Answers
Answer:
1. Fluorine (7 electrons) => c. steals 1 electron
2. Calcium (2 electrons) => a. gives away 2 electrons
3. Oxygen (6 electrons) => d. steals 2 electrons
4. Lithium (1 electron) => e. gives away 1 electron
5. Xenon (8 electrons) => b. neither gives away nor steals any electron
Explanation:
Given the following valence electrons of the atoms listed above, each atom can be matched to its corresponding number of electrons it can steal or give away as they form bonds and attain a stable state:
1. Fluorine (7 electrons) => this will steal 1 electron from another atom to attain a stable state when it comes to make the number of electrons 8.
2. Calcium with 2 valence electrons, will give away this 2 electrons in its outer shell to be stable and form bond with another atom that will accept these 2 electrons.
3. Oxygen with 2 valence electrons, will steal 2 electrons to make the electrons in its outer shell 8, as it bonds with another atom to become stable.
4. Lithium will give away 1 electron to become stable when it combines.
5. Xenon with 8 electrons in its outer shell is in a stable state and kind of inert. It doesn't need to receive or steal any electron from or to any other atom in this state.
Related Questions
What effect does adding soda to the water have on solution rate?
Answers
Answer:
If soda is added to the water and tablet, then the dissolving rate will be longer because more substances were mixed to the solution/mixture.Explanation: rate pls!
Viviana is ordering carpet
for 16 square rooms in a
hotel. Each room will need
100 square feet of
carpet. What is the
length of 1 room?
Answers
Answer:10 ft
Explanation:
You are studying a variety of pea plant that has either red flowers or white flowers. When you cross true-breeding red-flowering plants with true-breeding white-flowering plants, you get all red-flowering plants in the F1 generation. If you then allow the F1 plants to self-fertilize, you observe that 75% of the F2 plants are red-flowering plants, while 25% of the F2 plants are white-flowering plants. Next you make 640 different monohybrid crosses and decide to analyze only the first 8 plants produced from each of these crosses (i.e. a total of 5120 progeny plants total). How many of these crosses would be expected to produce 6 red plants and 2 white plants?
Answers
Answer:
approximately 200
Explanation:
From the question, we have
probability of red = 0.75
Probability of white = 0.25
We are required to find the probability of 6 red + 2 white plants offspring and after we do we multiply it by 640
We will solve this using the binomial theorem method
(a+b)⁸ = a⁸+8a⁷b+28a⁶b²+56a⁵b³+70a⁴b⁴+56a³b⁵+28a²b⁶+8a¹b⁷+b⁸
The required probability is 28a⁶b²
a = 0.75
b = 0.25
= 28 x 0.75⁶ x 0.25² x 640
= 28 x 0.178 x 0.0625 x 640
= 199.36
Which is approximately 200 crosses would be needed
Question 8 (1 point)
Which are the two highest (largest) level taxa in the Linnaean system?
Answers
Answer:
Explanation:
The most significant characteristics (attributes) of a taxon in biological systematics are considered [23] diagnosis, rank and volume. As the classification changes, the characteristics of taxa may change (in different systems, for example, taxa of the same size may have different diagnoses, or different ranks, or occupy a different place in the system) [24].
When identifying taxa, it is often recommended, in addition to the principle of exclusion of polyphily, to follow the principle of optimal diagnosability (which is taken into account when determining the volume and boundaries of each taxon) and the principle of unity of the level of diversity and isolation of taxa of the same rank. In practice, these two principles are not always observed.
Sample Response: No, it does not, because the octet rule says that an atom needs to have eight electrons in its valence shell to be stable. The exceptions are hydrogen and helium, which need only two electrons. This atom has only one electron.
What did you include in your response? Check all that apply.
The octet rule says that atoms need to have eight electrons to be stable, except for hydrogen and helium, which need only two electrons.
This atom has only one electron, so it does not satisfy the octet rule.
Answers
Answer: both
Explanation:
Which is not an example of matter and energy cycling through living things?
A. Cows eating grass
B. A rock resting on the ground
C. Grass giving off oxygen
D. Grass growing
Answers
Answer:
B.) A rock resting on the ground.
Explanation:
This is because no energy is being expelled by the rock, and nor is the ground it's sitting on. The rest of the examples, something is being done and taking place.
