Answer:
8%
Explanation:
Given that,
Mass of solute = 8 g
Mass of soultion, (mass of alloy) = 100 g
We need to find the percent by mass of 8.0g copper is added to enough zinc to produce 100g an alloy. It can be calculated by the formula as follows :
[tex]\text{Mass}\%=\dfrac{\text{Mass of solute}}{\text{Mass of solution}}\times 100\\\\=\dfrac{8}{100}\times 100\\\\=8\%[/tex]
So, the percent by mass is 8%.
The percent by mass of the given copper in the alloy formed is 8%.
The given parameters;
mass of the copper = 8 gmass of the copper-zinc alloy = 100 gThe percent by mass of the given copper in the alloy formed is calculated as follows;
percent by mass of zinc = [tex]\frac{mass \ of \ zinc}{mass \ of \ the \ alloy} \times 100\%[/tex]
percent by mass of zinc = [tex]\frac{8}{100} \times 100\%[/tex]
percent by mass of zinc = 8%
Thus, the percent by mass of the given copper in the alloy formed is 8%.
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what is unique about the life cycle of angiosperm ?
sorry but i kinda need ethe ponits rn so uh ahahah yeah but thanks for thwe in ts
!po
A hypothesis is a statement that can be tested through a scientific investigation. What is the purpose of writing a hypothesis? A. Hypotheses help identify the variables. B. Hypotheses suggest new questions for further investigations. C. Hypotheses always match the conclusion. D.
Answer:
B. Hypotheses suggest new questions for further investigations.
Explanation:
Why do you think the temperature does not change while a liquid boils even
though heat is being added to the liquid?
Answer:
I'm not really sure
Explanation:
similarities between viruses and non living things
Explanation:
nonliving characteristics include the fact that they are not cells have no cytoplasm or cellular organelles and carry out no metabolism on their own and therefore must replicate using the host cell's metabolic machinery. And viruses can infect animals, plants and even other microorganisms.
Explain the digestion process of a complex carbohydrate by arranging the statements in the order that they occur.
Answer: The question is incomplete because the options are not given, here are the options from another websites.
A.The enzyme, amylase. which is present in saliva breaks potysaccharide chains into disaccharides.
B. Other enzymes in the small intestine further break the potysaccharide into monosaccharides.
C. You take a bite and to chew the complex carbohydrate into smaller pieces.
D.Amylase is deactivated by the low pH in the stomach.
E.. Monosaccharides are absorbed through the intestinal wad.
The correct order are,
C. You take a bite and to chew the complex carbohydrate into smaller pieces.
A.The enzyme, amylase. which is present in saliva breaks potysaccharide chains into disaccharides.
D.Amylase is deactivated by the low pH in the stomach.
B. Other enzymes in the small intestine further break the potysaccharide into monosaccharides
.E. Monosaccharides are absorbed through the intestinal wad
Explanation:
Carbohydrates are complex or large molecules are they are found in rice, bread e.t.c
Digestion of carbohydrates start from the mouth through a process called mastication i.e chewing of the carbohydrates. The salivary gland then secrete the salivary amylase which act on the chewed carbohydrates. The salivary amylase breaks down amylose and amylopectin present in starches into smaller chains of glucose which is called dextrins and maltose. When it get to the stomach, the amylase cannot further break it because it does not work in acidic conditions. The substance form chyme in the upper stomach and pancreatic enzymes act on it to break it down into simple sugar glucose. The pancreatic enzymes include sucrase, maltase and lactase.
Sucrase breakdown sucrose into glucose and fructose, maltase breakdown maltose in two molecules of glucose and lactase breakdown lactose into galactose and glucose. The simple sugar are then absorbed into the blood through the intestinal wall.
HELP HELP HELP ASAP ILL GIVE 100 points
Answer:
What's the question you need help with?? I will try my best to help. I'm not taking free points btw. I'm just wondering on what your question is
Need help ASAP!
Fill in the blanks please for #25, 26, 27, 28, 29, 30.
The answers listed for all of them are:
Glucose
Organism
Plasma membrane
Balance
Homeostasis
Selective permeability
Answer:
Explanation:
#25 - Balance
#26 - Homeostasis
#27 - Glucose
#28 - Plasma Membrane
#29 - Selective Permeability
#30 - Organism
Tides are caused by the gravitational pull of the moon and the sun on Earth's
1. equator
2. land surface
3. poles
4. surface waters
Answer:
surface water
Explanation:
A unicellular protist that carries out the process of photosynthesis would be classified as a...
