Answer:
Oct 27, 2015 · CH_4 For this kind of problem, you can assume that the weight of the unknown sample is 100g ( since 75% C + 25% H = 100%). Thus, weight of C = 75g weight of H = 25g Since chemical formulas deal with number of moles rather than weight in grams, you need to convert each element by multiplying it to their respective atomic masses.
Explanation:
The empirical formular i H₂SO₄
The first step is to calculate the compound by the molar mass
Hydrogen, Sulphur, Oxygen
4.03/1 , 64.14/32 , 128/16
4.03 , 2 , 8
Divide by the lowest value
4.03/2 , 2/2 , 8/2
2, 1 , 4
H₂SO₄
Hence the empirical formula is H₂SO₄
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What does the graph tell you about the concentration of salt inside the cell?
Answer:
So,
Assuming that the plasma membrane is either semipermeable or fully permeable, either diffusion or osmosis will even out the concentration eventually. Therefore, options A and B are eliminated.
The only options left both say that osmosis will take place. We know that osmosis will always move the solvent from an area of low solute concentration (outside the cell) to an area of high solute concentration (inside the cell). Thus, water will move into the cell through osmosis. That is option C.
If the cell cannot get rid of the water quickly enough, the cell will explode by cytolysis.
Explanation:
As the space between particles increases , the ____ increases
Answer:
Explanation:
The distance between the particles increases greatly, and the attractive forces between the particles decreases. an the molecules increase
Which of the following emotions is the last to develop in an infant?
Select one:
a. pride
b. fear of strangers
c. anger
d. curiosity
Pride is the last emotion to develop in an infant. So the correct option is A.
When do emotions develop in an infant?
From the moment of birth, babies are able to convey their curiosity, pain, disgust, and enjoyment through their body language and facial expressions. Around 2 to 3 months old, babies start smiling spontaneously, and around 4 months old, they start laughing. Infants also display other emotions, such as anger, sadness, surprise, and fear, between the ages of 2 and 6 months. Babies start to show signs of stranger fear between the ages of 5 and 6 months.
They will express their displeasure openly when someone holds or plays with them since they do not enjoy it. They used to grin at everyone and let people hold them. Babies are nevertheless learning at this time how to recognize the sentiments of others as well as how to express their own. Infants can start recognizing the various emotional emotions of others at the age of 4 months. Babies don't start mimicking emotions and facial expressions until they are approximately 6 months old.
Babies generally treat their caretakers interchangeably at birth because they lack the ability to recognize individual differences. They do, however, start to develop a strong attachment or relationship with their primary caretakers as the months of their first-year pass and their perceptual and processing capacities advance.
Therefore, the correct option is A.
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How many different types of tissue cells are there in humans?
A. 2,000
B. 20,000
C. 20
D. 200
Answer:
200
.........................................
1)What are some examples of specialized cells
and what do they do?
2) Why is the specialization of cells in organisms
significant and important for homeostasis?
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why cellular respiration and photosynthesis are a
cycle?
Answer: Cellular respiration and photosynthesis are considered a cycle because the product (end material) of one reaction serves as the starting material for the other reaction. The starting material for cellular respiration is sugar and water and the products are carbon dioxide and water.
Explanation: hope it helped
Which neurologic disorder is characterized by cortical nerve cell processes that have become twisted and dilated
Answer:
Alzheimer disease is a neurologic disorder characterized by cortical nerve cell processes that have become twisted and dilated
Explanation:
I hope this helps!
PLEASE SOMEONE HELP ME PLZ!!!!!Photosynthesis is/ is not an example of the Law of Conversation of Mass
Evidence and Reasoning
Answer:
Evidence and Reasoning
Explanation:
Photosynthesis converts water, sunlight, and CO2 into plant food.
21. Which of the following is not a biologically important property of water?
A. Has a low heat of vaporization
B. Acts as an excellent solvent for polar and ionic substances,
2. Has a high specific heat,
D. Is less dense as a solid that as a liquid,
Answer: A because water has a high heat vaporization
might be wrong
Explanation:
What protein is critical to the function of compact bones?
