Answers
26.98 grms of aluminum where oxidized.
How do you find the mass of the product in a chemical equation?Mass of reactants equals mass of products. By inserting the word "moles" between each coefficient and formula, this equation can be read in "moles." A ratio of the moles for any two substances in an equation is known as a mole-mole factor.4Al + 3O2 \(\rightarrow\) 2Al2O3.
aluminum oxide. weight = 51 g
molar mass of the Al2O3. = 101.96 g/mol
No.of moles Al2O3 = 51/101.96 = 0.5 mol
from the balance equation we now that 4 mol of aluminum required to produce 2 moles of aluminum oxide.
since
2/4 =.5/ x
x= .5 *4/2 = 1 mole
1 mole Al is required.
i. e.
26.98 g Reqired.
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Related Questions
Why is photosynthesis being studied? Why is it important? How does it relate to climate change?
Answers
Answer:photosynthesis is the most important biochemical process in earth
Explanation: enables us to understand how the world functions as an ecosystem and how photosynthesis acts as a bridge between the non-living and living worlds
it's important because it's to convert solar energy into chemical energy and then store that chemical energy for future use.how it relates to climate change is because the rising levels of co2 in the atmosphere drive an increase in plant photosynthesis
Which elements are present in all organic compounds
Hydrogen and oxygen
Nitrogen and oxygen
Nitrogen and hydrogen
Hydrogen and carbon
Answers
Answer:
c
Explanation:
Answer:
4
Explanation:
To investigate the influence of low soil water availability on photosynthesis, Klaus Winter and Joseph Holtum (2014) subjected a potted Clusia pratensis plant ...
Answers
To investigate the influence of low soil water availability on photosynthesis, Klaus Winter and Joseph Holtum (2014) subjected a potted Clusia pratensis plant to low soil water availability.
Photosynthesis is a process by which green plants and some other organisms use sunlight to synthesize foods with the help of carbon dioxide and water. The Clusia pratensis is a tree species that is native to tropical regions of South America. It is an important source of food and water for animals in these regions. In a study conducted by Klaus Winter and Joseph Holtum (2014), they subjected a potted Clusia pratensis plant to low soil water availability to investigate the influence of low soil water availability on photosynthesis.
Photosynthesis is a process that requires water, carbon dioxide, and sunlight to produce glucose. The glucose is then converted into energy that is used by the plant. In low soil water availability conditions, the plant may not have enough water to undergo photosynthesis. This can lead to a decrease in the plant's growth rate and productivity.In conclusion, low soil water availability can have a negative effect on photosynthesis and plant productivity. The study conducted by Klaus Winter and Joseph Holtum (2014) on a potted Clusia pratensis plant is a good example of this.
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Water seeps inside cracks in a boulder and freezes. Over time, the cracks expand and the boulder breaks in half. What process caused this change in the rock?
Answers
Answer:
it may be erosion, I'm not quite sure but it could possibly be a form of erosion.
For brainly !!
Give an example of seedless vascular plants
Answers
Answer:
one of them would be ferns
People/ humans come help crazy people hahhahahaha xd lolo everting crazy
the total length of a path taken by an object to travel from one place to other is called ---------a. speed b. velocity c. displacement d. distance traveled
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Answers
Describe the effects of feedings on the
energy expenditure, FMR, of male and female
kittiwakes.
Answers
Answer:
feeding decreased the energy expenditure of both female and male kittiwakes. Female kittiwakes were affected by feeding more than male ones, the “difference between fed and controlled female groups' FMR is higher.
Which types of light are absorbed by genetic material? (check all that apply)
Answers
Which of the following correctly shows the direction of energy flow through a
simple food chain?
A. Producer – primary consumer - secondary consumer
B. Primary consumer – secondary consumer - producer
Ο Ο Ο Ο
C. Producer → secondary consumer - primary consumer
D. Secondary consumer - primary consumer - producer
Answers
Answer:
Producer → Primary consumer → Secondary consumer
Explanation:
This is the correct energy flow in a simple food chain.
