A reaction requires 2.5 moles of zinc oxide, equal to 202.5 grams.
The mole scale is needed as an indication of the amount of substance or compound, mole is the gram of substance divided by the relative molecular mass (Mr). The formula for calculating the moles of a compound is n = gram/Mr
in question:
2.5 mol of zinc oxide: n = 2.5 mol
Mr zinc oxide : Mr = 81 gram/mol
Then grams of zinc oxide are:
n = grams/Mr
grams = Mr x n
grams = 81 grams/mol x 2.5 mol
grams = 202.5 grams
So, grams of zinc oxide is 202.5 gr.
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How is meiosis I different from meiosis II? What are the products of each? How do they relate to the parent cell or to mitosis?
Answer: Meiosis I is a Heterotypic division but Meiosis II is a Homotypic division. Meiosis I produces 2 Diploid cells and Meiosis II produces 4 Haploid cells. Both produce two daughter cells from each parent cell.
Draw a line representing the rise and a line Representing the run of the line. state the slope of the line in simplest form
-1 Define cell and cytology.
Help please -thanks!
Answer:
It is D
this shows that there was likely greater diversity during the time that is represented by that rock layer
it could also be random chance that those fossils ended up being fossilized in that location as fossilization is a random and rare occurence so this is usually corraborated with multiple locations
also remember that a mass extinction event can fit within as large of a window as over 100k years because dating isn't bang on and a large cataclysmic even could take a long time for it to effect the whole planet enough to cause a mass extinction
Explanation:
It is D
Because it shows that there was a greater diversity during the time that is represented by that rock layer , it could also be random chance that those fossils ended up being fossilized in that location as fossilization is a random and rare occurence so this is usually corraborated with multiple locations
Describe three abiotic and three biotic components of an ocean marine ecosystem, Please Help Now!!
Answer:
Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature. Sunlight is one the most important abiotic factors for marine ecosystems
Explanation:
Answer:
Biotic factors include plants, animals, and microbes; important abiotic factors include the amount of sunlight in the ecosystem, the amount of oxygen and nutrients dissolved in the water, proximity to land, depth, and temperature. Sunlight is one the most important abiotic factors for marine ecosystems
Explanation:
Write a Haiku about science please
Light and energy,
Electricity abound,
Generating life.
What does the prefix pseudo mean in the word pseudoscience?
false
subjective
systematic
factual
Hii!!! I believe the answer is A. False. (:
Write a hypothesis about how the interaction of tectonic plates may cause earthquakes.
Answer:
hope this helps
Explanation:
Techtonic plates interacting with each other would cause an earthquake because they are essentially the earth's foundation so by sliding together they would cause rockfall and make a rumble which is basically what an earthquake is and when they interact its basically the earth moving so it would cause shaking and rumbling which is what happens in an earthquake
(Additionally) in the aftermath of an earthquake the plates are either moving or settling down which is why frequently after an earthquake there is a mini one following it
Put "Polygenic Traits" in a sentence
Answer:
Polygenic traits are controlled by a number of separate genes.
Hope it helps! :D
Answer:
Polygenic traits are controlled by a number of separate genes
Explanation:
Hope this helps
What biome is most of the small islands
Which of the following does NOT involve a type of genetic modification?
a. production of spider web c. use of a malaria vaccine
b. production of human insulin d. bacterial transformation
Answer:
the answer would be B the production of human insulin
The photo shows a process called mosquito fogging.
What is one purpose of mosquito fogging?
O A To prevent people from getting stek from undercooked meat
Te treat people who have infeetiens caused by Viruses
e. Te eamy waste away from eities so people dont get siek
D. To kill insects that commonly spread diseases to people
Answer:
D. To kill insects that commonly spread diseases to people
Answer:
D. To kill insects that commonly spread diseases to people
Explanation:
Fogging is a technique used for killing insects that involves using a fine pesticide spray (aerosol) which is directed by a blower.
The nucleotide base sequence of a strand of DNA is TAC-CGG-AGT . What is the sequence of the complementary DNA strand ?
Answer: ATG-GCC-TCA
Explanation: A's pair with T's, C's pair with G's. In the complementary strand simply pair any T's with A's and vice verse and any C's with G's and vice verse
where is sucrose transported to in plants?
(name like either roots, leaves, where?)
Which organelles must work together to provide food and energy to a plant cell?
Answer:
Mitochondria are the working organelles that keep the cell full of energy. In a plant cell, chloroplast makes sugar during the process of photosynthesis converting light energy into chemical energy stored in glucose.
Chloroplast and mitochondria are organelles that must work together to provide food and energy to a plant cell.
Plants are living organisms that are capable of nourishing themselves from inorganic substances.
The complex chemical process by which they manage to do so is called photosynthesis and it takes place in chloroplasts.
Chloroplasts are elliptical-shaped organelles - their number varies between 20 and 100 in each plant cell - found in leaves and possessing the enzymatic machinery necessary to transform solar energy into chemical energy and, finally, into food.
The plant cell needs energy to grow and multiply and the mitochondria provide most of this energy by performing the last stages of the breakdown of food molecules.
Its main function is to supply the electron carriers (ATP), a product of cellular respiration, which provide the energy that the cell needs.