What will happen when water is poured into a beaker of strong acid?
Answers
Caves are formed from:
A. Freezing water
B. Sedimentation
C. Mechanical weathering
D. Chemical weathering
Answers
Answer:
d chemical weathering
How does life exist at the bottom of the
ocean even though there is no light?
A. Plants create their own light at the bottom of the ocean.
B. Fish do not require plants in order to live.
C. Organisms are capable of producing food without light.
D. Plants in the ocean do not require light to
photosynthesize.
Answers
Answer:
C. Organisms are capable of producing food without light.
Explanation:
this is the best answer because mostly bacteria live in the the bottom of the ocean. and they feed on dead organisms who have already harnessed the sun's light to create food.
A breeder crossed two chickens, one is a true-breeding black chicken and the other is a true-breeding yellow chicken. All the resulting F1 chicks are black. Several of these F1 black chicks are crossed with the following results: 43 black, 14 brown, and 19 yellow chicks. What kind of inheritance is this? Friend #1 tells you that the answer is incomplete dominance but Friend #2 tells you that the answer is epistasis. You analyze the problem and realize that neither is right. The problem is a trick problem and there is no answer to it.
Answers
Answer:
You analyze the problem and realize that neither is right
Explanation:
All intersections and proportions are attached.
First, let's analyze the crossover that formed the F1 generation. At this crossing, chickens of genuine color were used, which indicates that one of them was h0m0zygous recessive (aa) and h0m0zygous dominant (AA). Thus, the entire offspring would be heterozygous (Aa) and would have the color determined by the dominant gene. In this case, all the offspring are black in color, which indicates that in the parents, the black hen is h0m0zygous dominant (AA), while the white hen is h0m0zygous recessive (aa).
In the cross that generated F2, we can see that within the offspring, the individuals in greater proportion are those who present heterozygosity and therefore have the "Aa" alleles. When incomplete dominance occurs, individuals in F2 who have heterozygosity have an intermediate phenotype between the two h0m0zygous phenotypes. As we can see in the question, in F2, heterozygous union members do not have an intermediate phenotype, but the black placement phenotype, which indicates that this is not a case of incomplete dominance.
This is also not a case of epistasis. This is because epistasis causes a gene to eliminate the expression of another gene, whether on the same chromosome or not. The result of this type of inheritance would be that some chickens had colored coloring, while others had no color at all in F2. As we can see, all chickens have colored coloring.
This indicates that neither student is correct.
Line graphs that indicate time along the x-axis can be used to predict what would happen to dependent variables in an experiment at a later point in time O only if the existing line shows an upward trend. only if the existing line shows a downward trend. if a new variable was introduced to the experiment. if the experiment continued under the same conditions.
Answers
Answer: the answer is D
Explanation:
if the experiment continued under the same conditions
The ability of trees to transport water hundreds of feet up from the roots is at least partially due to...
A. water’s high density.
B. cohesion of the water molecules to each other and the adhesion of the water molecules to the tree.
C. water’s high boiling point.
D. adhesion of tree molecules with the water molecules.
E. a neutral pH.
Answers
Answer:
option B. cohesion..........tree.
3) The oceans and the atmosphere work together through global currents that do what?
A. Cycle energy and matter to support the biosphere
B. Cycle energy and matter to support plate tectonics
C. Cycle energy and matter to provide nutrients to secondary consumers
D. Cycle energy and matter to support the biosphere as a closed energy system
Answers
Answer:
The correct answer is D)
Cycle energy and matter to support the biosphere as a closed energy system
Explanation:
The earth as we know it is a closed energy system that is, matter cannot be introduced or removed from it. Sometimes, rare meterites enter into the system with minimal or no disruption.
Also, energy can enter and leave. The energy mostly referenced here is the sun.
Within the earths system, the lithosphere, hydrosphere, and biosphere materials and energy go through a cycle which helps to support life.
For example, water when heated up by the sun rises as vapour from the earth and oceans into the atmosphere where it cools and condenses. When it cools and condenses, it , in the form of rain, comes down on the earth and oceans. As rain falls down to the earth and runs off the rocks, rocks are broken down into smaller fragments and soils. The hydrosphere comprises of all water bodies on earth. Besides the vapours which are evaporated from the same into the atmosphere, when volcanoes erupt they also send vapourised water into the atmosphere.