Please answer
Right the kingdoms for different categories for example if eubacteria is prokaryotic or eukaryotic.
Eubacteria: Prokaryotic - Single Celled - Consumers
Protista; Eukaryotic - Multicellular - Consumers
Fungi: Eukaryotic - Multicellular - Consumers
Plantae: Eukaryotic - Multicellular - Producers
Animalia: Eukaryotic - Multicellular - Consumer
why cellular respiration and photosynthesis are a
cycle.
Cellular respiration and photosynthesis are referred to as a cycle because the end product of one process serves as the starting material for the next reaction. During cellular respiration, sugar and water are the starting materials, and carbon dioxide and water are the byproducts. Water and carbon dioxide are the starting material for photosynthesis.
ExplanationA cycle is a series of steps that are repeated, which defines this! :)
As soon as you realize that you are in danger, you feel your heart speed up. You feel very aware of your surroundings. Your whole body is preparing to run and fight for your life. Read the phrases that describe the body's response to sudden stress. Place the letter of the correct response to its corresponding system. One choice has 2 answers!
____ Respiratory ____ Nervous
____ muscular and skeletal ____ Circulatory
A) heart rate speeds up
B) body moves to a safer place
C) senses become sharper
D) stress hormones are transported around the body
E) breathing is faster, lungs open up to take in more air
Answer:
Respiratory: E
Nervous: C
Muscular and Skeletal: B
Circulatory: A and D
In Figure 7-2, which picture shows ice wedging: A, B, or C?
Answer:
In Figure 7-2, which picture shows ice wedging: A, B, or C?
The picture that shows ice wedging is A.
Explanation:
I did the test and got it right with the answer above.
Part D
What did the video mean when it used the phrase “citizen-scientists”? How can citizens-scientists help with the prediction of future earthquakes?
Answer:
Citizen-scientists are people who are not scientists but have an interest in science. In the case of earthquake detection, citizen-scientists help collect data. Their efforts can help scientists develop effective earthquake warning systems down the road.
Explanation:
PLATO answer
Answer:
Citizen- scientist are people who are not scientist but think science is a amazing, They can help with detecting the earthquake as well they can also help with data and things like that, and all their efforts will help scientist along the way.
this is the edmentum Answer I just rephrased it
the offspring resulting from a cross between two organisms differing in one or more genes
Answer:
In other cases, each parent provides a different allele of a given gene, and the offspring is referred to as heterozygous ("hetero" meaning "different") for that allele.WILL MARK BRAINLYIST!! (if mostly/ all correct)
1. According to the article "Drilling down into petroleum's impact on life on Earth", Peak oil is measured in RPRs (reserve-to-production ratios), which is recorded in years.
Question: Why does Iran have a higher RPR (80 years) than the United States (9 years)?
A. The United States consumes more oil than Iran.
B. Iran consumes more oil than the United States.
C. Iran produces more oil than the United States.
D. The United States produces more oil than Iran.
2. According to the article "Drilling down into petroleum's impact on life on Earth", carbon is a natural element that regulates Earth's temperature and makes the planet livable.
Question: Which event has led to major shifts in the carbon cycle becoming?
A. Peak oil has been reached this past decade.
B. Humans learned how to extract and burn fuel.
C. The API established units of measurement for oil.
D. Ancient algae and plankton were buried and crushed.
3.According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how have humans impacted the Amazon rain forest in the last 50 years?
1. 20% of the rain forest is gone (Correct)
2. There are more roads and people there (correct)
3. Over half of the rain forest is protected (correct)
4. Extinct species have been reintroduced (NOT correct)
A. 1, 3 and 4
B. 1, 2 and 3 "correct answer" (ITS THIS ONE. B OR 1,2 and 3!!!)
C. 2, 3 and 4
D. 1. 2 and 4
4. According to the article "Ask an Amazon Expert: Why we can't afford to lose the rain forest", how is the Amazon rain forest connected to climate change?
A. Trees of the Amazon remove carbon dioxide from the air.
B. People of the Amazon produce most of the carbon dioxide that causes climate change.
C.Soil in the Amazon absorbs carbon dioxide.