State the duration of insolation at the following latitudes:
a. Equator (0 degrees)
b. New York (42 degrees North)
c. North Pole (90 degrees North)
d. South Pole (90 degrees South)
Answers
and your welcome
…….
Which biotic factor would be most effective in maintaining homeostasis in an ecosystem
1. The absence of large trees
2. The presence of many ponds
3. The presence of many species
4. The absence of predators
Answers
Answer: 3. The presence of many species
Explanation:
A biotic factor that would be most effective in maintaining homeostasis in an ecosystem is as follows:
The presence of many species.Thus, the correct option for this question is C.
What is an Ecosystem?An ecosystem may be defined as a place or an area where individuals of different species live together and interact with one another for the purpose of food, shelter, and space.
Among the given options, the pond is classified as a source of abiotic factors. While the absence of trees is not favorable for any ecosystem in order to maintain homeostasis. The absence of predators makes a population grow significantly but does not maintain homeostasis, it is also not considered.
The presence of many species increases the overall diversity of any ecosystem. It also provides flexibility to the surrounding atmosphere. This statement is typically involved in the effective maintenance of homeostasis in an ecosystem.
Therefore, the correct option for this question is C.
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How does the use of wild-life/animals impact on the earth?
Answers
Answer:
Hope it helps...
Explanation:
Animals help us to save our environment. Some micro organisms such as bacteria help us clean the environment; others help plants by converting free nitrogen from air and feeding the roots. Some insects and earthworms help in agriculture by increasing fertility of the soil and also by increasing organic quality of soil.
Answer:
When a predator goes extinct, all of its prey is released from that predation pressure, and they may have big impacts on ecosystems. If there are too many deer, for example, they can really change the ecosystem because they can destroy forests, and they also carry diseases.
Please help me it’s so confusing
Answers
That just makes sense in my head
it is estimated that decreases productivity because of missed work (due to chronic illnesses and diseases), and the decrease in productivity makes products more expensive because other employees are paid overtime to make up for the hours that are not worked when someone else misses work.
Answers
According to estimates, obesity lowers productivity because of missed work (caused by illnesses and chronic conditions), and the higher cost of goods results from the need for other employees to work overtime to make up for lost hours when someone else is absent.
What is the primary reason for obesity?Overeating and insufficient exercise are the usual causes of obesity. If you consume large amounts of energy, especially fat and sugars, without expelling it through exercise and physical activity, a significant portion of it will be stored by the body as fat.
Children and adults alike are affected by obesity. Numerous elements, such as eating habits, physical activity levels, and sleep schedules, can contribute to excessive weight gain. Genetics, certain medications, and social determinants of health are additional factors.
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what are the proteins used in active transprot called
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(d) Based on the data in Table 1 and the biomass of the very large animals eaten by the lions, predict the likely effect on both the lions and leopards if the availability of the very large animals becomes limiting in the reserve. After analyzing the data, the scientists claim that the leopards and lions coexist in the reserve through the use of niche partitioning. Use evidence from the data provided to support the scientists’ claim
Answers
According to the response, 38% of the lions' prey species make up 63% of the biomass they devour, thus if the supply of really large animals becomes limited, the leopards and lions will begin to compete over prey (and this will be especially true of the medium-sized prey).
The answer suggests that, for most part, leopards and lions depend on prey species of various sizes and hence do not compete with one another for food. According to the response, 38% of the lions' prey species make up 63% of the biomass they devour. (The population figures indicate that their populations have stayed comparatively stable over time, indicating that they will be not directly competing with one another.) All the populations of all the various species that coexist in a specific location make up an ecological community.
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Select the terms that fit in the science category "Earth and Space." Select all that apply.
Answers
CHECK THE COMPLETE QUESTION BELOW;
Select the terms that fit in the science category "Earth and Space." Select all that apply. water air animals land plants solar system light sound
Those terms from the question that fit in the science category "Earth and Space are:water air animals plants solar system lightEarth can be regarded as of of the nine planets we have , it is the planet where human life is found. Earth contains five systems which are; geosphereBiosphereCryosphereHydrosphereAtmosphereAll these five system contains gases and other resources which are required to sustain life of man and animal, and they contain Water, air and others.
