Answers
Answer: D,A,,B,D,D
Explanation:
Related Questions
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:
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.
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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hi can someone pls help me
Answers
Answer:
B
Explanation:
What is the answer for 25
Answers
Answer:
When a catalyst is present in a biochemical reaction, what is not expected is that the reaction requires more energy than normal (option b).
Explanation:
A catalyst is a substance used to facilitate a chemical reaction, decreasing the reaction time. Unlike a reagent, the catalyst retains the same amount of mass at the end of the reaction.
In a biochemical reaction, the use of a catalyst not only accelerates the reaction, but also decreases the amount of energy required by the process. An example of a biological catalyst is enzymes, specialized proteins that facilitate metabolic reactions.
The other options can be expected with the use of a catalyst, due to:
a. One of the functions of the catalyst is to decrease the amount of energy needed in a reaction.
c. Catalysts are substrate specific.
d. Catalysts work in a specific pH range.
16. ) A ___ is the structure that contains the DNA of the cell.
a.) centrosome
b.) chromosome
c.) centromere
d.) vacuole
e.) centriole
Answers
Answer:
the closest answer is b.
Explanation:
The nucleus contains most of the DNA in a cell and this DNA is called the chromosomal DNA.
Each chromosome is constructed from DNA that has been tightly wound around proteins called histones numerous times to support its structure. Thus, option B is correct.
What is the role of chromosomes?DNA, the cell's genetic material, is kept in the nucleus. In the nucleus, DNA is often found wrapped up and linked to a variety of histone proteins in a structure called chromatin that is loosely contained.
Chromatin coils tightly and condenses to produce chromosomes just before a cell divides. A DNA molecule called a chromosome is where an organism's genetic code is located.
When a cell is not dividing, chromosomes cannot be seen in the nucleus, not even under a microscope.
Therefore, a chromosome is the structure that contains the DNA of the cell.
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What would happen to an ecosystem if the biomass of primary consumers was higher than the biomass of producers?
Answers
Answer:
It would be destroyed soon...!
Explanation:
Which best describes the following impacts: water storage, clean energy, and flood prevention?
Answers
Answer: Positive impacts of dams on society
Explanation: I just took the quiz ;)
Answer:
D. positive impacts of dams on society
Explanation:
E2020 other dude was right
How might the descruction of rainforests affect the balance of gases in Earth's atmosphere?
Answers
Answer:
If you destroy rainforests, there will be less oxygen in the air and more carbon dioxide. Trees and plants produce oxygen so that is why.
Explanation:
Answer:
a
Explanation:
12. What are the top 3 most common new case cancer types? What are the top 3 most
common causes of death cancer types?
Your answer
PLEASE HELP ASAP
Answers
Answer:
Breast, Colorectal and Lung cancers are the most common. Smoking and Tobacco. Diet and Physical Activity. Sun and Other Types of Radiation are the most common causes of cancer.
Explanation:
I think this is what you need, if not could clarify a bit more in the question.
Which of the following is a function of the cell membrane?
Answers
Answer first option
Explanation:
how many neutrons does oxygen have?
Answers
Answer:
Oxygen has eight neutrons
Answer:
they have 8 neutrons
Explanation:
please help me if you can right answers please
Answers
forensic science question
During which stage of postmortem decomposition do the eyes first become cloudy?
a. dry decay
b. initial decay
c. putrefaction
d. black putrefaction
Answers
Answer:
Initial Decay
Explanation:
Usually happpens around 2-3 hours after death
Answer:
B. Initial Decay
A student wants to create a liquid volcano. The student observes bubbles in the soft drink prior to opening it.
The student first proceeds to open the soft drink bottle and place it on the floor.
Next, the student drops candy tablets into the drink using a rolled piece of paper so that the tablets are able to fall into the drink continuously. The student notices a very powerful reaction as the drink fizzes and starts to bubble.
In this scenario, what would be the catalyst?
Answers
Answer:
b
Explanation:
Answer:
The candy tablets being added to the drink. (A)
Explanation:
edge 2020
Compare and contrast DNA and RNA in terms of structure and nitrogenous bases.
Answers
Answer:
Explanation:
DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
pleaseee helppp!!!! please and thxxx:)
Answers
Answer:
Prokaryotic Cells are single celled, Do not have a nucleus and do not have organelles (mitochondria etc). Their DNA are stored in the cytoplasm. Eukaryotic cells have a nucleus that contains DNA. They have organelles and exist in more than one types of organisms.