So because the earth is a closed system, a change in one sphere effects a change in others. An example is a change in the water cycle.
Cheers
What is a possible reason that ecosystem 2 has fewer species than ecosystem
Answers
help what's the answers?
Answers
Mrs. Vega's science class incubated chicken eggs to see if any of the eggs would hatch. One of the eggs did hatch, and the class kept the chick. They measured the chick's weight each week using a spring scale. The measurements from the chick's weekly weigh-ins are shown in the table below. Which of the following graphs correctly shows the data from the table?
Answers
Answer:
the fourth chart/ whichever one has the first bar the lowest
Explanation:
matches da chart m8
Answer:
fourth chart
Explanation:
define what factors allow a population of a species to grow to a certain size and how they relate to carrying capacity
Answers
what is definition of soil
Answers
Answer:
the upper layer of earth in which plants grow, a black or dark brown material typically consisting of a mixture of organic remains, clay, and rock particles.
Explanation:
Example-"blueberries need very acid soil"
Answer:
the upper layer of earth in which plants grow,
Describe the light reactions of photosynthesis and for both a C3 and C4 plant, trace the path of a CO2 molecule from the point at which it enters a plant to its incorporation in to the glucose molecule. Include leaf anatomy and biochemical pathways in your discussion of each type of plant. Read the question above and create a document in which you develop responses to the question. Evaluate your essay by using the rubric provided. After you review and make the necessary corrections to your essay, submit your assignment when finished.
Answers
Answer and Explanation:
Type C3 plants absorb CO2 through the stomata located on the leaves. Upon entering the plant, CO2 will be reduced into smaller molecules, which are simpler sugars and are easier to be metabolized. These sugars are glyceraldehyde-3-phosphate and dihydroxyacetone-phosphate. All of this transformation is done using ATP and NADPH + H + as energy currencies.
Upon entering the plant, CO2 is carboxylized by the enzyme ribulose 1,5-bisphosphate carboxylaseoxygenase, also called Rubisco. It is important to note that C3 plants have a very large variety of leaves, since this group has a very large variety of members such as beans, soybeans, cotton, all woody plants, arros, wheat, most grasses, among others.
C4 plants have some differences in the photosynthesis process. This is because to minimize losses and energy expenditure with photorespiration, which has as one of its functions, the capture of CO2 from the atmosphere, these plants have modified their leaf anatomy. These plants can separate the sheath of the vascular females and the cells of the mesophile (this separation does not exist in C3 plants). This type of plant has a concentration of carbon in the cells of the sheath, this causes RUBISCO to limit its performance only to the CO2 carbylation process and does not participate in photorespiration. We can mention as examples of C4 plants corn, sugarcane, sorghum Euphorbiaceae, among others.
What happens during cytokinesis? (1 point).
O The cytoplasm becomes solid.
O The cytoplasm falls apart.
O The cytoplasm divides.
O The cytoplasm changes color.
Answers
Answer: the cytoplasms divides
Explanation:
The cytoplasm of the cell divides during cytokinesis.
CYTOKINESIS:
Cytokinesis is the process whereby the cytoplasm of a cell divides post mitosis. Cytokinesis occurs in both plant and animal cells after which mitotic division i.e. division of the nucleus might have taken place. Mitosis results in the division of the nucleus of a cell, while cytokinesis separates the cell into two distinct daughter cells. Therefore, the cytoplasm of the cell divides during cytokinesis.Learn more at: https://brainly.com/question/3327479?referrer=searchResults
Which of the following correctly identifies active transport?
A Transport proteins move large molecules from areas of low concentration to areas of high concentration using cellular energy
B. Transport proteins move farge molecules from areas of low concentration to areas of high concentration without the use of cellular energy
C. Small molecules move from areas of high concentration to areas of low concentration using cellular energy to enter a cell,
D. Small molecules move from areas of low concentration to areas of high concentration without using cellular energy to enter a cell,
Answers
Name the enzymes responible for the digestion of fats and oil
Answers
Answer:
amylase and other carbohydrase enzymes
Describe the basic functions of animal body systems.
