The charge of Fe in Fe₂O₃ is +3.
Let's consider the equation for the thermite reaction:
Fe₂O₃ + 2 Al ⇒ Al₂O₃ + 2 Fe
One of the reactants is ferric oxide, we can calculate the charge of Fe in Fe₂O₃ considering that:
The sum of the charges of the atoms is equal to the charge of the compound.The charge of a neutral compound is 0.The charge of O in oxides is -2.The charge of Fe in Fe₂O₃ is:
[tex]2Fe+3O = 0\\2Fe+3(-2)= 0\\Fe=+3[/tex]
The charge of Fe in Fe₂O₃ is +3.
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Explain why amylase will not speed up the breakdown of proteins
Answer:
Amylase will not speed up the breakdown of proteins because it is the enzyme used for the breakdown of carbohydrates. Its active site will not fit the substrate of a protein molecule. To speed up the breakdown of proteins, protease is used insted.
HELP NEED ANSWER IN AT LEAST 5 MINUTES.
Which of the following criteria do scientists use to classify something as living? O Reproduce O Made of one or many cells O Grows All of the above
Answer:
Reproducir
Explanation:
if a red plant is crossed with a white plant and the offspring is pink, what is it called ?
Answer:
Incomplete dominance is an example of a non-mendelian trait (doesn't follow the genetic rules established by Gregor Mendel). When two parents mate and produce offspring, the offspring is a blend of the two parents. So, a red flower and a white flower would make a pink flower.
Which of the following correctly orders events during mitosis?
a) Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.
b) The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
c) The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.
d) The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
The answer option which correctly orders events during mitosis is: D. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
Mitosis can be defined as a type of cell division (duplication) through which a single or one (1) parent cell produces two (2) genetically identical daughter cells.
In Biology, duplication division refers to a process in which two (2) genetically identical daughter cells produced by one (1) parent cell have the same number of chromosomes as their parent cell.
Furthermore, the correct order (sequence) of events during mitotic division in living organisms include the following:
1. The mitotic spindle (spindle fibers) of microtubules attaches to chromosomes.
2. The chromosomes found in a sex cell are organized by microtubules.
3. The nuclear membrane is then dissolved.
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Answer: it is b
Explanation:
1. Convection current causes the lithospheric plate to
A. move slowly but constantly
B. move faster
C. move in any direction
D. create another plate
______________________
HOPE IT HELPS YOU
CAN YOU BRAINLEST ME
Please hurry its timed
Answer:
I feel like its combustible
Explain why energy from the sun is essential for the cycling of nutrients
Answer:
light energy is needed in photosynthesis or else the plant will die. no light no starch no starch no life rip
why fertilizer is important
Answer:Fertilizers provide crops with nutrients like potassium, phosphorus, and nitrogen, which allow crops to grow bigger, faster, and to produce more food. To grow, plants require nitrogen compounds from the soil, which can be produced naturally or be provided by fertilizers.
Explanation:
Population Dynamo
1
A population of alligators lives in a wetland habitat. Which of these describes a density-dependent factor that could affect this
population?
OA. A drought that lasts for several months occurs.
ОВ.
A hurricane passes through the area.
OC. Humans introduce pollutants into the water of the ecosystem.
OD
There is a decrease in prey animals in the ecosystem.
Reset
PLEASE NEED HELP
Submit
Answer:
D) there is a decrease in prey animals in the ecosystem
Explanation:
a density dependent factor is one of the following:
dieses
competition
predation
only one makes sense answer is D)
1) Why does the addition of dideoxynucleotides to the DNA sequencing reaction cause DNA synthesis to stop after the modified nucleotide is added?
A)Because once a modified nucleotide is incorporated into the DNA, there is no free 5'OH group to attach the next nucleotide being added.
B)Because once a modified nucleotide is incorporated into the DNA, there is no free 3'PO4-group to attach the next nucleotide being added.
C)Because once a modified nucleotide is incorporated into the DNA, there is no free 3'OH group to attach the next nucleotide being added.
D)Because once a modified nucleotide is incorporated into the DNA, there is no free 5'PO4-group to attach the next nucleotide being added.
In Sanger sequencing, once a modified nucleotide is incorporated into the DNA, there is no free 3'OH group to attach the next nucleotide being added. This phenomenon is useful to sequence a polynucleotide chain.
Dideoxynucleotides (ddNTPs) are nucleotide inhibitors of the DNA polymerase, it is for that reason that they are used in Sanger sequencing.
The ddNTPs are similar to natural deoxynucleotides used by cells during ADN replication; however, ddNTPs lack a hydroxyl (OH) group on the 3’ carbon of the deoxyribose.
In consequence, once a ddNTP is added, DNA synthesis cannot progress, thereby this phenomenon can be used to determine the order of nucleotides during the elongation of a polynucleotide DNA chain.
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A white rooster (WW) is crossed with a black-and-white-speckled hen (Ww).
The hen lays eight eggs. Draw a Punnett square to show the possible genotypes of
the chicks that will hatch.
Answer:
The genotypes are shown in purple
Hope this helps!
A white rooster (WW) is crossed with a black-and-white-speckled hen (Ww).
The hen lays eight eggs.
What is incomplete dominance?Incomplete dominance is a form of Gene interchange in which both alleles of a gene at a locus are somewhat expressed, often resulting in a medium or separate phenotype.
It is also known as partisan dominance.
For Example in roses, the allele for red colour is dominant over the allele for white colour.
Thus, A white rooster (WW) is crossed with a black-and-white-speckled hen (Ww).
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BRAINLIEST FIR RIGHT ANSWERS, WHAT SHAPE AND WHY?
