A student decides to dissolve crackers in their soup as fast as possible. After increasing the surface area of the crackers, they want to allow more molecules of the soup to come in contact with the crackers.
What should be done next?
let the soup sit a few minutes
add salt to the soup
stir the soup with a spoon
cover the soup
Answers
Answer:
They can let the cracker sit in the soup for a few minutes
Answer:
stir the soup with the spoon
Explanation:
the crackers dissolve and disapear
Related Questions
A small gap is left between the rails in the railway track. Analyze the reason.
Answers
Answer:
There could be several possible reasons for a small gap between rails on a railway track, such as:
1. Expansion joints: Railways are designed to allow the tracks to expand and contract with changes in temperature. To accommodate this expansion, small gaps are left between the rail ends and filled with expansion joints or plates.
2. Wear and tear: Over time, the rails may experience wear and tear due to heavy loads, weather conditions, and other factors. As a result, small gaps can appear between the rails.
3. Maintenance: During maintenance activities, rail tracks may be adjusted or replaced, which could lead to small gaps between the rails.
4. Environmental factors: Environmental factors such as soil shifts, earthquakes or other natural disasters can also affect the alignment of the rails, leading to small gaps.
These are some of the possible reasons for a small gap between the rails on a railway track.
Answer:
The small gap left between the rails in a railway track is intentional and serves a specific purpose. This gap is known as the rail joint, and it allows for the expansion and contraction of the rails due to changes in temperature. When the temperature changes, the metal rails will expand or contract, and if they were joined together tightly, they could buckle or become deformed, which could be dangerous for trains passing over them. The rail joint allows the rails to move slightly and prevent damage to the track.
Additionally, the rail joint also allows for maintenance and repairs of the track. If there were no gap between the rails, it would be challenging to replace a damaged rail or perform routine maintenance, such as tightening bolts or lubricating joints. With the rail joint, maintenance personnel can easily access and work on the track.
Overall, the small gap left between the rails in a railway track is intentional and serves a crucial function in ensuring the safety and reliability of the track.
A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of water. Which investigation method should the student use?(1 point)
a. She should drop two balls of the same mass from different Hights.
b.she should drop two balls with different masses from the same Hights
c.she should drop two balls with different masses from different Hights
d.she should drop two balls of the same mass from the same Hights
Answers
Someone please help me with this question.
Keith is investigating how elements combine to form different types of matter. Write a statement regarding natter that is true.
A. Atoms can combine to form compounds.
B. The element make up the building blocks of all matter.
C. Every atom will bond to achieve a stable neutron-proton ratio.
D. There are more than 100 naturally occurring elements that make up all matter.
Answers
Answer:
D. There are more than 100 naturally occurring elements that make up all matter.
Explanation:
All matter is made up of elements, which are substances that cannot be broken down into simpler substances by chemical means. There are more than 100 naturally occurring elements, each with its own unique properties and characteristics. These elements combine to form compounds, which are substances made up of two or more elements that are chemically combined in a specific ratio. For example, water is a compound made up of two hydrogen atoms and one oxygen atom. Atoms can bond with each other in various ways to form compounds, but they do not always bond to achieve a stable neutron-proton ratio. The stability of an atom or compound depends on a variety of factors, including the arrangement of its electrons and the nature of the chemical bonds it forms with other atoms.
Answer:
D. There are more than 100 naturally occurring elements that make up all matter.
Water is one of the most important things to you, and to all living things. The fact that you can measure the volume of room temperature water with a beaker is a clue that room temperature water is in liquid form. If you keep raising the temperature of that water, it will eventually begin to boil, bubbling up and releasing steam. The steam is an example of what? *
Answers
Answer:
steam is and example of vapor and gas.
Answer:
evaporation
Explanation:
because the water boils and steam leave so it's evaporation
there's no science in the pick a subject, so i chose chemistry. NEED HELP ASAP
Answers
Answer:Trade winds blowing in a curved manner
Explanation:Because i like the answer
Electrical resistance is a measure of resistance to the flow of _?____
pleasee help
Answers
Answer:
Electrical resistance is a measure of resistance to the flow of electric current.
I Hope This Helps!
If density is calculated by mass divided by volume and the mass increases, what would happen to the density of an object?
Would it increase or decrease?
Answers
Write TWO examples of Newton's third law in "The Martian."
For every action force, there is an equal and opposite reaction force.
Answers
Answer:
Newton's Third Law is showed when they use the air lock to slow down the velocity. The action is the air shooting out from the ship and the reaction is the velocity slowing down. Another action would be the bomb making the whole in the airlock door which will have a reaction of the ship slowing down
Explanation:
Newton's Third Law is showed when they use the air lock to slow down the velocity. The action is the air shooting out from the ship and the reaction is the velocity slowing down.
