type of rock?
A igneous?
A metamorphic?
A sedimentary?
HeLP ASAP

Answers

Answer:

b is the correct answer i guess

Answer:

Igneous and Metamorphic covers 95% of the crust but there is a little bit Sedimentary, about 5%

Explanation:

Select the correct text in the passage. Nick owns a grocery store. Identify the various types of roots in his store that are a type of stem. Nick owns a grocery store. Considering the high demand, he orders carrots, ginger, radish and sweet potatoes in excess quantities. Later, a sandwich bar owner contacts him for placing orders for cabbage and lettuce in bulk quantities for his sandwich bar. Now he has almost total control of the cabbage and lettuce market. He also sells potatoes, taros, and other spices like cinnamon in his store,

Answers

Answer:

cabbage and lettuce

Explanation:

They are the only types of roots in his store that are a type of stem.

Answer:

Cabbage and lettuce

Explanation:

If you grow crops, like me you would know that Cabbage and lettuce are the stem of there plant. There unlike other plants that grow Off of stems I hope this helps!

Which pair of microscope views represents a eukaryotic cell and a prokaryotic cell?

Answers

Answer:

They can both be unicellular and multicellular

Explanation:

The difference between the two microscope views of an eukaryotic cell and a prokaryotic cell is that the eukaryotic cell appears to have a distinct nucleus and other organelles when viewed with a light microscope, whereas the prokaryotes do not.

What is the difference between eukaryotes and prokaryotes?

Eukaryotic cells have a distinct nucleus and other membrane-bound organelles, while these are absent in the prokaryotic cells, and the prokaryotic cells are smaller in size than eukaryotic cells due to the lack of organelles.

Hence, the difference between the two microscope views of an eukaryotic cell and a prokaryotic cell is that the eukaryotic cell appears to have a distinct nucleus and other organelles when viewed with a light microscope, whereas the prokaryotes do not.

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What is the meaning of Taxonomy?​

Answers

Answer:

It is a classification of something, especially organisms.

For example:

the taxonomy of these birds

This means the classifications of different types of birds

Hope this helps!

Answer:

I'm late but anyways i don't want the brainiest only a thank you

Explanation:

Taxonomy- is the scientific process of grouping living and non living things and organisms according to their specific groups

4. How are ocean trenches formed? (1 point)
Ocean trenches are formed when oceanic plate cools and moves to the surface of the ocean.
Ocean trenches are formed when the denser oceanic late sinks.
Ocean trenches are formed when molten rock cools and solidifies.
Ocean trenches are formed when magma accumulates on the ocean floor.

Answers

Answer:

Ocean trenches are formed when the denser oceanic plates sink.

Explanation:

In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.

Analyze why it would be an advantage to a protein-secreting cell to have ribosomes on the endoplasmic reticulum.

Answers

Since ribosomes produce proteins, and the endoplasmic reticulum transports the proteins that the ribosome makes it is advantageous for a protein secreting sell to have ribosomes on the endoplasmic reticulum so that the proteins can be transported more quickly and efficiently

Active transport is the movement of molecules from

A.) Low to high concentration
B.) High to low concentration

Answers

Answer:

low to high concentration

Explanation:

assisted by enzymes and requiring energy

Answer is A

the movement of ions or molecules across a cell membrane, from a region of low concentration into a region of higher concentration, assisted by enzymes and requiring energy.

Scientists crossed two different species of fruit trees. This produced offspring whose fruit had characteristics of each parent.

What is most likely true about the offspring?

Answers

They will be able to produce offspring.

the answer is d They will be able to produce offspring.

Which image shows a landform with low elevation and low relief?​

Answers

Answer:

The one with clouds or c

Explanation:

because on ed that's the correct answer

Answer:

its c

Explanation:

Which organisms turn sunlight energy into food?

Group of answer choices

Baleen Whales and Toothed Whales

Krill and Fish

Phytoplankton, Seaweed, Eel and Turtle Grass

Penguins and Pelicans

Answers

The organism that turns sunlight energy into food is Phytoplankton, Seaweed, Eel, and turtle grass. They are all plants and even at the bottom at the ocean they find the little sunlight they can to grow.

Also all plants are produced so that is how the food chain starts!

The total energy in our universe -
A (will not change,but can transform to other types
B ( changes and expands over time)
C ( only changes forms once)

Answers

Option A sounds like the best choice hope that helps

Do the atoms that make up a rock move?

Answers

Yeah I think lol lol lol lol lol

what causes the tracks of long storms, such as Tropical Storm Isaias to curve?

Answers

Answer:

A lot of them curve out to sea." ... (Hurricanes are fueled by warm water as it evaporates off the sea.) In tropical latitudes, nearer the equator, prevailing wind patterns push storms toward the west, because of a high-pressure axis called the subtropical ridge, which extends east-west of the storms

Explanation:

Differentiate between the greenhouse effect and global warming

Answers

Answer:

The greenhouse effect is how heat is retained by the atmosphere due to greenhouse gases whereas global warming is the increase in average annual temperatures across the globe.

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