What is a chemical change?
Why do physical properties change?
Why do chemical properties change?

Answers

Answer 1
1.Chemical changes occur when a substance combines with another to form a new substance
2. A physical change takes place without any changes in molecular composition
3. When a substance goes under a chemical reaction, the properties will change
Answer 2
Chemical change: Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

A physical change takes place without any changes in molecular composition. The same element or compound is present before and after the change. The same molecule is present through out the changes. Physical changes are related to physical properties since some measurements require that changes be made.

When a substance goes under a chemical reaction, the properties will change drastically, resulting in chemical change. ... Chemical properties can be contrasted with physical properties, which can be discerned without changing the substance's structure.

Related Questions

What would happen if all the cordgrass was removed from the coast of South Carolina? pls help quickly

Answers

Answer:

the common name cordgrass. Adaptation and Distribution Gulf cordgrass grows along the Gulf Coast from Florida to Texas, and South into Eastern Mexico. More rarely, gulf cordgrass grows inland in marshes, swamps, and moist prairies. It can also be found along the Caribbean coasts, and inland in Argentina and Paraguay.

Explanation:

Hope that helped! (can u mark brainliest?)

Answer: Im not sure but ill guess and if its wrong ill tell you the answer once im finished with this

Explanation:

okay i got the test results and the answer is A; There would be rapid erosion from the entire coast, causing cities and homes to fall into the water.

helpppppp!!!!!!!!!!!!!!!!!!1

Answers

**visible confusion**

Explain how Mendel used the F1 generation to conclude that genes are inherited.




Answer the Questionnn


science

Answers

Answer:

studied the generation to see there traits

Explanation:

studied the generation to see their traits i’m sure

2. 1. Your best friend has missed a lot of school recently. Your teacher has allowed you to create a study guide and will let your friend use it on the test.

The guide should include:
• descriptions of amplitude, wavelength, frequency, and wave speed.
• Give examples of the wave relationship between amplitude and wavelength (if there is no relationship, explain how you know)
• Give examples of the wave relationship between wavelength and frequency (if there is no relationship, explain how you know)Text to speech

Answers

Answer:

Hi (best friend)! Here is what you missed!

Five wave parameters are defined and measured: the time, the frequency, the amplitude, the wavelength, and the speed. The wave length is the time it takes to pass a full phase. The frequency is just the opposite; it's the number of wave cycles that have been completed in a second.

Lets give a wave of water as an example. Its wavelength is the distance from crest to crest or from trough to trough. The wavelength can also be thought of as the distance a wave has traveled after one complete cycle—or one period. The time for one complete up-and-down motion is the simple water wave’s period T. In the figure, the wave itself moves to the right with a wave velocity vw. Its amplitude X is the distance between the resting position and the maximum displacement—either the crest or the trough—of the wave.

help me ples HELP HELP HELP HELP HELP
the vocab is autotroph, heterotroph, fermentation, mitosis, cytokinesis, photosynthesis, Cellular respiration, cell cycle, and interphase,

Answers

Answer:

Explanation:autotroph and photosynthesis

sorry if I am wrong I am dumb. :( :(

I found it on google.

God bless, stay safe, and good luck! :) :)

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

Y’all have complicated teachers

here we go again.......

Answers

Answer:

i think it might be C

sorry if it is wrong

I think C but I’m not positive.

Please help me if you can.

Answers

Answer:

Explanation:

b

the answer is a cause SA and SH equal 89. to get the other side to equal 89 u gotta add 71 to 18 to get 89.

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

sorry i'm not a scientist but i think it's C

Explanation:

sorry again if i get it wrong for u :(

Label the diagram.Please actually say the answer!

Answers

Answer:

Don't take my word for it, but I think its Radiant to electrical, in all means I can be wrong so again, don't take my word for it

Radiant to electrical energy is the correct answer brainliest please
I’m tryna rank up

Molecules can be made of
A. the same element only.
B. different elements only.
C. the same or different elements.

Answers

Answer:

I'm sure the answer is C. the same or different elements.

