A 200 g sample of water at 60.0 degrees Celsius is heated to water vapor at 140.0 degrees Celsius. Expected Answer = 501,440 J Before trying to solve this problem, explain:
what is happening to the water from 60.0 degrees Celsius to 100.0 degrees Celsius?
what happens at 100.0 degrees Celsius?
what happens from 100.0 degrees Celsius to 140.0 degrees Celsius?
Then solve the full problem, showing work & units.
Answers
Related Questions
Humans ____ which organisms will reproduce to create desired offspring.
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helpppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Answer:
A.
Explanation:
thnx for the brinliest
What element is represented by this diagram?
Answers
Answer:
Beryllium
Explanation:
It is the element with 4 protons 5 neutrons an 2 outer electrons
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How does a balanced chemical equation prove the Law of Conservation of matter?
Answers
Answer:
Every chemical equation follows to the law of conservation of mass, which states that matter cannot be created or destroyed. When you have an equal number of atoms of an element is present on both sides of a chemical equation, the equation is balanced therefore it is following the law of conservation of mass.
Explanation:
Answer:
A balanced chemical proves the Law of Conservation of Matter because the law stats that matter cannot be created nor destroyed. so, in every chemical reaction the amount of matter will stay the same in the product as it did in the reactant.
In other words, balanced chem equations show that mass in conserved in chemical reactions
hope this helped:)
Explanation:
PLZ HELP IM FAILING SCIENCE
Scientists hope to use aerogels to aid in oil spill cleaning process by floating aerogels on water where oil has been spilled. For this to occur how would the density of aerogels compare to the density of seawater? a a. The mass of aerogels must be larger. b b. The volume and mass of aerogels must be larger c c. For the same mass, the aerogel must take up less space. d d. For the same volume, the aerogel must have a smaller mass.
I WILL GIVE BRAINLIEST
Answers
Answer:
Cleaning up oil spills and metal contaminates in a low-impact, sustainable and inexpensive manner remains a challenge for companies and governments globally.
But a group of researchers at UW–Madison is examining alternative materials that can be modified to absorb oil and chemicals. If further developed, the technology may offer a cheaper and “greener” method to absorb oil and heavy metals from water and other surfaces.
Aerogels, which are highly porous materials and the lightest solids in existence, are already used in a variety of applications, ranging from insulation and aerospace materials to thickening agents in paints. The aerogel prepared in Gong’s lab is made of cellulose nanofibrils (sustainable wood-based materials) and an environmentally friendly polymer. Furthermore, these cellulose-based aerogels are made using an environmentally friendly freeze-drying process without the use of organic solvents.
It’s the combination of this “greener"material and its high performance that got Gong’s attention.
“For this material, one unique property is that it has superior absorbing ability for organic solvents — up to nearly 100 times its own weight,” she says. “It also has strong absorbing ability for metal ions.”
Treating the cellulose-based aerogel with specific types of silane after it is made through the freeze-drying process is a key step that gives the aerogel its water-repelling and oil-absorbing properties.
Kyle is swinging at the playground. As he moves from the top of the swing to the bottom he will _____.
a. lose potential energy and gain kinetic energy
b. gain potential energy and lose kinetic energy
c. change kinetic energy into mechanical energy
d. change potential energy into mechanical energy
Answers
Explanation:
dont trust me but i think its A
Answer:
b. gain potential energy and lose kinetic energy
Explanation:
I could be wrong but heres a definition of each word. Potential energy is the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors. Kinetic energy is energy which a body possesses by virtue of being in motion.
THIS IS A REPOST I WILL STILL GIVE BRAINLIEST FOR ALL ANSWERED QUESTIONS
Directions: Identify the manipulated variable and responding variable for each hypothesis.