Space can be regarded as vacuum which is responsible for hosting of the galaxies as well as sun that make up solar system. There is emissions of light and this light can be reflected on the earth, while there is revolving of this planets around the sun.
Therefore, terms that fit in the science category of Earth and space are water, air , plants animal, light as well as solar system
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compare the effect of the stratospheric ozone and tropospheric ozone on people’s health
Answers
Answer:
The stratospheric ozone, which is responsible for absorbing UV radiation, does not pose a health risk to people, whereas the tropospheric layer is in charge of causing pollutants to become trapped inside human lungs.
A school aged child is brought to the clinic by her parents. The parents state that the child will be engaged in some activity at home and then just stop suddenly for a few seconds and then pick up the activity again as if there had been no break in what she was doing. This child should be assessed for what neurological disorder?
a.) Tonic-clonic seizures
b.) Absence seizures
c.) Myoclonic seizures
d.) Status epilepticus
Answers
Answer:
Absence seizures
Explanation:
This is a type of seizure also known as ( Petit Mal seizures).It is common in children, (between 4-14 years) and characterised with intent stare at empty space for few seconds(which may occur in 10 -100 times in a day) and does not caused any significant harm.However,with frequent occurrence it may affect concentration.It does not exceed 15 seconds
it is caused by repeated electrical signals in the brain due to interference in the synaptic transmission and also to alterations in levels of Neurotransmitters .
Staring into empty space,
Fluttering of eyelids
Intermittent stoppage of speech are some of the symptoms.
Treatment is with medications.,
Which of the following is true about the independent variable?
It is observing the world around you
It is what happens as a result of your experiment
It is the single factor that a scientist manipulates within an experiment
It is an educated guess regarding the question
Answers
According to the research, the correct option is C. The independent variable is the single factor that a scientist manipulates within an experiment.
What is the independent variable?It is the variable whose main characteristic is that they have the capacity to adopt different values.
In this sense, it represents that which varies because it is referred to as a manipulated variable because it is assigned values that are arbitrary.
Therefore, we can conclude that according to the research, the correct option is C. Independent variables acquire values that determine the value of the first.
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if carbon were to leave the plant which process would allow for that to happen
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If carbon were to leave the plant, it could happen through the process of respiration or through transpiration.
Respiration is the process by which living cells use oxygen to break down carbohydrates and release energy. During respiration, carbon dioxide is produced as a waste product and released into the atmosphere. In plants, respiration occurs in both the leaves and roots, and it is necessary for providing energy for growth and other metabolic processes.
Transpiration is the process by which plants lose water vapor through tiny pores called stomata on the surface of leaves. During transpiration, carbon dioxide is exchanged for oxygen as part of the plant's normal gas exchange process. If the rate of transpiration is high and the plant is not taking in enough carbon dioxide to compensate, carbon could potentially leave the plant in the form of carbon dioxide gas.
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How are movement corridors potentially harmful to certain species?
A) They increase inbreeding.
B) They promote dispersion.
C) They spread disease and parasites.
D) They increase genetic diversity.
E) They allow seasonal migration
Answers
Answer:
C. They spread disease and parasites.
Explanation:
Movement corridors are potentially harmful to certain species because they spread disease and parasites.
Hope this helps!
Why is climate change one of the most pressing issues that humans will face to survive as a species?
Answers
The effects of climate change are widespread and include rising sea levels, more frequent and severe natural disasters like floods, droughts, and heatwaves, and the loss of biodiversity. These changes can cause crop failures, water shortages, and the displacement of millions of people, leading to food insecurity, water scarcity, and social unrest. Additionally, climate change can exacerbate existing health problems and cause new ones by increasing the frequency and intensity of heatwaves and extreme weather events, as well as the spread of diseases carried by insects.
