Why do chemical properties change?
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Answer:
because they undergo physical and chemical changes
Answer:
of matter describes its "potential" to undergo some chemical change or reaction by virtue of its composition. What elements, electrons, and bonding are present to give the potential for chemical change.
Related Questions
Explain the symbiotic relationship of a coyote that eats a rabbit.
A coyote eating a rabbit is an example of....
I think this because..
Answers
HELP ASAP!! An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The following observations were made:
1. The crystals dissolve.
2. A precipitate forms.
3. The bottom of the beaker feels warm to the touch.
4. Bubbles begin to form in the water.
Which observations are evidence that a chemical reaction took place?
Answers
Answer:
observations (2), (3), and (4) provide strong evidence that a chemical reaction occurred.
Explanation:
Observations (2), (3), and (4) are evidence of a chemical reaction because a precipitate formed, energy was released (the bottom of the beaker felt warm), and bubbles were formed in the water. Observation (1) indicates a physical change, not a chemical reaction.
Describe how each of the following processes helps an organism maintain homeostasis.
Photosynthesis
Cell Division
Removing waste
Cellular Respiration
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PLEASE HELP I WILL MARK BRAINLIEST!!!
How much power is indicated by each example?
Answers
Answer:
The first is five and the second is ten
Explanation:
Second one : 10
How do the properties of each of these materials vary? Paper and Cardboard, Plastic, Wood, Metals
PLEASE HELP NOW
Answers
The properties of all of these material vary from each other. Paper, cardboard and plastic are insulators and metals and conductors. Each of them has different physical properties.
What are physical properties ?The physical properties of a substance include properties which changes its physical structure, size, shape, phase etc. Solubility, conductivity, resistance etc. are also physical properties.
Here, paper, cupboard and plastic are insulators and they does not conduct electricity. Whereas, metals are very good conductors and they have wide range of applications in optoelectronic devices.
Each of these materials has different melting temperature and different uses. Their density also vary significantly. The paper is the less dense one here and metals are denser.
The applications of these materials are based on their physical properties.
Find more on physical properties:
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PLS HELP I'LL GIVE 50 POINTS+ BRAINLIEST TO THE FIRST PERSON WHO WRITES ME AN ESSAY
Part 3: Writing to the People of Westfield
Dr. Yung wants you to explain what the reddish-brown substance is to the people of Westfield. As you write your argument, remember to:
state your claim about the identity of the reddish-brown substance.
use evidence from both your observations and the atomic-scale models to support your claim.
include the vocabulary words listed below in your argument.
Chapter 1 Question: What is the reddish-brown substance in the water?
Claim 1: The reddish-brown substance is the same as the substance that makes up the pipes.
Claim 2: The reddish-brown substance is the same substance as the fertilizer.
Claim 3: The reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes.
Word bank: atom, model, property, substance
Answers
Answer:
Dear People of Westfield,
As you may be aware, there has been a lot of concern about the reddish-brown substance found in the water supply. After conducting extensive research and analysis, I am here to share my findings with you.
Based on my observations and the atomic-scale models, I can confidently state that the reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes. In fact, the reddish-brown substance has its own unique set of properties that distinguish it from these other substances.
One of the key pieces of evidence supporting this claim is the atomic-scale model of the reddish-brown substance. This model shows that the substance is made up of its own distinct atoms arranged in a specific way. These atoms have unique properties, such as their size and charge, that differentiate them from the atoms that make up the fertilizer and the pipes.
Furthermore, my observations of the reddish-brown substance also support this claim. I have noticed that the substance behaves differently than both the fertilizer and the pipe material. For example, the substance dissolves at a different rate and reacts differently to various chemicals.
In conclusion, it is clear that the reddish-brown substance in the water supply is its own unique substance, with its own distinct properties and atomic makeup. It is not the same as either the fertilizer or the substance that makes up the pipes. I hope that this explanation provides some clarity and reassurance to the people of Westfield.
Explanation:
give me brainliest
I am writing to address the recent concerns about the reddish-brown substance found in your water. After careful observation and analysis, I have come to the conclusion that the reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes.
My claim is based on the evidence from both my observations and the atomic-scale models. The atomic-scale models show that every substance is made up of atoms that have unique properties. These properties determine the characteristics of the substance. After analyzing the reddish-brown substance, I found that its properties are different from both the fertilizer and the substance that makes up the pipes.
Furthermore, the reddish-brown substance has a unique set of properties that are not found in either the fertilizer or the substance that makes up the pipes. These properties include its reddish-brown color, its texture, and its chemical composition. These properties are consistent with a different substance that is not related to either the fertilizer or the substance that makes up the pipes.
In conclusion, I believe that the reddish-brown substance is not the same as either the fertilizer or the substance that makes up the pipes. My claim is based on the evidence from both my observations and the atomic-scale models. The properties of the reddish-brown substance are unique and do not match those of either the fertilizer or the substance that makes up the pipes.
