Taking into account the definition of Avogadro's number, 2 moles of Fe(NO₃)₂ contains 1.2046×10²⁴ molecules.
Avogadro's NumberAvogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance.
Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.
Amount of moles in this caseIn this case, you have 2 moles of Fe(NO₃)₂.
Then you can apply the following rule of three: If 1 mole of the compound contains 6.023×10²³ molecules, 2 moles of the compound contains how many molecules?
amount of molecules= (6.023×10²³ atoms× 2 moles)÷ 1 mole
amount of molecules= 1.2046×10²⁴
Finally, 2 moles of Fe(NO₃)₂ contains 1.2046×10²⁴ molecules.
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Does anyone know how to do these 2?
Answer:
use this
Explanation:
dude dont get mad at me
______ is the transfer of energy through spaces as electromagnetic waves in all directions?
A. Conduction
B. Radiation
C. Fission
D. Convection
Answer:
electromagnetic radiation Transfer of energy by electromagnetic waves across space or through matter.
Answer:
radiation
Explanation:
The number of atoms gained lost or shared by an atom in a chemical bond is also known as
A it's charge
B it's atomic number
C it's valency
D its mass number
Which types of plant cells must receive glucose from other plant cells?
Answer:
While plant cells have chloroplasts to photosynthesize, they also require ATP for cellular functions, and do use oxygen to break down some of the sugar they produce in order to generate that ATP. They need mitochondria for this.
In particular, at night when there is no light, plants undergo cellular respiration since there is no sunlight to photosynthesize.
They do, however, produce far more sugar and oxygen through photosynthesis than they use up in respiration.
The type of plant cells that receives glucose from other plant cells are NON-PHOTOSYNTHETIC plant cells.
Photosynthesis is a group of metabolic reactions by which plant cells generate simple carbohydrates (i.e., glucose) and oxygen by using the energy from the sun, carbon dioxide and water.In consequence, non-photosynthetic cells cannot produce glucose and thus need to receive this nutrient from photosynthetic cells.An example of non-photosynthetic cells is the root cells found underground.In conclusion, the type of plant cells that receives glucose from other plant cells are NON-PHOTOSYNTHETIC plant cells.
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In a herd of beef cattle, the average yearling weight of all animals was 800 lb when corrected to a bull basis. Bulls and heifers kept for breeding weighed 1000 and 825 lb, respectively. The progeny of those individuals selected for breeding had an average yearling weight corrected to a bull basis of 845 lb. What is the apparent genetic control of the trait
Answer:
Explanation:
The trait is genetic and not dependent on environment. When a trait is dependent on the genetic component of the parental generation, the ability of the traits to be passed from a generation to another is high and this will be revealed in their resemblance with the parent. Hence, the case of the offspring with an average weight of 845lb.
If the trait is controlled or influence by the environment there will be a difference when the offspring is produce because until the same environment is given to the offspring the trait cannot be expressed.
Why do modern scientists use repeated
experiments to develop and test hypotheses?
Repeated experiments that show the same
results prove that scientific information will
never change
Repeated experiments that show the same
results are less likely to contain experimental
errors.
Repeated experiments that show the same
results guarantee that all scientists will agree
with the experimenter's explanations
Answer:
Alin dito ang madalas mong ginagamit sa social media
Answer:
Repeated experiments that show the same results are less likely to contain experimental errors.
Explanation:
Why do cells continue to divide in adult organisms?
Answer:
Although most of the tissues in adult organisms maintain a constant size, the cells that make up these tissues are constantly turning over. Therefore, in order for a particular tissue to stay the same size, its rates of cell death and cell division must remain in balance.
Explanation:
There are two main reasons why cells divide rather than continuing to grow larger and larger: The larger a cell becomes the more demands the cell places on its DNA. If the cell grows too large, it will have trouble moving enough nutrients and wastes across the cell membrane. Why does cell division remain important to an adult organism even after it is fully developed? It remains important because cells are renewed and wounds are healed in the process. When cells stop dividing to specialize in structure and function. When cells undergo programmed cell death.
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Classification of Living Things Practice
Identify the feature of life that is illustrated by each of the following statements.
"That boy shot up five inches in only one year."
"Our cat had a litter of kittens yesterday"
"My dog has become much less clumsy now that he is a year old."
4.
"Eat a good breakfast and you will be able to run longer"
"When that car pulled in the driveway, my cat ran to hide under the porch."
"That owl's night vision allows it to see the movement of mice on even the
darkest night."
7
"Single-celled organisms live in the pond behind school."
8
Your body normally maintains a temperature of 98.6°F.
9.
A giraffe uses its long neck to eat from the high branches of a tree.
5.
6
10.
A bear hibernates when it's cold,
How are government agencies like the local health department working to keep the public safe from the problem of HAB's?