Therefore, we can conclude that within the leaves of plants, in the chloroplasts of plant cells, the chemical process that transforms inorganic matter into food takes place and the mitochondria are the energy-producing organelles.
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what is insomnia ?...
Answer:
sahi bol rahi hai ye ladki
Explanation:
I also think ,u lack ur sleep
Answer:
Insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not be able to get back to sleep.
Explanation:
describe one way in which the body gets rid of lactic acid
3. The ability to keep a stable internal environment is called
a. Metabolism
b. Reproduction
c. Homeostasis
Answer:
c)Homeostasis isthe ability to keep a stable internal environment is called
Answer:
C
Explanation:
Homeostasis is the maintenance of a stable internal environment. Homeostasis is a term coined to describe the physical and chemical parameters that an organism must maintain to allow proper functioning of its component cells, tissues, organs, and organ systems.
fault generally occurs at a transform boundary. O A. normal OB. strike-slip O C. thrust O D. reverse
Answer: Read the question carefully
TRANSFORM BOUNDARIES: B. Strike-Slip
Explanation:
A reverse fault happens at convergent boundaries.
A normal fault happens at divergent boundaries
Hope this helps :)
The fault that generally occurs at a transform boundary is a strike slip. Therefore, option B is correct.
What are transform boundary and strike-slip?A transform boundary is a type of plate boundary where two tectonic plates slide past each other horizontally in opposite directions. Transform boundaries are characterized by shallow and frequent earthquakes. The most famous example of a transform boundary is the San Andreas Fault in California, which marks the boundary between the Pacific and North American plates.
"Strike-slip" is a type of fault that occurs along a transform boundary, where two tectonic plates are sliding horizontally past each other in opposite directions. In a strike-slip fault, the movement is primarily horizontal and the rocks on either side of the fault move past each other parallel to the strike (or direction) of the fault. The San Andreas Fault in California is a well-known example of a strike-slip fault.
Hence, option B is correct.
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State the ascent of sap in brief help me and thank you
Answer:
Explanation:
The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from the root to the crown.
This map shows the counties in Montana that are prone to dam failure. If you were in charge of flood control in Montana, where would your biggest areas of concern be? What other data would you collect about these areas or about local weather patterns to help you make a flood-control plan for the state?
Answer:
The focus would be the western side of the state and several counties in the central part of the state because there are many high-risk dams in these areas. Knowing what communities and structures are located around these dams, the average precipitation rate, and projected rainfall totals would be helpful in designing a flood-control plan. Knowing the age and condition of each dam would be important for setting priorities in the plan.
all you need is in the photo
ASAP
Answer:
A B and C but not D
Explanation:
Moving from a Hight concentration gradient to a low concentration gradient means moving from an area where a substance in quantity to an area where it is lower in quantity. D is the only one showing something to be moved against a concentration gradient because there are more squares inside the cell than outside the cell yet the squares are still being moved into the cell.
examples of green house gases
Answer:
Carbon dioxide
Methane
Nitrous Oxide
Explanation:
If the amount of CO2 in the atmosphere increases, do we expect to record an increase or decrease in the pH of the ocean? Why?
Answer:
As the atmospheric concentration of carbon dioxide above water increases, the acidity of the water will increase causing the pH to decrease.
What does the temporal lobe and Cerebellum do?
Answer:
The temporal lobes are also believed to play an important role in processing affect/emotions, language, and certain aspects of visual perception.
The cerebellum is busy planning, adjusting and executing movements of the body, the limbs and the eyes.
Explanation:
what would the chromosome to the right be called?
Answer:
The two identical chromosomes that result from DNA replication are referred to as sister chromatids. Sister chromatids are held together by proteins at a region of the chromosome called the centromere. Chromosomes undergo additional compaction at the beginning of mitosis.
Explanation:
Based on the position of centromere and length of chromosomal arms, the chromosomes are classified into 4 groups:
(1). Telocentric chromosomes.
(2). Acrocentric chromosomes.
(3). Sub-metacentric chromosomes.
(4). Metacentric chromosomes.
Tectonic plates can affect __________________ environmental changes, which might be a cause for species extinction
Answer:
I believe it is long term.
Explanation:
did it in edge 2020
Examples of decapods are
Answer:
Crabs, lobster, shrimp, etc.
Explanation:
What concept suggests that small bacteria were engulfed by larger cells to become mitochondria and help to self flourish and become a eukaryotic cell
Answer:
Endosymbiotic theory
Explanation:
The concept that hypothesized that small bacteria were engulfed by larger cells to become the mitochondrion and eventually become a eukaryotic cell is known as symbiogenesis or the endosymbiotic theory.
The endosymbiotic theory argues that organelles like mitochondrion and the chloroplast found in modern-day eukaryotic cells were formerly prokaryotic microbes. These microbes got ingested by primitive, amoeba-like eukaryotic cells that were first formed but instead of dying, the engulfed microbes found a way to symbiotically coexist with their hosts, eventually forming the organelles - aerobic microbes forming the mitochondrion and photosynthetic microbes formed the chloroplast.
what makes some melt? What happens to the particles in snow as it melts?