Thank you for your attention to this matter.
Sincerely,
[Your Name]
3. A recent flood in the area has caused many short-term changes to
the ecosystem. Which is a long-term change?
A. Standing water in the streets and sewers
B. Temporary displacement of organisms
C. Permanent change in the landscape
D. Poor water quality in rivers and streams
Answers
Answer:
c
Explanation:
While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.
Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.
However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.
Answer: C
Explanation:
The landscape could be flooded. Houses and buildings may be restricted.
How do large storms and strong currents affect the coasts?
Storms and currents bring in warm weather in the coast.
Storms and currents can bring in sediments from other places.
Storms and currents attract animals to live by the coast.
Storms and currents are necessary to produce seashells.
HELPPP
Answers
ctrl c this than ctrl v it in a serch bar its a fun game :) http://agar.rip/play/ this is to https://evoworld.io/play?loc=EU
How does external stimuli help a plant survive?
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Write a three paragraph essay about being a scientist. Include the following: If you could be any kind of scientist, what kind would you be? Why? Describe what your life would be like as the scientist you imagine.
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Answer:
the answer is a hope this hep;slms
Explanation:
betuase im write
Answer:
If I were to be a scientist, I'd be a botanist. A botanist is a scientist who studies plants. For example, they study many different aspects like their genetic, physical structure, and the distribution. They also study the relationship between plants and their different environments.
I would choose to be a botanist, because they help save our plants which are very important. They also help with telling others what exactly causes pollution and possible ways to stop it. Botanist also help with providing human resources like food. Without botanist, we would have a lot less of resources that we use in everyday life.
I can see my life as a botanist in many different ways. I might be put in the chemical based section or I might be put in the analysis of plants. Overall if I were to see myself as any kind of scientist, It would have to be a botanist.
Explanation:
Hope it helps, feel free edit whatever you'd like too
Fish are invertebrates, and all animals are equal so does this mean that each individual animal is equivalent?
A. no
B.yes
C.kinda.
D.none of the above
Answers
Answer:no
Explanation:
because there are different bone structures to different animals
ex.mammals aren't invertabres
Answer:
A. no
Explanation:
The other person is right.
So I have a wet roll. I put the wet roll into a plastic bag, and in the plastic bag is a wet paper towel. How long will it take to mold?
Answers
Answer:
2 to 4 days
Explanation:
wet roll of paper towels should get moldy in a couple of days depending on the temperature of the room even in a bag so i suggest you just throw it away. But if you do need it then put it in the fridge because mold hates the cold weather, it thrives in warm weather. If you do that then you should have enough time to use it.
Hope this helps!
What do we call the principal SI units that are used to derive all other SI units? derived units derived units base units base units lowest units lowest units fundamental units
Answers
Answer:
the answer is derived physical measurements
In an experiment, the factor that we measure is called the A) independent variable B) conclusion C) controlled variable D) dependent variable
Answers
Answer:
Controlled variable?
Explanation:
I do know it is out of A C and D but even though it is in every science assessment I have i always fail to forget but I may be right but not fully sure last time I saw this the question was 4 weeks ago when I was really tired
Help? Tysm if you do :>
Using the graph above, what was the cost of the most expensive invasive species?
200 billion US dollars
10 billions US dollars
148 billion US dollars
50 billion US dollars
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HELP RTIGHT NOWWWWWWWWWWWWWWWWW
Answers
Explanation:
biosphere
that is the answer
Answer:
biosphere
I hope it help
____ is the study of a reactions progress over a period of time.
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Please help ASAP
Go around your house and hit (or tap) ten different objects. The objects should be different shapes and made of different material (choose things to hit that won’t break!). Each object is a different medium for sound. Try to hit each using the same amount of energy.
Describe each object that you hit and the sound it made.
Rank the ten objects from loudest to softest.
Make some conclusions based on your results from Steps 1 and 2. For example, are there a certain shapes or materials that are better or worse media for sound travel?
Answers
Stairs, wall, door, window, picture, floor, desk, backpack, paper, bed all of these produce different sound.
What is sound?Sound is defined as an acoustic wave is a vibration that travels through a gas, liquid, or solid transmission medium. In terms of human physiology and psychology, sound is the brain's receipt of these waves and perception of them. A mechanical disturbance that causes an equilibrium condition to be disturbed and propagates through an elastic material medium.
The vibration of items creates sound, which travels from one place to another through a medium. Vibration is the phrase used to describe an object's to-and-fro or back-and-forth motion. Vibrations are generated by objects in motion.
Thus, stairs, wall, door, window, picture, floor, desk, backpack, paper, bed all of these produce different sound.