HINT: If (fill in manipulated variable), then (fill in responding variable)
1. If plants are watered, then growth height will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________
2. If chocolate is given to teachers, then amount of homework will decrease.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________
3. If trees have leaves, then bird nests will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________
4. If acid rain is in water, then fish population will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________
5. If calcium is given, then bone strength will increase.
Manipulated variable: ________________________________________________________________________
Responding variable: ________________________________________________________________________
Answers
1. Manipulated: Water
Responding: Growth Height
2. Manipulated: Chocolate Given
Responding: Amount of Homework
3. Manipulated: Trees with Leaves
Responding: Number of Bird Nests
4. Manipulated: Acid Rain
Responding: Fish Population
5. Manipulated: Calcium Given
Responding: Bone Strength
Think about the manipulated variable as the changing item in the experiment. If this changes, the response will. (This is the Independent Variable)
Think of the Responding Variable as the result of the variable only can change when Manipulated is changed. (This is the Dependent Variable)
Hope This Helps :)
Manipulated variable in each case are watering of plants, number of chocolates, trees having leaves,water in acid rain, amount of calcium respectively and responding variables are growth height, amount of homework,number of bird nests,fish population,bone strength.
What are variables?Variables are defined as any characteristics, number or quantity which can be measured . It can also be called as a data item . It is called as variable because they can vary and can have variety of values.
There are three types of variables 1) manipulated variable where in a condition is specified, 2) responding variable which is dependent on manipulated variable 3)controlled variable which do not change
Example of manipulated variables are number of hours spent by a student studying , that of responding variable is result of a student and temperature is an example of controlled variable.
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OH COME ON HELP ME OUT HERE PLS
What type of battery cell is characterized by having two metals, zinc and copper, sitting in dilute sulfuric acid that touches both metals?
pls help me
wet cell
lead-acid cell
electric cell
voltaic cell
Answers
Answer:
a voltaic cell
Explanation:
Answer:
Explanation:
A voltaic cell did exam dont worry
Scientists claim that climate change is happening because Earth is warming. They also claim that humans have helped cause the warming by adding greenhouse gases to the atmosphere. Other people claim that Earth is not experiencing climate change because some winter days are still very cold. Use evidence to evaluate each claim about climate change.
help
this is science.
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Answer:
There is solid proof that global warming is increasing and getting worse by t he day. The ice caps slowly melt more and more each year due to this which is a proven fact. On top of that, it has been proven that carbon emission by humans is bad for the environment and it helps increase the problem of global warming by weakening our atmosphere. As for the cold days, just because we have global warming doesn't mean the earth weather wont be cold. global warming is something that slowly happens and over time the temperature global has actually been increasing at a not very notice able pace.
Explanation:
Yes, climate is changing because of the human activities which are causing harm to the environment causing global warming.
What is global warming?Global warming is the long-term warming of Earth's climate system that has been seen from the pre-industrial period (between 1850 and 1900) as a result of human activity, principally fossil fuel combustion, which raises heat-trapping greenhouse gas levels in the atmosphere.
Evidence which claim about climate changeGreenland, Antarctica, and tropical mountain glaciers have all provided ice cores that illustrate how the Earth's climate responds to fluctuations in greenhouse gas levels. Tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks all contain ancient data.Yes, 97 percent of actively published climate scientists agree that people are to blame for global warming and climate change.Based on the data, nearly 97 percent of climate scientists agree that human-caused climate change is happening, according to the American Association for the Advancement of Science (AAAS).To know more about Global warming here
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Need help with this.
Answers
Answer: It's C
Explanation: All of the other reaction are physical reaction.
To clean their drain pipes, some people make a solution of baking soda and vinegar. Baking soda, also known as sodium bicarbonate (NaHCO3), reacts with acetic acid (C2H4O2) in vinegar. When these substances combine, the solution becomes colder, and sodium acetate (NaC2H3O2), water (H2O), and carbon dioxide gas (CO2) form. The gas creates bubbles that help clean the inside of the pipes. is this reaction endothermic or exothermic?
Answers
Answer:
i belive its exothermic
Explanation:
yeaaa
A food web showing the flow of energy through a freshwater ecosystem is shown below. Which of the animals shown in the food web is preyed upon by otters?
Answers
Answer: minnows
Explanation: tiny fish
Please help ill mark branliest (im using the last of my points for this so please don't scam me)
can someone write about genetically modified foods and the genetic modification process?
