pls help me i don't really understand
its the same thing just different pictures
Answers
Answer:
Explanation:
Sodium Chloride or NaCl is made up of two elements, sodium (or Na) and chlorine (or Cl). A molecule of sodium chloride, NaCl, consists of one atom each of sodium and chlorine. Hence, each molecule of NaCl has 2 atoms total. Similarly, we can calculate the total number of atoms in 1 mole of sodium chloride.
Related Questions
Please help me por favor :'(
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Which of the following are sources of biomass? wood the Sun manure water paper
Answers
Answer:
I am pretty sure that the following sources of biomass are wood, manure, paper, and water but water is 50% of biomass so I don't know if I would claim it as a source, also the sun. So it is pretty much all of them.
I'll give Brainliest!!!
Which of the following is not a physical change?
A.sublimation of iodine C. tearing a piece of cloth
B. burning of wax in a candle D. dissolving sugar in a tea
Answers
Answer: B. Burning of wax in a candle
Explanation: Burning of wax is a chemical change due to the combustion of fuel in the presence of oxygen to produce carbon dioxide. A physical change part of it is when the wax of candle melts and the shape is lost.
Key Questions and Terms Notes
A _________ is a unit of energy that describes how much energy the body can get from eating or drinking certain foods.
What are nutrients?
How do each of these nutrients impact the body?
Carbohydrates:
Fats:
Proteins:
Vitamins:
Minerals:
Water:
What is an average? What is the formula to calculate an average?
What is a nutritionist an expert on?
What three processes take place in the digestive system?
What body parts work together to form the digestive system?
___________ is the process the body uses to break down food.
____________ is the process by which nutrient molecules are passed from the digestive system into blood.
____________ is the discharge of waste from the body.
What is the difference between mechanical digestion and chemical digestion?
Briefly describe the process of digestion that happens in the body, starting with someone taking a bite of food.
What is the role of the excretory system?
The process of removing waste is called ______________.
What are two waste products the body must eliminate?
How is most water in your body eliminated?
What structures in the body make up the urinary system?
_________ are bean-shaped organs that create and excrete urine.
What are two ways the excretory system helps the body maintain homeostasis?
In each stage, how do nephrons filter waste from the blood?
Stage 1:
Stage 2:
Answers
Answer: A calorie ia a unit of energy that describes how much energy the body can get from eating or drinking certain foods, Nutrients is a substance that provides nourishment essential for growth and the maintenance of life, how these impact the body is that they play a role in maintaining blood cells
Explanation:
Nutrients are a molecule in all food that organisms need to make energy,grow,reproduce, and develop and do basic human functions in our everyday life.
Carbohydrates gives us quick energy and provides the body with glucose
Fats gives us long term energy and insulation for our bodies
Proteins make our bone structure stronger and to help our body make and repair cells
Vitamins help our body resist some infection and viruses that make us sick and help our body get energy from the food we eat
Minerals build up our bones and teeth
Water helps break down food and carries the nutrients to our cells that need them.
Calculate the volume (in cm3
) of 54 g
of water at 1 ∘C
.
Express the volume in cubic centimeters to two significant figures.
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Describe an example of a stimulus that the nervous system would react to, and describe the response created by that stimulus.
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Answer:
A stimulus that the nervous system would react to a electrical impulse being made in response to the stimulus.
Explanation:
The system which send messages back and forth between the brain and the body is known as nervous system. It is the brain which controls all the body functions.
What is stimulus?The changes in the environmental conditions to which the living organisms respond is defined as the stimuli. Every organisms responds when an external stimulus acts on it. The response given to the stimulus by various organisms is known as coordination.
One of the best examples for the stimulus and response is touching a hot object and withdrawing the hand. When you accidentally touch a hot object, we will withdraw our hand automatically. Here the heat of the object is the stimulus and withdrawing hand is the response.
Similarly if we are hungry, we will eat some food. It is also an example of stimulus and response.
Thus the change in the environment is the stimulus and the reaction of the organism to it is the response.
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please solve this for me
Answers
The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.
For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.
A voltaic cell, also known as a galvanic cell or an electrochemical cell, is an electrochemical device that generates electrical energy through a spontaneous chemical reaction. It consists of two half-cells connected by an external circuit and a salt bridge or porous barrier that allows the flow of ions between the two half-cells.
Each half-cell consists of an electrode immersed in an electrolyte solution. The electrode is typically made of a metal or a conductive material, and the electrolyte is a solution containing ions that can participate in the redox (reduction-oxidation) reaction.
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Answer:
The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.
plsss helppp ASAP
am i right?
Answers
Answer:
A because it is one big piece b is broken into 4 pieces so the answer is A
Explanation:
Which describes an atom that has fewer neutrons than protons and more electrons than protons?
1. Negative Compound
2. Positive Compound
3. Positive Ion
4. Negative Ion
Help!