1) producer
2)saprophyte
3) predator of green algae
4) decomposers of inorganic compounds
Answer:
1) THIS WOULD BE CLASSIFIED AS A PRODUCER.
A unicellular protist that carries out the process of photosynthesis would be classified as a producer.
PRODUCERS:
A producer in an ecosystem is an organism that possess the ability to synthesize their own food. Producers make use of photosynthesis (light energy) or chemosynthesis (chemical compounds) to synthesize their energy source. The energy production that is initiated by producers is transferred in the ecosystem when they are fed on. Examples of producers are green plants, photosynthetic bacteria, algae etc. Therefore, a unicellular protist that carries out the process of photosynthesis would be classified as a producer.Learn more at: https://brainly.com/question/20310424?referrer=searchResults
Which organelle aids in the maintenance of cell homeostasis by selectively regulating The passage of materials into and out of the cell?
A. Plasma membrane
B. Lysosome
C. Ribosome
D. Nuclear membrane
Answer: Plasma Membrane.
Explanation:
Plasma membrane controls what goes in and out of the cell and maintains a stable internal environment.
Lysosomes breaks down dead stuff and can program the cell death.
Ribosomes create proteins.
I just need to know if #21 & 22 are correct :)
Answer:
correct
Explanation:
The atomic number, of an element, indicates
Answer:
The symbol for an atom can be written to show its mass number at the top, and its atomic number at the bottom. To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number.
In the picture,how does the thermal energy definitely flow?
The pleural cavities and the pericardial cavity are located within which larger body cavity?
A. Dorsal cavity
B. Thoracic cavity
C. Abdominopelvic cavity
D. Cranial cavity
Answer:
its B. thoracic cavity.
Explanation:
it is the ventral body chamber that contains the pericardial cavity (the heart) and the pleural cavity (the lungs).
The pleural cavities and the pericardial cavity are located within the Thoracic cavity. Hence option B is correct.
What is the thoracic cavity?The heart, lungs, oesophagus, thymus, sympathetic trunk, and major vessels are all located within the hollow thoracic cavity, which is enclosed by the rib cage and the diaphragm.
The thoracic cavity serves to house and safeguards a number of the body's most important organs and structures. The sternum, costal cartilage, ribs, and the bodies of the thoracic vertebrae make up the rib cage. The rib cage supports the upper extremities, protects the thoracic cavity's internal organs, and aids in breathing.
The thoracic cavity contains the pleural cavities and the pericardial cavity. Therefore, option B is correct.
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help! my mom said im grounded if I don't get a good grade
Answer:
I think c
Step-By-Step equation
sorry if u get it wrong i tried my best
state two ways in which palisade tissue is a dapted for thotosynthesis?
Answer:
Palisade mesophyll cells are closely packed to absorb the maximum light. They are at right angles to the surface of leaf to reduce the number of cross walls. Large vacuole pushes chloroplasts to the edge of a cell. Chloroplasts at edge enable short diffusion path for carbon dioxide and to absorb maximum light.
Which of the following best describes a heritable adaptation brought about by natural selection?
Answer:
polar bears begin to eat goose
Explanation:
What will happen following contraction of the diaphragm
Answer:
Can you provide more details please?
Explanation:
The man is not color blind, but his wife is. They already have one daughter that is color blind and want to know the probability of future children having the disorder. First, you will need to explain to the couple the difference between sex chromosomes and autosomal chromosomes and that color blindness is caused by a recessive mutation in a gene found on the X chromosome. Once they understand this, you can then explain to them the probability of other offspring having the disorder. What is the dilemma in this case and why might you need to suggest to the couple that they see a marriage counselor?
Answer:
It’s not likely to have a color blind daughter from a normal father and with a color blind mother. In order to obtain this disease in females, both parents have to pass one color blind allele or gene along with an X chromosome, but the father in this scenario is not colorblind, so the color blind daughter probably is not a child of theirs.
Hope this helps!!! :)
will mark brainiest and look at the points
Mutations can be either spontaneous (no known cause) or induced (caused by specific environmental agents). What are some environmental agents that could increase the rates of genetic mutations among humans today? What types of mutations have the potential to be the most significant from an evolutionary perspective?