Answers
Answer:
ok :)
Explanation: genetically modified organisms (GMOs) are being made by inserting a gene from an external source such as viruses, bacteria, animals or plants (etc) into foods. Genetically modified foods seem to be not as healthy as unmodified foods, according to research. also many people are against it due to the fact that some people go overboard and add too many genetically modified organisms, which causes health risks and unfortunately harms people. sometimes genetically modified food contains toxins and antibiotics. srry i couldnt find much on the process but this is based off my background knowledge so yeah
QUICK ANSWER THIS
Aerobic Respiration is the release of energy from food ________ the use of oxygen
A.With
B.Without
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Answer:
A. with.
Explanation:
The Newton is the SI unit for ____.
temperature
density
weight
mass
Answers
Answer:
Mass
Explanation:
plz help, science open answer
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Plz help!
Researchers have been studying how emissions from both volcanoes and human activities, such as the burning of fossil fuels, impact the atmosphere. Both types of emissions contribute to the total CO2 levels in the atmosphere. Graph 2 shows that atmospheric CO2 levels have been steadily increasing over time. This increase in CO2 levels has been linked to the increase in global surface temperatures.
Explain why the total mass of carbon must be decreasing in a different step of the slow carbon cycle based on the on the increase in atmospheric CO2.
Answers
Answer:
The total amount of carbon in the world is not changing. Because matter is
conserved in all processes and reactions, carbon must decrease in one place if it increases in another.
Explanation:
hope this helped!
Which of these statements about gravity are true?
Gravity helps us stay situated on Earth without floating away.
Gravity gives objects their mass.
Gravity holds our galaxy together.
Multiplying the mass of an object by the acceleration due to gravity gives the weight of the object.
Gravity helps scientists launch spacecraft out of Earth’s atmosphere.
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Answer:
gravity holds our galaxy together
Explanation:
that is why we don't levitate into the air
Do plant and /or animal cells uses energy to carry out life processes?
Answers
Answer:
Yes/true/correct
Explanation:
I hope this helps! ^^
PLEASE HELP ASAP!!!! WILL GIVE BRANILEST
Fill a 100-milliliter container with 50 grams of sand. Fill a 100-milliliter container with 50 grams of cold tap water. Fill the last 100-milliliter container with 100 grams of cold tap water. Use the scale to measure the masses.
a scale measuring 100 grams of cold water in a 100-milliliter container, with 100-milliliter containers holding 50 grams of sand and 50 grams of cold water alongside
Pour all the ice cubes into a tub, and fill it with cool tap water to a depth of 2 inches. Place the sand and water samples in the ice water. Cover the entire tub.
three 100-milliliter containers in an ice bath inside a covered tub, with one container holding 50 grams of sand, one holding 50 grams of cold water, and one holding 100 grams of cold water
Every 15 minutes, remove the cover and check the temperatures of the samples using the three thermometers. Wait 30 seconds before recording the thermometer reading. Once the temperatures of the three samples are no more than a degree apart, record the temperatures.
three 100-milliliter containers (each with a thermometer) in an ice bath inside an uncovered basin, with one container holding 50 grams of sand, one holding 50 grams of cold water, and one holding 100 grams of cold water
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Answer:Every 15 minutes, remove the cover and check the temperatures of the samples using the three thermometers. Wait 30 seconds before recording the thermometer reading. Once the temperatures of the three samples are no more than a degree apart, record the temperatures.
hope this helps
Answer: Person above me is sped
Explanation:
Carbonic acid is a mixture of
Answers
Answer:
a compound of the elements hydrogen, carbon, and oxygen. (also carbonic acid is a compound not a mixture ^-^)
Explanation:
hope this helps dude
According to the concept of solubility, carbonic acid is a mixture of water and carbon dioxide.
Solubility is defined as the ability of a substance which is basically solute to form a solution with another substance. There is an extent to which a substance is soluble in a particular solvent. This is generally measured as the concentration of a solute present in a saturated solution.
The solubility mainly depends on the composition of solute and solvent ,its pH and presence of other dissolved substance. It is also dependent on temperature and pressure which is maintained.Concept of solubility is not valid for chemical reactions which are irreversible. The dependency of solubility on various factors is due to interactions between the particles, molecule or ions.