Answers
Answer:
3. Negative Ion
a negative Ion has more electrons then protons and there are more electrons
hope this helped ^^
I did that question
Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
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The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
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What type of person studies and collects data on the weather?
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NO PLAGARISM
The water of a swimming pool is hypotonic to our cells. Explain in detail with evidence and reasoning why we do not swell and pop when we go for a swim.
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Answer: Hello: ) ✨ It depends on the concentration of all solutes in the solution (ie, its osmolarity). A solution with low osmolarity is hypotonic and vice versa. Solutions having the same osmolarity are isotonic. Water in pools and rivers is hypotonic compared with sea water, but water from the Dead Sea is hypertonic.We do not swell and pop when we go swimming in a hypotonic swimming pool because our skin protects us from the external environment and does not let water cross into or out of our body surfaces. ... hope this helps have a great dayAssuming the water is warm enough that you don’t simply die of hypothermia, the next problem would be your skin. For reasons that still aren’t well understood, human skin starts to break down after continuous immersion in water of a few days. You’d suffer open sores and be liable to fungal and bacterial infections just from the spores on your skin, even if the water itself was perfectly sterile. The pressure of the water also reduces the circulation to your extremities and makes breathing more difficult.
Explanation:
A relative term, hypotonicity defines a solution's characteristic in relation to another solution.
What is hypotonic solution?The cytosolic fluid or the fluid found inside a cell is frequently used as the comparison solution in biology. Therefore, a solution would be considered hypotonic in biology if it contained fewer solutes than the cytosol of a cell. The semipermeable membrane is the cell membrane. What then occurs to a cell in a hypotonic environment.
Tonicity has the prefix "hyper," which denotes "more" or "excess." Consequently, a solution that contains more non-penetrating solutes than the other solution can pass through a semipermeable barrier.
Therefore, A relative term, hypotonicity defines a solution's characteristic in relation to another solution.
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How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)
a. The atom’s volume increases.
b. The atom’s mass increases.
c. The atom becomes positively charged.
d. The atom becomes negatively charged.
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c. The atom becomes positively charged
if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom
Atoms are made up of atomic particles. Which of the following is not an atomic A.particle
B.electrons
C.neutrons
D.molecules
E.protons
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Answer:
D
Explanation:
san atom is made of electrons, protons and neutrons
Answer:molecules
Explanation:
HELP RTIGHT NOWWWWWWWWWWWWWWWWW
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Explanation:
biosphere
that is the answer
Answer:
biosphere
I hope it help
Provide 3 examples of substances that are mixtures and list the substances in them.
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Sugar and salt
Salt and pepper
Select the correct scientific notation form of this numeral using only 2 significant figures. 5,421,200.00 m
Answers
Answer:
5.4 × 10^6
Explanation:
If substances and C are both in the gas phase and are at the same energy level, which of the two substances will need to have more energy transferred out in order to change to the liquid phase? Substance B or substance C? Explain your answer.
Answers
Answer:
It's not the same, due to the fact that Substance B has a medium attraction and Substance C has a low attraction
Explanation:
Answer:
It's not the same, due to the fact that Substance B has a medium attraction and Substance C has a low attraction
Explanation:
Hope this is helpful:)
Apples have many different genetic traits, including skin color, size, sweetness, and crunchiness. Each variety (type) of apple has a unique combination of phenotypes for these traits. The first trait most people notice about an apple is the color of its skin. A single gene that comes in two forms (alleles) controls this trait. The allele for red color (C) is dominant, and the allele for yellow color (c) is recessive.
The seeds in apples form by sexual reproduction that involves cross-pollination. All the apples on a tree that grows from a seed will be the same color — either red or yellow. That's because the color of their skin depends on the pair of alleles the tree inherited from its parents. An apple orchard usually has trees of many varieties. Because of cross-pollination, each apple flower can be pollinated by pollen from several different trees. Thus, each seed in an apple from an orchard probably has a unique combination of genes. This can be a problem for an apple tree farmer. If the farmer grows new apple trees from seed, the apples on the new trees will be unlikely to look or taste like either parent tree's apples. That's because they will not have the same mix of traits.
So, how does a farmer make sure that all the apples on a tree look and taste a certain way? When farmers find an apple they like, they use methods of asexual reproduction to make new trees. Grafting is one way to asexually reproduce apple trees that are identical to the parent tree. A farmer cuts off a branch of the apple tree that produces the best apples. Then the branch is grafted onto, or joined with, the trunk of another tree. The apples that grow on the new tree will be genetically identical to those of the parent tree that the branch came from.
In this activity, you will develop two models for growing new trees that make either red or yellow apples. The two models should compare sexual reproduction and asexual reproduction (grafting). Include the genotypes of the parents and the offspring in your models.
To model sexual reproduction, use Punnett squares to show the results of crosses between trees with different colors of apples. Start by showing a cross between one red parent that has the genotype CC and one yellow parent that has the genotype cc. Then choose two trees from the first generation of offspring to make a second generation. Cross each of them with another tree that has the genotype Cc.