Answer:
1,Increased frequency and severity of natural disasters:
2, Rising sea levels: As the Earth's temperature continues to rise, the polar ice caps are melting at an alarming rate,
Explanation:
help please what one
Answers
Answer:
Graph B.
Explanation:
If everything except blue (B) and orange (O) light were blocked, that would be what's streaming through.
what dating method uses the known age of the fossil to determine the age of the rock layer she is studying.
Answers
Answer:
radiometric dating methods
Explanation:
Absolute dating is used to determine a precise age of a rock or fossil through radiometric dating methods. This uses radioactive minerals that occur in rocks and fossils almost like a geological clock.
a genetic mutation caused a newt to have faster reflexes. after generations, most of the newt population has the reflex mutation. what most likely caused this change
Answers
Answer:
Newts with the mutation are better able to survive and reproduce than newts without the mutation.
Explanation:
Prior to any modifications in an eukaryote, a transcribed RNA can be called Choose the TWO correct answers.
O siRNA
O tRNA
O rRNA
O mRNA
O hnRNA
O pre-mRNA
O IncRNA
O sחRNA
Answers
Prior to any modifications in an eukaryote, a transcribed RNA can be called hnRNA and pre-mRNA.
What is eukaryote ?
A eukaryote is a type of organism that has a nucleus and other membrane-bound organelles.
Therefore, Prior to any modifications in an eukaryote, a transcribed RNA can be called hnRNA and pre-mRNA.
hnRNA stands for heterogeneous nuclear RNA. It is the initial transcript of a gene that has not yet been processed. hnRNA contains exons and introns, which are later spliced out to form mRNA.pre-mRNA stands for precursor messenger RNA. It is the processed form of hnRNA that has had the introns removed. Pre-mRNA is then exported from the nucleus to the cytoplasm, where it is translated into protein.Learn more about eukaryote here : brainly.com/question/30584795
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What happens during fermentation?
Answers
Jennifer is writing an algorithm to analyze a play that she is reading. What type of algorithm would be appropriate for this application? (1 p
O greedy algorithm
O graphing algorithm
O machine learning algorithm
O linear programming algorithm
Answers
O linear programming algorithm is the type of algorithm would be appropriate for this application
What three varieties of linear programming are there?The following are the several forms of linear programming: the Simplex technique for solving linear programmes.
Linear programming is a branch of mathematics that is heavily utilised in combinatorial optimization (LP). The LP problem is an optimization problem with a linear objective function and all associated constraints, thus the name.
Different approaches can be used to tackle a linear programming problem. Examples include the graphic technique, the simplex approach, the ellipsoid method, and interior point methods.
Identifying the quantities you need to know to solve the problem is the first step in constructing a linear programming challenge.
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Based on the information provided, a graphing algorithm would be most appropriate for analyzing a play.
Graphing algorithms are commonly used for analyzing relationships and connections between entities. In the context of analyzing a play, the algorithm could represent characters, scenes, or events as nodes in a graph and establish connections between them.
This would allow Jennifer to analyze the interactions, dependencies, and patterns within the play.
Greedy algorithms, machine learning algorithms, and linear programming algorithms are not specifically tailored for analyzing literary works like plays.
While they may have applications in other domains, they are not the most suitable choice for analyzing the structure and content of a play.
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How energy from the sun is absorbed in earths atmosphere
Answers
Answer:
Explanation:
About 23 percent of incoming solar energy is absorbed in the atmosphere by water vapor, dust, and ozone, and 48 percent passes through the atmosphere and is absorbed by the surface. Thus, about 71 percent of the total incoming solar energy is absorbed by the Earth system
Answer:
The earth-atmosphere energy balance is the balance between incoming energy from the Sun and outgoing energy from the Earth. Energy released from the Sun is emitted as shortwave light and ultraviolet energy. When it reaches the Earth, some is reflected back to space by clouds, some is absorbed by the atmosphere, and some is absorbed at the Earth's surface.