A mixture of water and carbon dioxide under high temperature and pressure forms carbonic acid as it is highly soluble,thus carbonic acid is a mixture of water and carbon dioxide.
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Which of the following statements is true?
Like magnetic poles attract each other
There is no relationship between magnetic poles
Like magnetic poles repel each other
Answers
Answer:
Like magnetic poles repel each other
Explanation:
Among the following statements, the one that is true is Like magnetic poles repel each other.
What are magnets?Magnets are substances which possess their own magnetic field this magnetic field basically arises from the circular movement of negatively charge electrons. The elements which have unpaired electrons and have spin angular momentum or orbital angular momentum or they are together present are called as Magnets.
The magnetic field present is invisible but it is definitely responsible for the most notable property of a magnet. Magnetic force is a force that pulls on other ferromagnetic materials, such as iron, steel, nickel, cobalt, etc. and attracts or repels other magnets.
Therefore, Among the following statements, the one that is true is Like magnetic poles repel each other.
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the atomic number of rubidium is 37. if the mass number of rubidium is 85 how many subatomic particles are found inside and outside of the nucleus of the rubidium atom?
Number of particles inside Nucleus Number of particles outside Nucleus
Answers
Answer:
85 inside,37 outside
Explanation:
85 inside =37 protons and 48 neutrons
37 outside=37 electrons
Hope this helps
What is used to measure the energy in a chemical reaction?
Answers
I'm pretty sure it's a calorimeter.
Answer:
calorimeter
Explanation:
calorimeter
A calorimeter is a device used to measure the amount of heat involved in a chemical or physical process. For example, when an exothermic reaction occurs in solution in a calorimeter, the heat produced by the reaction is absorbed by the solution, which increases its temperature.
what is one way water moves through the nonliving parts of an ecosystem during the water system?
Answers
Answer:
Water moves through the help of living organisms in an ecosystem. ... Plants absorbs water through their root system and loss by transpiration. Water also moves through the living organisms in an ecosystem. Other nonliving processes such as evaporation, precipitation, water returns back into the atmosphere.
Explanation:
hope this helps you
evaporation!
Explanation: i know im late but i hope this helps other people aswell! <3
Compare the chemical reaction that causes the Statue of Liberty to look green with the chemical reaction that causes a bike to rust.
Answers
Bike rust - Is do to being exposed to moisture ( like Water, or any type or liquid.)
Hope this helps!!
Both the situations are examples of corrosion. The green colour seen in statue of Liberty is due to the copper oxide formation whereas the resulting in bike parts is due to the formation of iron oxide in the surface.
What is corrosion?Corrosion is a chemical process by which the metals are destroying and change in colour. Metal surface when open to air or water will react with the oxygen forms corresponding oxides.
Corrosion is an electrochemical process where the oxygen acts as the anode and the metal surface cathode where the oxide deposits and the colour changes. Materials containing iron will react with oxygen forms a red iron oxide called rust which then completely corrode the metal.
Similarly, the statues are made of metal alloys containing copper. Copper also reacts with air or water forms the copper oxide which is green in colour that is why the statues are turning to a gree patchy colour over time.
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Which statement best describes the message of the poem? *
It about icruas flight pls help and it is the poem not the myth
A Icarus flew too far for no good reason.
B Icarus learned something by flying too far.
C Icarus had a habit of flying too far.
D Icarus was excited by flying too far.
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Red blood cells need iron. They store iron and typically contain more iron than the fluid around them does. Which action would show the blood cells doing active transport?
pushing iron out
bringing iron in
swelling
shrinking
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The Moon takes about one month to orbit Earth. Based on what you have learned and know, there would be two eclipses (one lunar and one solar) every month. Do you think this is realistic? Explain why or why not.
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Answer:
it would not be
Explanation:
because the moon doesn't always go into earth's shadow
Answer:
It's true that the moon goes around Earth every month, but it doesn't always get in Earth's shadow. The moon's path around Earth is tilted compared to Earth's orbit around the sun. The moon can be behind Earth but still get hit by light from the sun. ... This is why we don't get a lunar eclipse every month.
Explanation:
Need help with this.
Answers
Answer:
D
Explanation:
because it is changing to its own compound of chemicals.