To model asexual reproduction, use a branching diagram (concept map or tree diagram) to show the results of grafting. Start with a parent that has the genotype Cc. Show four offspring for the first generation of grafting. Then choose two of these offspring as parents for a second generation of grafted trees.
Finally, write two short paragraphs: one under the Punnett squares and another under the branching diagram. Each paragraph should summarize what the diagram shows about genetic variation.
Answers
Answer: Is in the Explanation
Explanation:
The Punnett squares show that sexual reproduction results in a great deal of genetic variation in the offspring. When a red parent with genotype CC is crossed with a yellow parent with genotype cc, all of the first generation offspring will be heterozygous for skin color (genotype Cc) and will have red skin. When two of these heterozygous offspring are crossed with each other, the resulting second generation will have a mix of genotypes and skin colors. This demonstrates that sexual reproduction can create a diverse set of offspring with different combinations of traits.
The branching diagram shows that asexual reproduction through grafting can create offspring that are genetically identical to the parent tree. When a tree with genotype Cc is grafted, all of the first generation offspring will have the same genotype and skin color as the parent tree. When two of these offspring are chosen to be the parent trees for a second generation of grafting, all of the second generation offspring will also be genetically identical to the first generation offspring and the original parent tree. This demonstrates that asexual reproduction can produce offspring that are genetically identical to the parent and have the same set of traits.
Which type of selection is shown in the graph above?
A. Disruptive selection
B. Stabilizing selection
C. Disaster Selection
D. Directional selection
Answers
In the given graph, the Evolved Population is showing disruptive selection. Hence, the correct option is A. Disruptive selection.
Stabilizing selection is a form of natural selection where individuals with average phenotypes are more likely to survive and reproduce their number. In this selection, the population tends to maintain a stable phenotype. As shown in the graph, the population is maximum for the population having a moderate length of neck.
Disruptive selection is a type of natural selection where extreme phenotypes are preferred over average phenotypes, leading to an increase in genetic variation and the population becoming more diverse. In this type of selection, the population diverges into two or more distinct phenotypic groups. As shown in the graph, two ranges of the population are favored for having traits for extreme lengths of the neck.
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Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
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Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome
Explanation:
rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.
In 3 paragraphs, describe how weathering changes the earth's surface. Please do not copy and paste.
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Answer:
Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time.
The effects of weathering disintegrate and alter mineral and rocks near or at the earth's surface. This shapes the earth's surface through such processes as wind and rain erosion or cracks caused by freezing and thawing. Each process has a distinct effect on rocks and minerals. Mechanical weathering increases the rate of chemical weathering. As rock breaks into smaller pieces, the surface area of the pieces increases Figure below. With more surfaces exposed, there are more surfaces on which chemical weathering can occur. Mechanical weathering may increase the rate of chemical weathering.
Weathering, erosion, and deposition are processes that act together to wear down and build up the Earth's surface. These processes have occurred over billions of years. Weathering is any process that breaks down rocks and creates sediments. Weathering causes the disintegration of rock near the surface of the earth. Plant and animal life, atmosphere and water are the major causes of weathering. Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice.
_____________ stated that electrons orbit the nucleus. Question 1 options:
Bohr
Thomas
Rutherford
Democritus
Answers
Answer:
I believe it would be Bohr
Explanation:
Answer:
Bohr
Explanation: a theory of atomic structure in which the hydrogen atom (Bohr atom ) is assumed to consist of a proton as nucleus, with a single electron moving in distinct circular orbits around it, each orbit corresponding to a specific quantized energy state: the theory was extended to other atoms.
Therefor, the answer is Bohr. hopefully this helped!
A patient comes to the doctors office complaining of gas. Which active ingredients is the physician most likely to recommend for the patient complaints?
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PLs HElp Me
Microscopes use _______ lenses which refract the light to a single point, causing the image of the object to appear larger.
concave
translucent
convex
opaque
Answers
Answer:
convex
Explanation:
Answer:
Convex
Explanation:
Convex lenses are used in microscopes and refracts light to a single point. Hope this helps :)
Please answer the following question I give you.
1. What do waves begin with? (this is science)
2. What do waves transfer?
3.What do waves not transfer?
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Answer:
1.Waves are caused by wind
2. energy
3. matter
Answer: Wave is a common term for a number of different ways in which energy is transferred; so in electromagnetic waves, so the energy is transferred through vibrations of electric and magnetic field. Does that answer your question.
Explanation:
That is my answer
david turned on the television. The electrical energy turned into
Answers
Answer:
mechanical energy
Explanation:
Answer:
D. Light, sound and electricity.
Explanation:
USATestPrep
What kind of rocks would you expect to see on Mars? What evidence supports your response?
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How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
Choose the answer that best completes the sentence below. Cloud forests are home to unusual animals, _______ spectacled bears and barking deer.
A. previously
B. such as
C. as a result
D. third
Answers
B. Such as
This is because it is listing the animals> to the “unusual forest