What is Newton's Third law?Newton's Third Law is defined as when two bodies come into contact, they exert forces on one another that are both equal in strength and directed in opposing directions.
Ball bouncing: When a ball strikes the ground, it exerts action force on the surface. The ball bounces back as a result of the ground's reaction force. A bird's wings act as an action force, pushing air downward, and act as a reaction force, pushing the bird upward.
Thus, Newton's Third Law is showed when they use the air lock to slow down the velocity. The action is the air shooting out from the ship and the reaction is the velocity slowing down.
To learn more about Newton's Third Law, refer to the link below:
https://brainly.com/question/23772134
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List three facts or accomplishments of Modern India (India today)
Answers
Answer:
India is one of the oldest countries in the world and is found in the Asian continent of the world.
They are known as the most populous country in the world.
They also have a greater linguistic diversity than any other large country. Lots of languages are available and accepted in the country.
They are very vast in Agriculture and accounts for 40percent of Mango production in the world
Explanation:
India is the largest producer. India is also the world's largest tea and spices producer. The country manufactures many pharmaceuticals, textiles, and electric goods that are used worldwide. More people in India have access to phones than to sewage systems.
PLEASE HELP ME ASAP!!! THIS IS DUE IN 1 HOUR!!!
MONDAY-Explain how you find the volume of an object. (be detailed)
Answers
Jerome is learning how the model of the atom has changed over time as new evidence was gathered. He has images of four models of the atom, but they are not in the correct order.
In what order should Jerome put these models to show the development from the earliest model of the atom to the most recent one?
Y, X, Z, W
Y, Z, W, X
W, Z, X, Y
W, Y, Z, X
Answers
Answer:
A.
Explanation:
The two products that are formed when a solution of HNO3 and a solution of NaOH react are water and?
NaNO2
NaNO3
NaHNO
NaHNO3
Answers
Answer:
NaNO3
Explanation:
Hello,
In this case, the required reaction is an acid-base neutralization reaction which is said to be:
\(HNO_3+NaOH\rightarrow NaNO_3+H_2O\)
There, we see that the sodium displaced the hydrogen in the nitric acid to form sodium nitrate a very used salt in the industry, so, as a result of that displacement, water is formed as the secondary neutralization product. For the above mentioned, answer is NaNO3 .
Best regards.
Answer: NaNO3
Explanation:
A salt sodium nitrate (NaNO3) is formed alongside water (H2O) when HNO3 and a solution of NaOH undergoes a neutralization reaction.
HNO3 + NaOH --------> NaNO3 + H2O
All of the following use digitized signals to encode and transmit information EXCEPT:
Select one:
Fiber optic cables
Record players
Wi-Fi devices
Flat screen TVs
Answers
Answer:
Record players
Explanation:
In a record player, a stylus vibrates as it follows a spiral groove cut into the surface of the rotating record.
The vibrations (analogue) are converted into electrical signals and fed into an amplifier to produce the sounds you hear
Fiber optic cables, Wi-Fi devices, and flat screen TVs use digitized signals to encode and transmit information
help. need help. dying inside, help.
Answers
Explanation
Electron = tiny mass
Proton = Large Mass
Neutron = Large Mass
It’s more complicated but that’s how I got the Awnser
whats the primarry reason for a diffrence in climate between new york and florida
Answers
Answer:
Explanation:
Florida is much closer to the sun as compared to New York and seems to be much warmer as compared to New York even in winter and summer because of the latitude.
Answer: Florida is much closer to the sun as compared to New York and seems to be much warmer as compared to New York even in winter and summer because of the latitude.
Explanation:
What was one was one important impact of Supreme Court's ruling in Bush v. Gore
Answers
Answer: the answer is b or c
Explanation:
I took it
Write a lab report on the lab ¨How do the process of conduction, convection, and radiation help distribute energy on earth.¨ for edge 1. Purpose- state the purpose of the lab.
2. Hypothesis- (Use if, then, because in your statement)
3. Materials- list all materials used in the lab
4. Procedures- state step by step what is being done in the lab
5. Observation/data- state what is being measured
6. Analysis/conclusion-state by summing up what was done in the lab and evaluate your
hypothesis with what actually happened
Answers
Answer: The sections of a lab report can vary between scientific fields and course requirements, but they usually contain the purpose, methods, and findings of a lab experiment. Each section of a lab report has its own purpose. 1. Title: expresses the topic of your study 2. Abstract: summarizes your research aims, methods, results, and conclusions
Explanation:
Which of these is an example of power?
A) you carry your books across the room
B) you sweep the floor using a push broom
C) you push a boulder and it does not budge
D) you run up the stairs in three seconds
Answers
Answer: D) You run up the stairs in 3 seconds.
What is Power?Power is the rate at which work is done.