Answers
Answer:
The heart pumps blood through the circulatory system, delivering needed materials (glucose, oxygen) and picking up waste (carbon dioxide) from cells all over the body. Organs systems work together to efficiently and effectively provide all body cells with their basic needs to carry out life functions.
The basic functions which are important for the survival of an organism include processes such as homeostasis, nutrient absorption and distribution in body, reproduction, and defense against injury or pathogens.
What are animal body systems?There are usually nine organ systems present in an animal which includes skeletal, muscular, nervous, endocrine (hormonal), digestive, respiratory, circulatory, excretory (urinary), and reproductive system. Each of these systems perform a specific function.
The Skeletal system provides the body structure and is responsible for the movements of different body parts. The muscular system is made up of all the muscles which are present in the body, these help in connecting different body parts to the skeletal system. The nervous system consist of the brain and the spinal cord, this system is responsible for coordinating different functions in the body.
The endocrine system is responsible for secreting hormones which are responsible for the growth and development of body. The digestive system helps in absorbing the energy present in the food and distributing the energy. The circulatory system is responsible for the circulation of gases and different molecules across the body through blood vessels.
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What kind of research method is good for letting us see patterns in nature?
cause and effect
comparison
relational
simulation
Answers
Answer:
Relational
Explanation:
It's on quizlet.
Answer:
Simulation
Explanation:
Simulation us use to letting us see good pattern in nature because it is a research methodology that project past and future outcomes. It is use the analyse the behavior of present or future new products, a new manufacturing project or the upcoming business activity. It help people to see the patterns in nature these will fall into. It is a computer model that allow the conduction of it's experiments.
defintion of astronomoy
Answers
the branch of science which deals with celestial objects, space, and the physical universe as a whole.
Answer: the study of space
Explanation:
28. Which is not a correct phase in the Calvin cycle?
A. Carbon dioxide fixation phase
B. Reduction phase
C. Glucose synthesis phase
D. Regeneration phase
Answers
Answer:
C. is the answer
Explanation:
A disruption of a gene called DYXC1 on chromosome 15 for humans may be related to an increased risk of developing dyslexia. Researchers1 studied the gene in 109 people diagnosed with dyslexia and in a control group of 195 others who had no learning disorder. The DYXC1 break occurred in 10 of those with dyslexia and in 5 of those in the control group. Science News, August 30, 2003, p 131.
Is this an experiment or an observational study? Experiment Observational study
Answers
Answer:
This is an observational study.
Explanation:
Here, it can be noted that the researcher does not manipulate the method of intervention; Instead, DYXC1 attenuated breaks in both the diseased and control groups. Therefore, it can be considered as an observational study.
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what is the process of slacking?
Answers
Conjugation involves a transfer of genes
Answers
Answer:
Conjugation involves a transfer of genes
Explanation:
Conjugation is a transfer of DNA from a living donor bacterium to a living recipient bacterium by cell-to-cell contact. In Gram-negative bacteria it involves a conjugation pilus. ... Conjugative transposons carry the genes that enable mating pairs to form for conjugation.
A man and woman have a son who is color blind, a recessive sex-linked trait carried on the X chromosome, but neither parent is color blind. The woman is now pregnant with their second child. Which of the following statements is true about the second child? A daughter will be color blind because the father is a carrier of the recessive allele. A son will be color blind because the mother is a carrier of the recessive allele. A daughter will not be color blind because the father is not a carrier of the recessive allele. A son will be color blind because the father’s mother must have been a carrier for recessive allele.
Answers
Answer:
A daughter will not be color blind because the father is not a carrier of the recessive allele
A man and woman have a son who is color blind, a recessive sex-linked trait
carried on the X chromosome, but neither parent is color blind therefore the
daughter will not be color blind because the father is not a carrier of the
recessive allele
Color blindness trait is sex-linked because the trait is carried on the
chromosomes. The female have XX chromosomes while the male have XY
chromosomes. The color blind trait in the son(XY) is as a result of the
woman donating the X chromosomes which is defective and the Y
chromosome came from the man which has no issues.
in this scenario, half of their male children will have normal vision while the
other half will be color blind. The father's X chromosome is normal and all the
girls(XX) will have normal vision but will have the color blind trait in their
chromosomes because the XX chromosome are donated from both the man
and woman.
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