Answer:
Explanation:
Mutations happen spontaneously. The rate of mutation can be increased by environmental factors such as UV radiation , X-rays, gamma rays and certain types of chemicals such as bromine. These are some factor that can increase the rate of mutation
The classic example of evolutionary change in humans is the hemoglobin mutation named HbS that makes red blood cells take on a curved, sickle-like shape. With one copy, it confers resistance to malaria, but with two copies, it causes the illness of sickle-cell anemia. Examples of beneficial mutations include HIV resistance, lactose tolerance, and trichromatic vision.
Explanation:
Look the Mutations happen spontaneosly.So this means that this can increased by the enviromental factors such as Uv radiation, The X-rays, The Gamma Rays, and for last one the certain types of chemicals such as a bromine.These are some factors that increase the rate of the mutation.
So and here is the answer that you was looking for your answer was What are some environmental agents that could increase the rates of genetic mutations among humans today? well im here for teach you and told you or explain you whatever you wanted to call ir im here for teach you The evolutionary change that are in humans is that thing how is called? yes the Hemogoblin and you will say what is that thing why i want to know what is Hemogoblin Well you have to know that that think the hemogoblin is a mutation names "HBS" that makes the red blood cells it's for that reason that is important the "HBS" but there is the bad thing about the hemogoblin it makes the Anemia that is one of the terrible things that can happen to you ok?. Look they are good and bad thing about the Hemogoblin Im going to leave you some good and bad things about the hemogoblin: (But there are things that you have to know first the normal hemogoblin is in your DNA and in your DNA it's called G A G and it has too the C T C in your RNA it's called G A G and finally it nakes the GLU The GLU it's the normal Protein, but the hemogoblin can mutate the cell can get sick and the letters that are like This G A G those are going to change:
C T C They going to change like this:
(mutated)--- -- G T G
C A T (The RNA alsi change) G U G
|
|
\/
Val
(Original No mutated)---- G A G
C T C
G A G
|
|
\/
(GLU)
The GLU is the Original Protein but the Val is the mutated Protein.
Now im going to say good and Bad thing about the Hemogoblin.
Good Things
N1:It creates the Blood cells
N2:Lactose Tolerance
N3-and also the Hemogoblin includes the HIV that is a resistance
Bad things about the Hemogoblin
N1-One of the most bad things of the hemogoblin is the Anemia that is the worst things as i say that can happen to you
and that's all you have to know
PD: I hope you give brainlest i make a whole investigation of that i have to make a hypothesis and everything and im so tired i have been here like 1 hour with 45 minutes.
Which of the following body cavities contains the urinary bladder?
A. Pelvic cavity
B. Vertebral cavity
C. Dorsal cavity
D. Thoracic cavity
Explanation:
[tex]pelvic \: cavity[/tex]
The body cavities contains the urinary bladder is pelvic cavity. Thus, option A is correct.
What is urinary bladder?
Urinary bladder is a temporary storage part for storing urine and it collects urine after that create sensation and than urination is controlled my motor.
The capacity of urinary bladder is 400- 600 mL but it can increases as high upto 1000mL.
The urinary bladder is particularly sac like structure made up of muscle and the shape of it is like a pear. It is present in the pelvic cavity, and the bladder become empty just after urination.
To avoid bladder infection a person must drink proper amount of water, as well as cranberry juice and he must east probiotics and garlics in daily diet.
Therefore,the body cavities contains the urinary bladder is pelvic cavity. Thus, option A is correct.
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define the following term
Answer:
What is the following term?
Explanation:
What you are asking is vague, you should add a term to define.
Though the microbes described in the introductory chapter do not corrode the metal in the subway, many microbes influence corrosion and deterioration of metal and stone. Other microbes have other effects on their environment. During wastewater treatment, bacteria are used to reduce the amount of organic and inorganic materials so that the water no longer supports substantial microbial growth. During secondary wastewater treatment, bacteria within sludge digesters break down organic materials into fatty acids, H2, and CO2. These products are fermented to acetate, CO2, and H2. Finally, archaeans ferment acetate to form methane and carbon dioxide. Just by knowing this information, what is true of the bacteria used in sludge digesters?
a. They are capable of anaerobic metabolism.
b. They are sulfate-reducing bacteria.
c. Some are methanogens.
d. They are capable of forming slime layers.
Answer:
a. They are capable of anaerobic metabolism.
c. Some are methanogens.