D. Water in the Amazon River produces carbon dioxide, adding to climate change.
5. Which selection from the article "Scientists study Persian Gulf reefs for coral survival clues" identifies the biggest threat to coral reefs?
A. Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
B. The researchers demonstrated that this new organism was the most commonly found algae throughout the gulf's coral reefs. They say it probably adapted as a result of the gulf's harsh conditions.
Answer:a d. c on second?
Explanation: United States produces more oil than most country's the states use more oil than iran
I need help with question 18 the question is below are functions of y=[x] and y=[x] -3 how are the functions related
Answer:
The first one
Answer:
I'd say it's the first option.
Explanation:
If you look at the units for each graph, the lines are both going up 1 and over 1, so this means their slopes are the same.The y-intercept of y[x] is 0, because if you look at the first graph, that's where both lines intercept the y-axis.The second function's y-intercept is in fact -3 because, that's where those lines intercept the y-axis.Hope this helps you :)
4.4. Define Specialized cells
NEED NOW
Answer:
Cells specifically made to do their certain job
Explanation:
Im not sure
why do muscle cells have more mitochondria than the other types of cells?
Answer:
Muscles require more and quicker release of energy.
Explanation:
Muscles need energy quickly and in high amounts so more mitochondria are needed to fulfill this energy demand.
What type of tissue surrounds the slip disc with age epithelial tissue?
Answer:
It is Cartilage.
Write a sentence that relates your model to processes that take place inside your own cells. Your answer should include some form of the terms mitosis, nucleus, and cell division.
Answer: Cell division or mitosis is a nuclear cell division that results to two daughter cells having the same genetic code as the parent cell. The division starts at the nucleus. The chromosomes divide into two and a spindle is formed at middle of the cell. The spindle shortens and breaks resulting to two daughter cells.
Explanation:
Cellulose is a polysaccharide (carbohydrate) and is a basic structural
component that makes up plant cell walls. Decomposers, such as bacteria and
fungi, produce cellulase to quickly break down cellulose. Cellulase is a(n)
hansport protein
Struttura Proton
Hormone
Enzyme
Answer:
Enzymes
Explanation:
A family of hydrolytic enzymes known as cellulases is responsible for the cellulolysis or hydrolysis of the polysaccharide cellulose, which results in the formation of monosaccharides such as glucose and shorter polysaccharides and oligosaccharides. Because of their numerous applications, these enzymes have a significant economic impact on the world.
What effect would the removal of a nucleotide have on the protein?
Nucleotides are referred to by_____they contain .
Answer:
Nucleotides are referred to by dideoxynucleotides they contain.
Proszeee o poommoooc
Answer:
Explanation: Proszeee o poommoooc
I need help question 15
Answer:
Perpendicular
Explanation:
The lines for both equations intersect.
Answer:
perpendicular
Explanation:
-2x+6y=3 ------> y=1/3x+13
It is flipped and as opposite sign.
how can natural disasters hurt the balance between biotic and abiotic elements??? I need an answer soon pleaseeeee!!! I know how it would affect the biotic and abiotic elements but the balance?!?
Answer:
Earthquakes, landslides, volcanic eruptions and natural bush fires all affect the many different ecosystems on our planet. Initially, these disasters negatively affect the biodiversity of wetlands, forests and coastal systems by causing the spread of invasive species, mass species mortality and loss of habitat.
Why shoud temperature and oxygen be measured in a fish salinity tolerance experiment?
First, the solubility of oxygen decreases as temperature increases ¹. This means that warmer surface water requires less dissolved oxygen to reach 100% air saturation than does deeper, cooler water.
The video mentioned that there are two types of seismic waves that occur in the ground during an earthquake, primary (P
waves) and secondary (s waves). What important differences are there between P waves and S waves?
Answer:
P waves are longitudinal, whereas S waves are transverse.
P waves can travel through solids and liquids, whereas S waves can only travel through solids (this is why it can't travel through the core and the waves refract).
P waves travel faster than S waves.
Answer:
P waves travel faster and are less damaging than S waves.
Explanation:
Exact answer from Edmentum