Answer:
The local health departments work together with local water suppliers and act to monitor harmful algal blooms (HABs)
Explanation:
Harmful algal blooms (HABs) are produced by blooms of algae (phytoplankton), some of them may produce toxins that lead to illness/death in humans and marine organisms (e.g., marine mammals, fish, seabirds, etc). HABs represent a real concern for coastal areas. Cyanobacteria, also known as blue-green algae, may produce HABs both in fresh water and in marine water. Some of the most common causes that may lead to a HAB include the runoff of nutrients (especially those rich in nitrogen and phosphorus), high temperatures, a slow movement of water bodies, etc. The local health departments work to monitor these phenomena by collecting samples in order to analyze the state of the water (i.e., by identifying the presence of toxins, especially cyanotoxins) and give advice to local residents. For these purposes, it is generally required to analyze phytoplankton composition, especially the presence of accessory pigments to chlorophyll a (since these pigments represent good indicators for possible HABs).
PICK ONE ONLY FOR EACH ONE
1) harry potter, maze runner, divergent
2) blue, black, purple
3) Football , Basketball, soccer
4) pizza , tacos , soup
Answer:
divergent, black, football, tacos
Explanation:
Realiza un esquema de la clasificación de los nutrientes, y enliste los alimentos en los que consten características, dónde se encuentran y función
Answer:
Carbohydrates
Protein
Fat
Vitamin
Minerals
and Water
Explanation:
Carbohydrates
Carbohydrates are energy giving foods, sources are Honey, maize, rice and sweet fruits.
Protein
Protein is required for the growth, sources are meat, egg, fish, cheese and milk.
Fat
Fat is concentrated source of energy, sources are sesame and sunflower oils.
Vitamin
Vitamin is body building, sources are fruits.
Minerals
Minerals are also a kind a vitamin which is important for different functions of the body, sources are sodium, fluorine and potassium.
Water
Water is for hydration of the body, source is water
Difference between eukaryotic cells and prokaryotic cells.
I hope this helps you
........
Answer:
eukaryotic cells are those which have a membrane-bound nucleus that contains genetic material, as well as organelles that are also membrane-bound. Whereas, prokaryotes are cells that don’t have a nucleus or membrane-encased organelles.
Explanation:
hope it will help you !
Farmers have cultivated five different vegetable crops by artificially selecting for certain traits from the wild mustard plant. This table lists information about five different vegetables that originated from the wild mustard plant.
Broccoli- Suppression of flower development
Cabbage- Suppression of internode length
Kale- Enlargement of leaves
Cauliflower- Sterility of flowers
Kohlrabi- Enhancement of lateral meristems
Which statement is correct about the development of these vegetables through artificial selection?
A.
They resulted from a characteristic of the mustard plant that was changed or enhanced by the selective cultivation.
B.
They resulted from the exposure to extreme temperatures and ultraviolet sun rays.
C.
They were created over one generation when crossbreeding took place between two different varieties of vegetables.
D.
They stopped forming additional varieties at the end of a growth cycle.
Answer:
A
Explanation:
because the farmers selected certain traits to propagate
using the count data and observational data you acquired calculate the number of cfus in the original sample
Answer:
cuales son los datos ?
Explanation:
cuales son los datos
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Explain how each type of infectious agent (bacteria, virus, fungi, and parasite) affects the body.
Answer:
bacteria-Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese. But infectious bacteria can make you ill. They reproduce quickly in your body.
Virus-A virus infects your body by entering healthy cells. There, the invader makes copies of itself and multiplies throughout your body. The new coronavirus latches its spiky surface proteins to receptors on healthy cells, especially those in your lungs.
fungi-When fungal organisms enter the body and the immune system is compromised these fungi grow, spread and invade into tissue and spread locally. Some organisms, especially yeast and some molds, can invade the blood vessels and cause infection in the bloodstream and distant organs.
Parasite-When the worms live in the body they can cause sickness. They may get into the stomach and gut and eat the food before the body has digested it. This means that the body does not get enough nourishment. Sometimes the worms will find their way into other parts of the body, such as the blood or liver.
What are some agents of mutation that can affect the genes of humans? (Choose all that apply)
failure of repair by ligase
codon errors
poor nutrition
ionizing radiation
Answer: The correct answers are "ionizing radiation", "codon errors" and "failure of repair by ligase"
Explanation:
I took the test
Some agents of mutation that can affect the genes of humans are ionizing radiation and codon errors as well as failure of repair by ligase.
What is genetics?Genetics has been known as the study of the heredity as well as the variation of the inherited the characters and the genetic properties and the organism's feature and the characteristics. It has been also known as the branch of biology that has to deal with the study of genetic variation, genes, and the heredity in the organisms.
The main function of the DNA has to carry the information from one generation to the another generation this has been the reason due to which DNA has been also known information molecule.
The main function of mRNA has to work as the immedieter between the protein and DNA which has been utilised by ribosome for the process of direct synthesis of protein, and the function of tRNA has to carry the accurate amino acid to the proteins synthesis site which takes place in ribosome.
Therefore, Some agents of mutation that can affect the genes of humans are ionizing radiation and codon errors as well as failure of repair by ligase.