Explanation:
The bacteria used in order to treat wastewater can be classified as anaerobic, aerobic, and facultative. Anaerobic bacteria are able to treat wastewater in low or null oxygen conditions by the process of methanogenesis. Methanogenesis is a metabolic process that involves the formation of methane (CH4) by anaerobic Archaea known as methanogens. The process of methanogenesis occurs in anaerobic environments, such as during waste sludge treatment, where these microorganisms are able to breakdown organic pollutants. Methanogens produce methane during catabolic pathways that involve the breakdown of complex molecules into simpler molecules.
What causes nausea and vomiting?
Answer:
my face:(
Explanation:
Henry needs to determine the area of the top of his rectangular
kitchen island that needs retiling. The length of the island top is 35.5 inches. The
width of the island top is 46.75 inches. What is the area of Henry's rectangular
kitchen island top?
Answer:
Explanation:
hey
The area of Henry's rectangular kitchen island top is found to be 1,659.62 inches.
What is the area of the rectangle?The area of the rectangle may be defined as the region which is correspondingly occupied by a rectangle within its four sides or boundaries. The area of a rectangle relies on its sides. Basically, the formula for area is equal to the product of the length and breadth of the rectangle.
The area of the rectangle may be calculated by the following formula:
Area of rectangle = Length × Breadth (multiply the length of the rectangle by the width of the rectangle).Now, according to the question,
The length of the rectangular kitchen = 35.5 inches.
The breadth of the width of island top = 46.75 inches.
∴ Area = 35.5 × 46.75 = 1,659.62 inches.
Therefore, the area of Henry's rectangular kitchen island top is found to be 1,659.62 inches.
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Welp which chicken wing is this chart describing left or right chicken wing explain ur answer I'm definitely gonna get a zero
The diagram shows the life cycle of a pine tree. What does stage 5 show?
A.) Young female cones produce spores from cells that divide using meiosis.
B.) A spore divides and grows into a pollen grain using mitosis.
C.) Young male cones produce spores using meiosis.
D.) A seed develops after the sperm from a pollen grain fertilizes the egg in an ovule.
Answer:
A
Explanation:
i took this quiz and I am pretty sure it is A
please dont be mad if it wrong
Stage 5 could represent "Young female cones produce spores from cells that divide using meiosis" (option A).
What is the life cycle of a pine tree?The life cycle of a pine tree begins with the production of male and female cones on the tree. Male cones produce pollen grains, which contain the male gametes or sperm cells, while female cones produce ovules, which contain the female gametes or egg cells. Pollen grains are carried by the wind and land on the female cones, where they fertilize the egg cells.
The fertilized egg cells then develop into seeds, which are protected by the woody scales of the cone. The cones mature and open, releasing the seeds, which can be dispersed by the wind, animals or gravity. The seeds then germinate and grow into seedlings, which develop into juvenile trees.
As the tree grows, it produces more cones, and the cycle repeats itself, ensuring the continued propagation of the species. This cycle can take several years to complete, depending on the species of pine tree.
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in what stage of mitosis is this cell going through?
Answer:
Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations.
It has four stages,
1- Prophase: The chromosomes are condensed into the X-shaped structures that can be easily seen under a microscope.
2- Metaphase: The chromosomes come end-to-end at the center (equator) of the cell.
3- Anaphase: In this Phase, The sister chromatids are pulled apart by the mitotic spindle to the opposite poles. One spindle fiber pull a chromosome to one pole and other spindle fiber to the other pole.
4- Telophase: At each pole of the cell a full set of chromosomes gather together.
_____________________________________As we can see that the chromosomes are densed in the middle so it shows that the cell is dividing by the mitotic division and it is under the mitotic phase
_____________________________________A relationship between organisms where one member benefits and the other is harmed is called ______.
Answer:
Parasitism
Explanation:
Parasitism is a symbiotic relationship between two species in which one benefits and the other is harmed.
which of the following structures are present in plant cells but absent in animal cells ?
Answer:
Plant cells have a large central vacuole, a cell wall, and chloroplasts while animal cells do not.
Hope this helps!
Answer:
Chloroplasts and a cell wall
Explanation:
Without any answer choices to pick from these are the best two answers I can provide. A cell wall is used to protect the innerds of a plant cell as where animal cells have rough and soft ET along with sheaths. Presuming that this is for a high-school biology class I would say that the cell wall is not present in an animal cell yet present in a plant cell. Hope this clears things up.