Explanation: Plz give me a brainliest, thanks
what goes in light independent
Answers
Answer:
- Captures energy from sunlight
- Takes place within and across the membrane of the thylakoids.
Select the correct answer.
Which condition is required for viruses to reproduce?
A.
They must enter another virus structure.
B.
They must enter the cell of another organism.
C.
They must come in contact with water.
D.
They must encounter a virus with genetic material different from their own.
Answers
They must enter the cell of another organism so they can insert their RNA into the hosts DNA and reproduce. They are rather parasitic in that regard.
Answer:
B. They must enter the cell of another organism.
Explanation:
I got it right on Plato.
what's the difference between budding and binary fission in reproduction of organisms
Answers
Answer:
Budding is found in eukaryotes. The main difference between binary fission and budding is that duringbinary fission, parent organism isdivided into two daughter organismsby evenly separating the cytoplasm whereas, during budding, a neworganism is formed from the existingorganism by sprouting out.
True or False? Toxins accumulate in the tissue of organisms
Answers
false I think or it's true
Explanation:
i don't think this is helpful srry
what is the difference between the hydrogen bonds holding the nitrogenous bases together in the DNA structure ?
Answers
Answer:
Explanation:
Chemical structures of the five nitrogenous bases are shown below. ... Adenine and guanine are purine bases found in both DNA and RNA. ... Nucleosides have slightly different names than their nitrogenous base parents, and depend upon
Explain how wind erosion might effect exposed rock
Answers
Answer:
Yo
Particles moved by wind do the work of abrasion. As a grain strikes another grain or surface it erodes that surface. ... As wind blows from different direction, polished flat surfaces create a ventifact. Exposed rocks in desert areas often develop a dark brown to black coating called desert varnish.
Hope it helps you.....
Explanation:
Which organelle stores genetic information? (4 points)
Chloroplast
Golgi apparatus
Nucleus
Ribosome
Answers
Answer: the nucleus
Explanation: think of it as the brain of the cell it holds all of the information to control the cell
Answer:
The nucleus.
Explanation:
The nucleus has very important roles to play. As it contains genetic material, it coordinates cell activities like protein synthesis and cell division.
What are the two different autotrophs and which is more common on our planet? PLEASE HELP!!
Answers
Answer:
Photoautotrophs use light energy to make food for themselves, and chemoautotrophs use chemicals energy in deep sea vents. Photoautotrophs are more common..
Explanation:
Someone just deleted my points and BRAINLIEST
Can someone help me please?!❤️
Answers
Answer: Oxygen produced by photosynthesis.
Explanation: Breathing things produce carbon dioxide while plants produce oxygen.
Answer:
You are right it is D.
Explanation:
You got it.
3. What was the first shoe he designed
Tinker
Answers
Answer:
Designs the Air Jordan 3, the first of his sneaker designs with Michael Jordan. The sneaker’s design and its popularity arguably saves Nike’s relationship with Jordan and keeps him from jumping to rivals Adidas.
Which part of an atom has no charge? *
proton
neutron
electron
nucleus
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how would a drug that increases sensitivity of cells to insulin help restore blood glucose homeostasis?
Answers
Answer:
Explanation:
Insulin helps the cells absorb glucose, reducing blood sugar and providing the cells with glucose for energy. When blood sugar levels are too low, the pancreas releases glucagon. Glucagon instructs the liver to release stored glucose, which causes blood sugar to rise.
What cell do mutations occur in that can be passed to offspring?
A. Blood cell
B. Nerve cell
C. Brain cell
D. Egg cell
Answers
Answer:
D
Explanation:
its D because i saw it in class
Answer:
D. Egg cell
Explanation:
Mutations can only occur in reproductive cells like Eggs Or Sperm
4. How do the finches on the different Galapagos Islands differ from each other?
Explain why.
Answers
b. Why is there a huge demand of professionals in the field of agriculture
Answers
Answer:
There is an increase in demand for higher quality and quantity of food and other products.
Explanation:
There is an increase in demand for higher quality and quantity of food and other products. So, there is a huge requirement for technological innovation. Investment is needed in research and development to develop crops that are pesticide-free, resistant to disease, and able to face various weather conditions. Vertical farming and carbon-capture technology can be used to meet growing world food demands.