Explanation:

If I'm wrong tell me, but I am 100% sure that's the answer :)

How is energy involved in physical change?

Answers

the amount of energy that is used changes the amount of physical change that is shown

During phase changes, energy changes are usually involved. For example, when solid dry ice vaporizes (physical change), carbon dioxide molecules absorb energy. When liquid water becomes ice, energy is released. Remember that all chemical reactions involve a change in the bonds of the reactants.

Why do chemical properties change?

Answers

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.

What is another word for property?

Answers

Other words for property can be possessions or belongings.
Possession under your will

What is one difference between a meteoroid and an asteroid?
Asteroids revolve around the Sun just like planets and meteoroids do not.
Asteroids are smaller than meteoroids.
Meteoroids revolve around the Sun just like planets and asteroids do not.
Meteoroids are smaller than asteroids.

Answers

Answer:

Meteoroids are smaller than asteroids.

Explanation:

An asteroid is a small rocky object that orbits the Sun. A meteor is what happens when a small piece of an asteroid or comet, called a meteoroid, burns up upon entering Earth's atmosphere

Answer:

Meteoroids are smaller than asteroids.

Explanation:

-gradpoint

Please answer the following essay question with 5-7 sentences.
How is a chemical change different from a physical change?

Answers

Chemical change is different from physical change because physical change is the appearance or form changes. but the matter in the substance does not change. but in chemical change the kind of matter changes and at least one new substance with new properties is formed. *you can add more punctuations to make it 5-7 if you would like:)*
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut.

help!!!!!! pls ima fail this whole quater

Answers

Answer:

LOL i failed my last quarter

Explanation:

but the answer is C humidity

Answer:

I think humidity

Explanation:

Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally. How do Rosa’s body systems work together to get the molecules she needs into her cells? (Sentence starter: Rosa's body systems work together by...

Answers

Answer: ... being that the food she eats food that contains a lot of protein and also starch, so systems are both good for you and work together. Chemical energy is stored in the bonds of sugars. When a sugar molecule is broken down, a usable form of energy is released for the cell's life functions. Cells can release energy in two basic processes: cellular respiration and fermentation. ... In cells use oxygen to release energy stored in sugars such as glucose.

Explanation:

Answer:

What does she need from the food she ate and the air she breathes so that she can go on her run?

A. Rosa needs carbohydrates rich food (bread) to carry out her jogging activity. Protein-rich food before exercise is not recommended unless she is on a weight loss program (diet plan).

B. Rosa needs oxygen to perform aerobic respiration, which is required for maximum release of energy (36 molecules per reaction run). Anaerobic reactions yield less energy (2 molecules of ATP per reaction run) and are not recommended.

How do Rosa's body systems work together to get the molecules she needs into her cells?

Rosa's body cells need carbohydrates (glucose) and oxygen to perform aerobic respiration for the release of maximum energy. The glucose and oxygen molecules are provided to the cells via diffusion into the bloodstream. During exercise/jogging, complex molecules of carbohydrates such as starch (present in bread) are broken down into simple molecules (glucose) which are diffused into the blood. Likewise, a high amount of oxygen is provided to the body's cells via diffusion in blood, which is carried out by the faster movement of lungs and heart. The combined action results in the supply of both types of molecules to enter the cell where mitochondria use these substrates to produce energy molecules (ATPs).

Explanation:

Which describes an asteroid? (select all that apply)
They revolve around the Sun.
Many are found in the asteroid belt.
They come in many shapes and sizes.
They are made up of gases.

Answers

Answer:

I think the second and third? sorry if I'm wrong

Explanation:

Answer.) 3

It said describe and the third one describes it lemme know if I got it right or wrong. Have a nice day!

A ____________ is a large body that moves around a star?


PLEASE FILL IN THE BLANK!!!!!
I NEED HELP!!!!!

sorry there's no science section

Answers

Answer:

A Planet

Explanation:

The earth for example, is a large body that orbits the sun, our local star

Answer:

Planet

Explanation:

Just like Earth orbits the sun (a star).