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2. Which hormone stimulates the removal of sugar from the blood?
a. Glucose
b. Insulin
c. Glycogen
d. Glucagon
Answer:
Glucagon
Explanation:
Glucagon works along with the hormone insulin to control blood sugar levels and keep them within set levels. Glucagon is released to stop blood sugar levels dropping too low (hypoglycaemia), while insulin is released to stop blood sugar levels rising too high (hyperglycaemia).
The predominant plants found in the savanna are grasses, and there are only a few isolated or small clusters of trees. Which abiotic factor helps to maintain the savanna as a grassland rather than a forest?
A Loose Soil
B Abundant rainfall
C warm temperatures
D lightning Fires
PLEASE HELP
Loose soil is the abiotic factor which helps to maintain the savanna as a grassland rather than a forest. Thus, the correct option is A.
What are abiotic factors?Abiotic factors are those components of the ecosystem which are non-living. Abiotic factors include soil, temperature, rainfall, fire, etc.
Savanna is a biome which contain predominantly grasses with a few isolated or small clusters of trees in the ecosystem. The loose soil in this biome is mainly responsible for maintaining savanna as a grassland rather than a typical forest.
Loose soil is an abiotic factor which is responsible for the forestation of an ecosystem. It is difficult for the big trees to hold the loose soil whereas the grass have their perennating organs protected below the surface of the soil. Thus, they are favored in the savanna biome.
Therefore, the correct option is A.
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Project: Earths layers
Answer:
here hope helps
Explanation:
Explain how potential energy and kinetic energy change as a roller coaster around the track
Answer:
beacuse of the ups and downs
Explanation:
Answer:
up, down
Explanation:
How can you use what you know about chemical reactions to explain what happens to food molecules when you eat?
Answer:
Chemical digestion involves the secretions of enzymes throughout your digestive tract. These enzymes break the chemical bonds that hold food particles together. This allows food to be broken down into small, digestible parts.
Explanation:
What gas is broken down in the Calvin Cycle
Answer:Carbon dioxide
Explanation:
Explanation:
carbon dioxide molecules
7. A man sitting outside a restaurant on a park bench is smoking a cigarette while reading a newspaper. Which answer best describes the mutagen to which the man is exposed?
O The newspaper
The cigarette
The oxygen he is breathing
The park bench
Put "Evolution of Populations" in a sentence
Answer:
animals are examples of evolution of population
Explanation:
1. ATP-ADP cycle talks about energy and has two types; potential energy and kinetic energy. The energy in motion is?
A. Both potential and kinetic energy C. Kinetic energy only
B. Potential Energy only D. none of the choices
2. This is the capacity to do work.
A. Potential Energy C. Chemical Energy
B. Energy D. all of the above
3. What is the product of photosynthesis?
A. Glucose C. Glucose and carbon dioxide
B. Oxygen D. Glucose and oxygen
4. Mitochondria : cellular respiration : : chloroplast : ___________
A. Calvin cycle C. Krebs cycle
B. Chemiosmosis D. photosynthesis
5. From where are heterotrophs directly obtain its energy?
A. the sun C. eating other organisms
B. the sun and eating other organisms D. simple chemicals in the environment
6. NADH & FADH : cellular respiration : : NADPH : ___________
A. phosphorylation C. glycolysis
B. redox reaction D. photosynthesis
7. Light-dependent reaction : energy formation : : Calvin cyle : __________
A. stroma C. ATP synthesis
B. Krebs cycle D. glucose synthesis
8. In the light dependent reaction, what is the first role of the captured energy from photon?
A. to split a water molecule C. to synthesize glucose
B. to energize the electrons D. to produce ATP
9. Plants produce oxygen as a by-product when they photosynthesize. Where is the oxygen come from?
A. from the electron transport chain C. during ATP synthesis
B. by splitting water molecules D. by the chlorophyll
10. Where in the plant cell Calvin cycle take place?
A. thylakoid membrane C. granum
B. thylakoid space D. stroma
11. Which statement correctly describe carbon fixation?
A. the production of carbohydrate molecules from G3P C. the formation of RuBP from G3P molecules
B. the conversion of CO2 to an organic compound D. the use of RUBISCO to form 3-PGA
SOMEONE PLEASE HELP ME WITH THIS I REALLY NEED HELP I WILL GIVE BRAINLY IF U GET IT RIGHT
I would say C is the answer
All geologic eras are about the same number of years.
True or false
Answer:
false
Explanation:
What happens during S phase?
Answer:
DNA is replicated
differentiate between thallophyta bryophyta and tracheophyta
Answer:
The main difference between Thallophyta Bryophyta and Pteridophyta is the organization of each phylum. Thallphyta consists of algae, fungi, lichens, and cyanobacteria. The plant body of Thallophyta is a thallus. ... The plant body of bryophytes is not differentiated into true stem, roots, and leaves.
Explanation:
DNA fingerprint can be obtained from… (check all that apply)
Answers:
the pattern on a finger
hair with follicle attached
skin
blood
hair with no follicle attached
Answer:
Did u really delete mine so u can get credit wow you're crazy
Explanation:
