Answer: We are given:
Mass of solvent (water) = 100 grams
Mass of solute (NaCl) = 20 grams
Mass of the Solution:
Mass of Solution = Mass of Solute + mass of Solvent
100 + 20 = 120 grams
Mass Percent of NaCl:
We know that
mass percent of NaCl = (Mass of NaCl / Mass of Solution) * 100
replacing the variables
Mass% of NaCl = (20 / 120)*100
Mass% of NaCl = 100 / 6
Mass% of NaCl = 16.67%
Explanation:
What happens to excess carbohydrates in animals?
They are stored as fat.
They are stored as protein.
They are stored in nucleic acids.
They are stored as sugar.
Answer:
A-They are stored as fat.
Explanation:
In animals, the excess of carbohydrates or glucose is first converted into glycogen (polysaccharide) through the process called glycogenesis. ... When glycogen reservoirs are saturated, excess carbohydrates, as well as proteins, are converted into fats which are then majorly stored in adipose tissues.
write the difference
between mitosis and mieosis
please give me the answer
don't spam
Answer:
Meiosis is the type of cell division that creates egg and sperm cells. Mitosis is a fundamental process for life.
Explanation:
mitosis is same number
and mieosis _ half number
Will the geosphere suffer long term or short term damage from a forest fire? Explain.
Which is most likely the last to form
please answer asap! anatomy final exam!! thanks:)
Describe what lymph is and how it travels throughout the body. What would happen if the lymphatic system did not drain interstitial fluid from the body?
Answer:
A fluid that flows through the lymphatic system is called lymph. it travels when you breathe and move your muscles the lymph continuously get pushed towards the heart from the outer reaches of your body. if the lymphatic system didn't drain interstitial fluid then the lymph fluid would build up in the body's tissues, making them swell.
4. Transcribe and Translate a Gene. How is mRNA different from DNA? (Hint read the side-bar on this page for help) What is the correct starting position for translation? Write the amino acids used to assemble your protein in the order below. Where does translation take place?
An animal doctor is called ?
In the experiment, which of the following variables should remain consistent?
the types of plants used
the temperature of the water and vinegar
the type of soil used
All of these choices are correct.
All of the above is correct
Do all plants respond the same to all abiotic factors?
Answer:
Light intensity: limited light will limit photosynthesis. This will affect the distribution of plants, and therefore the distribution of animals that eat plants. ... Temperature: temperature is a limiting factor for photosynthesis - and low temperature therefore limits growth of plants.
If two objects are moving at a constant speed with the same velocity, what will make the
velocity change?
Answer:
The velocity can change by changing the direction
Explanation:
If the direction changes, then the velocity changes even though the speed is constant. Hope this helps!
i know its not a study question but if deaf peopke dont know what people sound like how do think in their head
Answer:
deaf people can think and know thier voice when they are thinking so they don't rlly need to imagine peoples voices they know what people would soundlike but some people aren't born deaf and know how people sound like
Explanation:
Answer:
Well.. they have their own voice that they can be able to hear in their head... it's given automatically, the voice they hear when they talk. It's not something where the first voice you hear in your life, is the one you hear for the rest of ya life..
Explanation:
Hope this helped :D Have a great day
is pathogen a bacteria and a virus? Or just a virus or just a bacteria ?
Answer:
Both a Bacteria and Viruse
Explanation:
Pathogens are taxonomically widely diverse and comprise viruses and bacteria as well as unicellular and multicellular eukaryotes.
A pathogen is both bacteria and virus but there are other pathogens as well. Pathogen is a very broad term and is just any organism that causes decease.
Throughout the reflection, make sure you have a copy of the Student Guide and your data table.
In your experiment, you tested this hypothesis:
The independent variable in this experiment was , and the dependent variable was
Answer:
hey tim they deleted our answer
Explanation:
The transfer of energy as electromagnetic waves is called
Answer:
I beleave it is called electromagnetic radiation.
Don't quote me on this however, I'm not entirely sure
Which of the following would most likely be reduced when combined with Al(s)?
Will be giving brainliest
Answer:
A
g
+
- oxidising agent
K
- reducing agent
C
l
2
- oxidising agent
Explanation:
A
g
+
- oxidising agent (most likely form Ag by gaining an electron)
K
- reducing agent (most likely form
K
+
by losing an electron)
C
l
2
- oxidising agent (most likely to form 2
C
l
−
by gaining electrons)
This is based on what is likely, not so much that the above are known to be oxidising or reducing agents.
The most likely option to be reduced when combined with Al(s) is Fe (iron). Therefore option C is correct.
Reduction refers to the gain of electrons by a chemical species. In this case, we are considering the reduction of ions when combined with solid aluminum (Al(s)).
Aluminum (Al) is more reactive than iron (Fe) in terms of its electrochemical properties. When aluminum reacts with certain metal ions, it tends to displace those ions and undergo oxidation itself. This process is known as a displacement or redox reaction.
Fe (iron) is less reactive than aluminum and can be displaced by aluminum in certain redox reactions. Therefore, it is the most likely option to be reduced when combined with Al(s).
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Which explanation best explains the purpose of DNA replication before the formation of the daughter cell?
A.In order for each daughter cell to recieve two copies of the original cell’s DNA.
B.In order for each daughter cell to recieve an identical copy of the original cell’s DNA.
C.In order for each daughter cell to recieve a rearranged copy of the original cell’s DNA.
D.In order for each daughter cell to recieve only the best parts of the original cell’s DNA.
Answer:
B
Explanation:
the second is the best explanation
Plz help me I'll give branly stuff. plzzzzz
Answer:
The answer is B
first section of the digestive sistem
Answer: Mouth
Explanation:
Answer:
Mouth
Explanation:
The mouth is the beginning of the digestive tract. In fact, digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use
What are some environmental indicators?
4. Molecules that pass through cell membranes by facilitated diffusion include
e. large molecules.
f. hydrophobic molecules.
8. oxygen molecules.
h. two of the above
Answer:
E. Large molecules
Explanation:
Large molecules cannot pass through the membrane without help they are too big. This is because the membrane is very selective with what it let enters.
List some
examples of adaptive evolution:
Answer:
The changes are the organism's adaptive traits and they arise as a result of natural selection. An example of adaptive evolution is the horse's teeth. Its teeth are one of the traits that made it fit for a grass diet. In contrast, genetic drift produces random changes in the frequency of traits in a population
Explanation:
Answer:
I will give you 5 of them :)
1.Flightless Birds
Birds such as ostriches, emus and penguins are unable to fly. However, this hasn't always been the case — each of these flightless birds has ancestors who easily flew. Over many generations, ostriches and emus evolved to have larger bodies and feet made for running on land, which left them without the ability (or need) to fly. The same goes for penguins, who traded typical wings for swim-friendly flippers over many thousands of generations.
2.Blue Moon Butterfly
The Blue Moon Butterfly on the Samoan islands was attacked by a parasite, which destroyed male embryos. This changed the balance of male and female but that was remedied within 10 generations. This is because the few male moths that were immune lived to breed.
3.Mexican Cavefish
Mexican cavefish once had eyes, but in the caves, eyes were no longer necessary. They have also lost their pigmentation because they no longer need camouflage from predators. This is an example of regressive evolution, the belief that "if you don't use it, you lose it" when it comes to traits.
4.Warrior Ants
These ants have a chemical signal that identifies their colony. Some ants learned to imitate this signal from another colony, so they can attack a colony and take over. The worker ants will not even realize there has been an invasion and continue to work.
5.Pesticide Resistant Insects
Whenever you use a pesticide, it kills the majority of an insect population. However, certain insects will experience a gene mutation to develop immunity to it and those insects will reproduce. This happens very quickly, within a few generations, since the generation length for insects is short.
Explanation:
The changes are the organism's adaptive traits and they arise as a result of natural selection. An example of adaptive evolution is the horse's teeth. Its teeth are one of the traits that made it fit for a grass diet. In contrast, genetic drift produces random changes in the frequency of traits in a population
The photo shows a student using email.
What is the main need or want this wave technology meets?
A. To hear and see others in real time
B. To efficiently communicate with others
c. To speak with and see others who are far away
O D. To efficiently store and share music with others
Answer:
B. To efficiently communicate with others
Explanation:
picture
Answer:
B
Explanation:
How many factors should a well-designed experiment test at one time?
Answer:
Depends on the number of experiment variables.
Explanation:
You should only test one variable/factor
Electron transport from complex I to complex IV pumps more protons than transport from complex II to complex IV.
With this in mind, which will produce more ATP
A. Transport from complex I produces more ATP.
B. Transport from complex II produces more ATP.
C. Both produce the same amount of ATP.
Answer:
A
Explanation:
ATP synthase uses a proton gradient to make ATP. Since transport from complex I creates a larger proton gradient, it also produces more ATP.
Electron transport from complex I produces more ATP.
ELECTRON TRANSPORT CHAIN:
The electron transport chain, ETC, is the third and last stage of aerobic cellular respiration. It produces the highest molecules of ATP in cellular respiration. The ETC involves the transfer of electrons to series of molecules in order to create an electrochemical gradient needed for ATP synthesis. The electron transport chain is made up of four complexes namely: Complex I, II, III and IV. NADH and FADH2 produced in the Krebs cycle are the electron carriers. Complex I pumps more hydrogen ions (H+) from the mitochondrial matrix to the intermembrane space. Since the pumped is directly related to the number of ATP molecules, complex I will produce more ATP molecules.Learn more: https://brainly.com/question/442662?referrer=searchResults
What is the genotypic ratio for this Punnett square?
3:1
02:2
O 1:2:1
O 1:1:1:1
Answer:
3:1
Explanation:
because there is a ratio of 3 A TO 1 B
if the first letters are dominant
If you were on the ISS (International Space Station), how would you know that a solar eclipse took place on Earth?
Answer:you could ask your family or look it up you ar probably right next to a sadelite
so connection should be pretty good
WHY IS A FOSSIL FOUND IN MULTIPLE LAYERS OF ROCK (TIME PERIODS) NOT CONSIDERED A RELIABLE INDEX FOSSIL?
True or False: Epinephrine enters
the cell after it binds to the receptor.
Epinephrine enters the cell after it binds to the receptor. Yes, this statement is true.
What are the functions of epinephrine?
Adrenaline, also known as epinephrine, is a hormone and medication which is involved in regulating visceral functions. It appears as a white microcrystalline granule.
Epinephrine injection is used for emergency treatment of severe allergic reactions (including anaphylaxis) to insect bites or stings, medicines, foods, or other substances.
Through its action on alpha-1 receptors, epinephrine induces increased vascular smooth muscle contraction, pupillary dilator muscle contraction, and intestinal sphincter muscle contraction.
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which process do plants and animals share in common?
A. absorption if water
B. cellular respiration
C. photosynthesis
D. transpiration
Cellular respiration process do plants and animals share in common. So, the correct option is (B).
What is Cellular respiration?Cellular respiration is defined as the process that occurs in the mitochondria of all living organisms. In this process, both plants and animals break down simple sugars into carbon dioxide and water and release energy in the form of adenosine triphosphate (ATP).
This process is a set of metabolic reactions that occur inside cells to convert the biochemical energy obtained from food into a chemical compound called adenosine triphosphate (ATP). Metabolism define as the set of chemical reactions carried out to maintain the living state of cells in an organism which can be divided into two categories:
CatabolismAnabolismThus, Cellular respiration process do plants and animals share in common. So, the correct option is (B).
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1. What is the pH range for an acid?
A. 0 - 7- 14
2. What is the pH range for a base
A. 0 - 7- 14
3. What are the products of an acid base reaction?
A. water and salt
B. acid and base
C. water and sugar
D. water
4. What substance has a neutral pH?
A. ammonia
B. water
C. sodium bicarbonate
D. vinegar
5. The negative ion found in bases is the ______________
A. hydrogen ion (H+)
B. hydroxide ion (OH-)
Answer:
0-7-14
0-7-12
c is correct water and suger
d is correct vinegar
b is correct (OH-)