ExplanationSense it said the rate of which the work was done (3 seconds) that would be the answer.
I need help quickly, this assignment is due in a few hours. I have a few 8th grade science questions I need help with. These is not need to explain your answer, just tell me if the answer is a,b, or c. Also, please answer all of the questions listed not just some of them. I will be giving 20 points if you answer, and brainly to the first person to answer. The questions look really complicated but it is mainly just a long description. The questions themselves seem simple.
QUESTION ONE : Miranda was learning to bake bread at home. Her first few batches of dough did not rise, or expand, as much as they should have. Miranda's mother noted that the kitchen was cold and suggested that the dough might not be warm enough to rise. Miranda decided to test her mother's suggestion. She made a large batch of dough and divided it into six equal-sized balls. Then, she put each ball into a bowl. She left three bowls on the counter in the kitchen, where the temperature was 63oF. She left the other three bowls on her desk in her upstairs bedroom, where the temperature was 80F. After one hour, Miranda measured the size of each dough ball.
Which of the following was the dependent variable in the experiment?
a. the temperature where the dough was left to rise
b. the ingredients used to make the dough
c. the size of each dough ball
QUESTION TWO: Jada liked to make guacamole, but she could often find only unripe avocados at the grocery store. In biology class, Jada learned that ripe fruits produce a gas called ethylene that can cause other fruits to ripen. Jada wondered whether storing ripe bananas with unripe avocados would make the avocados ripen faster. Jada prepared four paper bags with five unripe avocados in each bag. She added on ripe banana to two of the bags. Then, Jada sealed all four bags. After three days, she opened each bag and counted the number of ripe avocados in each bag.
Which of the following was the independent variable in this experiment?
a. the type of paper bag used
b. the number of bags with a ripe banana
c. the number of ripe avocados
QUESTION THREE: Colette was using steel to make rusted sculptures. After building each sculpture, she caused the steel in the sculpture to rust by placing it into tub filled with salt water for eight hours. Colette wondered if steel would rust faster submerged in vinegar instead of salt water. To find out, Colette cut ten squares of steel sheet metal and split them into two equal groups. She put one group of squares into a tub filled with salt water and the other group of squares into a tub filled with vinegar. Once an hour for eight hours, Colette counted the number of rusted steel squares in each group.
Which of the following was a variable that was held constant (control variable) in this experiment?
a. the type of liquid used
b. the size of the squares of steel sheet metal
c. the number of rusted steel squares
QUESTION FOUR: David divided 40 unripe bananas evenly among eight paper bags and sealed the bags. He poked 20 small holes in four of the bags and left the other four without holes. He kept the bags at room temperature for three days. Then, David opened the bags and counted the number of brown spots on each banana. He compared the average number of brown spots on bananas from bags with holes to the average number of brown spots on bananas from bags without holes.
Identify the question that David's experiment can best answer.
a. Do bananas develop more brown spots when they are kept at room temperature compared to in a cold refrigerator?
b. Do bananas develop more brown spots if they are kept in bags with holes compared to bags without holes?
c. Do bananas develop more brown spots when they are kept in brown paper bags compared to in a plastic bag?
QUESTION FIVE: Ten groups of chemistry students combined three solutions that, when mixed, chemically reacted and turned blue. Before mixing, five groups of students heated the solutions to 25C, and five other groups heated the solutions to 50C. The students recorded how many seconds it took for the mixtures to turn blue. Then, the groups shared their results, and the class compared the time it took for the mixtures to turn blue at 25C and at 50C.
Identify the question that the students' experiment can best answer.
a. Does the type of color the mixture produces depend on the temperature of the solutions?
b. Does the mixture of solutions release more gas when they are mixed at 25C compared to 50C?
c. Does the mixture's color change faster when the solutions are mixed at 25C or 50C?
Answers
Question 2: A
Question 3: B
Question 4: B
Question 5: C
How does being able to understand the interactions of natural systems, such as weather, benefit society? How are the scientific practices of analyzing data and observation helpful in understanding how natural systems work? Record your evidence.
PLS HELP ME I'LL GIVE U bRAINLIES IT U DO JUST PLS HELP-
Answers
They show you how to work with it
Explanation:
Analyzing data and observing these natural systems helps people understand them because these systems change over time. Observing and measuring changes over days, weeks, months, etc. helps people grasp how these systems change and what may cause these changes. Collecting data on natural systems is an important step towards a better understanding, as these systems will occur regardless of human will.
I HOPE THIS HELPS IDRK WHAT THIS IS SUPPOSED TO BE ABOUT
What happens to air pressure and amount of oxygen as the altitude increases in Earth's atmosphere? 1. Air pressure decreases, while the amount of oxygen increases. 2. Both air pressure and the amount of oxygen increase. 3. Air pressure increases, while the oxygen decreases. 4. Both air and oxygen decrease.