Define reactant.
Define product.
Define precipitate.

Answers

Answer:

Answers below!

Explanation:

Reactant- a substance that takes part in and undergoes change during a reaction.

Product- a substance produced during a natural, chemical, or manufacturing process.

Precipitate- 1. to separate from a solution as a precipitate. 2. to fall to the earth's surface as a condensed form of water; to rain, snow, hail, drizzle, etc.

Precipitate has different meanings so I didn't really know about which one, but tell me if I'm wrong :)

Answer:

Reactant: a substance that takes part in and undergoes change during a reaction.

Product: are the species formed from chemical reactions. During a chemical reaction reactants are transformed into products after passing through a high energy transition state.

Precipitate: a solid formed by a change in a solution, often due to a chemical reaction or change in temperature that decreases solubility of a solid

Explanation:

These are Chemistry definitions for the terms

Energy and Temperature Activity Worksheet
Instructions: Follow the directions below to complete part one and part two of this activity. You will submit both parts once completed.



Note: You are not performing the experiment—only designing it.

Introduction
The purpose of this assignment is to design an experiment that another student could follow and use to test whether land or water heats faster.

You will complete the following:

Part One: Experimental Design. Plan out an experiment by answering the guiding questions below.
Part Two: Design a Lab Report. Write the outline of a lab report so that another student could complete the experiment by using the materials listed below:
sand
water
heat lamps
thermometers
cups

Part One: Experimental Design
In this section, you will think about what type of experiment to set up. Remember, you are NOT completing the experiment, only designing it. If you want to review the scientific method first, use this tutorial. Use these guiding questions to help you design the experiment. Answer each question below:

What hypothesis will the experiment test?
What are the variables?
What purpose would the sand serve?
What purpose would the water serve?
What purpose would the heat lamps serve?
What purpose would the thermometers use?
How can you use these materials to test whether land or water heats faster?
How would you compare whether land or water heats faster?
Within a 24-hour period, at what three points should the temperature be taken? Why?
What would an effective conclusion need to include?

Part Two: Design a Lab Report
Once you have designed the experiment, you must write out the instructions so another student could act as the experimenter and follow them. Fill in the following elements of this lab report as described in italics below.

Lab Report
Objective
Explain the purpose of your lab.


Procedure
List the experiment procedures. Some steps have been filled in for you. You may need to adjust the numbers to match the steps you decide on.

Identify the variables.
Write out your hypothesis in an if/then format.
Gather your materials.
Analyze the data.
Write your conclusion.

Data Analysis
Label a data table so that the experimenter can record observations for the sand and water temperatures at various points.


Conclusion
Explain what the experimenter should include in this section to show how the data proved the hypothesis.

Answers

Answer:

the ground would heat up slower than the sand because it has lots of moisture  so sand would heat up faster than any thing other than lava

Explanation:

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

c option is correct ...

Answer:

I believe it's either A or C

Explanation:

help plez this was due yesterday

Answers

Prokaryotic cells are unicellular
Eukaryotic cells are multicellular
Plant and animal cells are prokaryotic and eukaryotic because ↓
Prokaryotic cells- plants cells
Eukaryotic cells- animals cells
I am pretty sure that prokaryotic and eukaryotic cells are considered to be living due to the cell theory because the cell theory states that all living things are made of cells.

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

I think It's either A. or C.

Explanation:

Answer:

C

Explanation:

pls help its timed: Which of the following elements has properties similar to Br? Refer to the section of the periodic table shown below:

Periodic table showing three rows. Row 1: boron (B), carbon (C), nitrogen (N), oxygen (P), fluorine (F), neon (Ne). Row 2: aluminum (Al), silicon (Si), phosphorus (P), sulfur (S), chlorine (cl), argon (Ar). Row 3: gallium (Ga), germanium (Ge), arsenic (As), selenium (Se), bromine (Br), krypton (Kr).

a
Argon (Ar)
b
Aluminum (Al)
c
Chlorine (Cl)
d
Carbon (C)

Answers

Answer:

I think its c

Explanation:

The answer would be c

is a plant homogenerous,hetergeneous,or a substance

Answers

Answer:

hetergeneous I hope this helps!