To learn more about sound, refer to the link below:
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What determines a single inherited trait of an indiviual ?
a. one pair of many pairs of genes
b. a disrupted cell cycle
c. one half of the replicated DNA stand
d. amino acids joined to form proteins
Answers
Answer:
The answer is A.
The pair of genes from the parent determines what trait the offspring inherits.
In a reaction of yeast and hydrogen peroxide, the yeast causes a reaction in which the hydrogen peroxide breaks apart to form oxygen gas and water. Heat is released (given off) in this experiment, which would indicate a(n) ____________________ reaction.
A) equilibrium
B) endothermic
C) physical reaction
D) exothermic
Answers
Answer:
D, exothermic reaction
Answer: it indicates exothermic reaction
Explanation:
You are on vacation with your family up in the mountains. Your friend is on vacation near the equator by the ocean. Explain which climate will experience the most precipitation based on what you know.
A. Both climates will have the same amount of precipitation.
B. The ocean climate will have less precipitation because it is close to sea level.
C. The climate around the equator will have more precipitation because it is very hot.
D. The mountain climate will have more precipitation because it increases with elevation.
Answers
Answer:
C
Explanation:
More precipitation occurs near the equator because it is a tropical area. When its hot, there will always be more precipitation.
I NEED HELP ASAP!!!
A sample of ice undergoes a physical change by being melted in a beaker. The ice cube had a mass of 30 grams. What will be the mass of the liquid water? How did you determine this?
Answers
Answer:
it would still be 30 grams.
Explanation:
it would still be 30 grams because you are not adding any more water to the beaker and you are not taking any of the melted water away
miss girl help- You may not have ever heard of the Inupiat, Inuvialuit, or the Gwich'in peoples, but where can you infer that they live?
Answers
Answer:
The Gwichʼin or Kutchin are an Athabaskan-speaking First Nations people of Canada and an Alaska Native people. They live in the northwestern part of North
Explanation:
Which is not one of the benefits of biodiversity?
Economic value
Uniform genetics in a species
Survival of species in the ecosystem
Cultural value
Answers
In total honesty I'll say economic value
Answer: Uniform genetics in species
Explanation:5 of the benefits of biodiversity is economic value,ecological life support, cultural value , recreational value, scientific value
A and D are out and c is the same thing as ecological life support.
which of the following is the most accurate description of all known spaces
Answers
Answer:
where are the following??
like anything? any animal?
Explanation:
Answer:
vevaeeav
Explanation:cx fsbtenet
1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL
Answers
To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.
Why is deforestation an issue for the climate?
Answers
Answer:
They are bad because they cause global warming.
Explanation:
When trees are cut, burned down, or are allowed to rot they release carbon dioxide. As you probably know carbon dioxide is very bad and can cause global warming.
Basically , the carbon dioxide leading up to our fresh air is toxic gas and we don’t need to be breathing all that in. It’s not good for our long or long-term in general.
Hope this helps!
help
Nicole has 2 glasses on the counter: one of water and one of sugar-water. She is baking a cake and needs to use the sugar-water for the glaze. Both glasses look identical, but one contains a mixture and the other contains a compound.
Is sugar-water a mixture or a compound? Define mixtures and compounds, and explain how, without tasting it, Nicole can test to make sure she is using the sugar-water in the glaze.
Answers
Answer:
sugar-water is a mixture not a compound.(homogeneous mixture.)
Explanation:
Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.
The solution of sugar in water is considered a mixture not a compound because the particles of sugar and water are not completely dissolve nor mixed in a fixed proportion or ratio. hope this helped :)
Answer: Nicole can take a small amount of sample from both of the glasses, she can place the samples in two separate containers and leave them out in the sun, so that the water gets evaporated. One of the two containers will contain a residue of sugar. The one containing the sugar residue, is the sugar-water solution.
I need help asap pleasee
Answers
What landscape feature contributes to the dryness of deserts?
A. The open, flat areas of a desert prevent clouds from forming.
B. Desert canyons collect all water and funnel it out of the desert.
C. Desert lakes absorb all the water.
D. Mountains block the winds that bring rain clouds.
Answers
Answer:
As I'm Not % Sure I Can Say C & D don't seem Right, Leaving A & B Having Me to Think the Answer is A (Hope I'm Right Good-Luck)
Explanation:
Answer: Mountains block the winds that bring rain clouds.
Explanation: By acting as obstacles to the flow of air masses, mountains contribute significantly to the dryness of deserts. Orographic lifting is a process that occurs when moist air is forced to ascend as it approaches a mountain range. The moisture in the air condenses and forms clouds as the air cools as it climbs. As a result, on the windward side of the mountains, the air loses a lot of its moisture as precipitation. The air has already lost a significant amount of moisture by the time it reaches the leeward side of the mountains, creating a rain shadow effect. On the leeward side of the mountains, this impact results in a dryer area that is often a desert. Consequently, the existence of mountains influences