Answers
Answer:
As altitude increases in Earth's atmosphere, both air pressure and the amount of oxygen decrease.
At sea level, the air pressure is about 1013.25 millibars (mb) and the concentration of oxygen is about 21%. As you go higher in the atmosphere, the air becomes thinner and less dense, so the air pressure decreases. At the same time, the concentration of oxygen also decreases because there is less air overall to contain oxygen molecules.
This is why it is harder to breathe at high altitudes, such as on a mountain. The air is less dense, so there are fewer oxygen molecules per breath and the body has to work harder to get enough oxygen.
Answer:4: Both Air and Oxygen decrease.
Explanation:This is in accordance with Henry's law. As pressure decreases solubility of gases decreases. Air pressure decreases as we altitude increases and the decrease in oxygen level is the consequence ,
please help as soon as possible!
Answers
Answer:
4 because CoCO2 is in a degree And it’s all four different elements
1. Calculate the frequency of each of the waves below. Make sure to include units in your answers.
Number of Wave Crests
Amount of Time Frequency
10 10 s
Answers
Calculate the volume (in cm3
) of 54 g
of water at 1 ∘C
.
Express the volume in cubic centimeters to two significant figures.
Answers
Thermal energy is the _____ of the kinetic and potential energies of all particles in an object.
Question 2 options:
difference
multiplication
sum
Answers
Answer:
sum
Explanation:
Pls HELPPP
Which statement describes how diffusion works?
Molecules always move from inside of the cell to outside of the cell.
Molecules always move from areas of high concentration to low concentration.
Molecules always move from areas of low concentration to high concentration.
Molecules always move from of outside the cell to inside of the cell.
WHO ALSO LIKE ANIME???
Answers
maybe c
Explanation:
I'm not sure but maybe
The solution always want to be balanced, so if you have more, let’s say salt inside the cell, then the salt will flow through the membrane to the outer less salty solution until the salt level both inside and out the cell are equal.
Explain why some gases are considered molecules but not compunds
Answers
Somes gases are considered molecules but not compounds because compounds are made up of atoms of different elements.
A molecule is made up of any two atoms together. A molecule consisting of atoms from various elements is referred to as a compound.
However, we can call all molecules compounds, but not all compounds molecules. Since hydrogen gas (H2) only contains one element, it is a molecule rather than a compound.
Two identical atoms can combine to form a molecule, as occurs when two oxygen atoms combine to form an oxygen molecule. All compounds, however, have two or more atoms of distinct kinds.
Example of molecules gases : Hydrogen gas (H2) Nitrogen gas (N2) Oxygen gas (O2) Chlorine gas (Cl2)
Example of compound gases : Ammonia NH3,
Methane CH4, Nitrous oxide N2O, Salt NaCl.
To know more about molecules & compounds click at https://brainly.com/question/25465587
Answer: Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds. Hydrogen gas (H2) is a molecule, but not a compound because it is made of only one element.
Explaination: All compounds are molecules, but not all molecules are compounds. That is because a molecule can be made up of two atoms of the same kind, as when two oxygen atoms bind together to make an oxygen molecule. However, all compounds are made up of two or more different types of atoms.
PLZ HELP I WILL GIVE BRAINLY AND POINTS
Put the steps of the scientific method into the correct order.
Devise an experiment to prove or disprove.
State conclusions.
Conduct a literature search.
Define the problem.
Propose a hypothesis.
Answers
Answer:
1. Define the problem
2. Conduct a literature search
3. Propose a hypothesis
4. Devise an experiment to prove or disprove
5. State conclusions
Explanation: In order to begin an experiment, you must first define a problem or question that you will be answering. Then you must research the problem in order to form a hypothesis, or an educated guess. Then you should devise and execute an experiment to answer your question. The conclusions that you draw will either prove or disprove your hypothesis. Hope this helps!
2. Hypothesis
3. Search
4. Experiment
5. Conclusion
Provide the correct molecular formula for the following compounds for nickel (IV) iodite
Answers
Answer:
N i ( C 2 H 3 O 2 ) 4
Explanation:
The molecular formula for nickel (IV) iodite is Ni(IO4)2
The correct molecular formula for nickel (IV) iodite is Ni(IO4)2. In this compound, the nickel ion (Ni) has a charge of +4, indicated by the Roman numeral IV. The iodite ion (IO4) carries a charge of -1. To balance the charges, two iodite ions are needed for every nickel ion. The formula reflects this by including the subscripts 2 after both the iodite ion (IO4) and the nickel ion (Ni). Therefore, the molecular formula for nickel (IV) iodite is Ni(IO4)2, indicating the presence of one nickel ion and two iodite ions in the compound.
To better understand the molecular formula:
https://brainly.com/question/33747620
Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)
Answers
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.