4. Hydrogen cyanide (HCN) is a colorless gas. It is poisonous and smells like
almonds. On a piece of scratch paper, draw a Lewis structure for this compound. (you
do not need to show the picture)
Using that drawing, explain what shape you think this molecule is and WHY you
think it would be this shape. (4 points)
it would be an oval because the
A/
ORI
Answer:
Explanation:
Hydrogen cyanide (HCN)
The molecular geometry of HCN is linear. The compound is polar in nature.
As Carbon is bonded to two atoms, it follows the molecular geometry of AX2. And as per VSEPR theory, molecules covered under AX2 have a linear molecular geometry.
Hence Hydrogen Cyanide has linear molecular geometry.
Red bone marrow only differs from yellow bone marrow because of a difference in the amount of which substance?
the amount of antibody
the amount of cytokine
the amount of antigen
the amount of fat
Answer:
The amount of fat
Explanation:
There are two types of bone marrow: red and yellow. Red marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets. Yellow marrow is made mostly of fat.
Answer:
the amount of fat
Explanation:
took the test :)
Biology 3.01
1. What differences can you see when you compare the nucleus of a dividing cell with that of a non-dividing cell?
Answer:
chromosomes will be seen in the nucleus of the dividing cell because they are visible when a cell is dividing apposed to non-dividing cells.
Explanation:
Answer:
chromosomes will be seen in the nucleus of the dividing cell because they are visible when a cell is dividing apposed to non-dividing cells.
Explanation:
Jane is doing an experiment to find out how the size of a bowl affects the growth of the goldfish living in that bowl. She has three identical goldfish. She puts them in three bowls of different sizes. Every day, Jane looks at the goldfish in each bowl. In addition to looking, what should she do?
Answer:
maybe she should feed the gold fish
She should change the water she should change the container to see the change 'cuz there will be a change.
Answer:
C: Record her observations each day
Explanation:
I got it correct.
please help me with this i’ll give brainlist
Answer:
(a) base
none of the other make sense
What are the four different variations of bacteria?
Bacteria are classified into five groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters. Bacteria are found in every habitat on Earth: soil, rock, oceans and even arctic snow.
What does mRNA do?
1. carry
carry coded message from the genes to the ribosomes where proteins are built
2. carry amino acids to the ribosomes
3. make up ribosomes
4. help with RNA splicing
Answer:
The answer is 1. Carry coded message from the genes to the ribosomes where proteins are built.
Explanation:
mRNA stands for messenger RNA, so 1 would be correct.
Hope this helps!!
What are the causes of antibiotic resistance?
Answer:
Over-prescription of antibiotics.
Patients not finishing the entire antibiotic course.
Overuse of antibiotics in livestock and fish farming.
Poor infection control in health care settings.
Poor hygiene and sanitation.
Explanation:
Which of the following is an extremely dense form of connective tissue?
Answer:
the breast tissue
Explanation:
Tendons and Ligaments are the extremely dense form of connective tissue.
What are dense connective tissues?Dense connective tissue is also known as dense fibrous tissue which is a form of connective tissue composed mostly of fibers. These fibers are made of type I collagen which are rows of fibroblasts, the fiber-forming cells that make up the fibers, filled in between the collagen strands.
Tendons and ligaments are strong, rope-like structures which is formed by dense connective tissue where tendons connect skeletal muscles to bones, while ligaments connect bones at joints.
Ligaments have more elastic fibers which are more extensible than tendons. This connective tissue is found in the lower layers of the skin known as Dermis, where it is structured in sheets.
Thus, Tendons and Ligaments are the extremely dense form of connective tissue.
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#SPJ2
is cloud and moisture the same
no, it can definitely get in the cloud
Answer:
I'm pretty sure that clouds and moisture are not the same thing
Explanation:
HELP WILL GIVE BRANLIEST
Answer:
Respiration removes oxygen from the atmosphere, and photosynthesis puts oxygen into the atmosphere.
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
5.202/0.45
please explain out how to get the answer
Answer:
use a calculator I'm a genius
Explanation:
do you mean you don't know how to figure out the question? or you don't know how to divide decimals
Answer:
11.56
Explanation:
___11.56
450 | 5202.00
-450
702
-450
2520
-2250
2700
-2700
0
PA answer plss
Tama o Mali
1.nang bubbly NG kapwa
Answer:
mali
Explanation:
masama po ang mang bully ng kapwa natin
Answer:
*bully?? Mali,kase di dapat binubully Yung kapwa
Have you ever saved someone's life?
Answer:
yes a cats live I saved her because a truck almost hit her
★ « Have you ever saved someone's life? » ★
I'm being honest and my answer is no because no one's life is in danger beforWhat make Eukaryotic cells different from Prokaryotic Cells?
Group of answer choices
Eukaryotic cells have membrane bound organelles and more complex structure
Eukaryotic cells do not have a nucleus and are unicellular
Eukaryotic cells all have cell walls and include bacteria and plants
Eukaryotic cells are mainly bacteria
Answer:
Eukaryotic cells have a membrane bound organelles and more complex structure
Explanation:
What is the most complex level of organization in living things
Answer:
the biosphere
Explanation:
The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
12. What is true of a chemical change?
A.
C.
They do not create new substances
It cannot be seen on the molecular
level
B.
It cannot be smelled
D.
The do create new substances
Answer:
D
Explanation:
many chemical changes can be smelled, or heard, etc. And can be seen on a molecular level. Chemical changes create new substances:
Na + Cl = NaCl
when you open a solid room air fresher the solid slowly loses mass and volume. how do you think this happens
What effect did meteor strikes have on the early
formation of Earth's crust?