A plant is Heterogeneous

Is a change in matter that produces one or more substances?

Answers

It produces one substance

Answer:yes

Explanation:

Yea

Explain the correlation between chemical properties and chemical changes. (plz i not sure on the answer so it would mean a lot if you could help me.)

Answers

Answer:

Explanation:

A chemical property describes the ability of a substance to undergo a specific chemical change.

A chemical reaction is a process that occurs when one or more substances are changed into one or more new substances.

Differences

Chemical properties are properties that can be observed or measured when a substance undergoes a chemical change.

Physical properties are properties that can be observed without bringing a chemical change.

Another one

chemical properties; can be used to predict how substances react.

chemical changes; It is mostly used in identifying or describing the substance.

A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.[1] Simply speaking, chemical properties cannot be determined just by viewing or touching the substance; the substance's internal structure must be affected greatly for its chemical properties to be investigated. When a substance goes under a chemical reaction, the properties will change drastically, resulting in chemical change.


Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

hope this helps!

PLS HELP PLSSSS
33P
PLSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELPPPP!!!

Answers

75% straight roots and 50% bent roots. sorry bb i’m not good at explaining why, but i promise it’s correct! <3

Answer:

75% straight

50% bent

Explanation:

because the Punnett Squares work that way

think of it as a multiplication table...when 2 numbers come to the middle, they give you the answer just like these squares (they're just smaller)

R + R = RR

R + r = Rr

R + r = Rr

r + r = rr

RR is 25%

Rr is 50% because there are 4 boxes and 2 of them is Rr

rr is 25%

Simpler answer:

I know because 25% + 50% = 75% for the straight root. 25% + 25% = 50% for the bent toot.

Other Questions
For a food to be considered "Fat-free" it must have 0 grams of fat per serving. OA. True OB. False Who were the influences of Latin Pop? helpppppp please I will give brainliest to anyone who can solve this and explain please only explain if you know please Write something your grateful for and be descriptive!! HAPPY THANKSGIVINGG What happens to the strength of an electromagnet when the number of coilsin the solenoid is increased?O A. It depends on what metal makes up the solenoid.B. It increases.C. It remains the same.D. It decreases. One number is 2 less than a second number.twice the second number is 37 more than 5 times the first. Find more the two number hi, i really need the anwsers to the 1st exersize. this is 6grade work. Dont look at the right ones, because idk. How does exfoliation form talus Write a function that takes in two parallel lists: a list of times (in increasing order), and a list of distance traveled by that point in time. The function should return a new list giving the average velocity between consecutive time measurements. The new list should have length one less than the original lists. what is a substance? a uniform mixture that cant be separated a mixture that can be separated a single component that cant be separated a single component that can be separated 2. What were some of the incidence that caused the colonists to "dissolve the politicalbands" with England? HELP PLEASE What is the correct percentage of time a cell spends in the Interphase and the Mitosis stages? Ruby operates a hobby supply store. She maintains her books using the cash method. At the end of the year, her accountant computes her accrual basis income that is used on her tax return.For 2020, Ruby had cash receipts of $840,000, which included $100,000 collected on accounts receivable from 2019 sales. It also included the proceeds of a $50,000 bank loan. At the end of 2020, she had $175,000 in accounts receivable from customers, all from 2020 sales. Ruby paid cash for all of the purchases. The total amount she paid for merchandise in 2020 was $560,000. At the end of 2019, she had merchandise on hand with a cost of $45,000. At the end of 2020, the cost of merchandise on hand was $80,000.1. Ruby's accrual basis gross receipts for 2020 are_______ $ .2. The cost of goods sold for 2020 under the accrual method is________ $ .3. The gross profit from merchandise sales for 2020 under the accrual basis is________ $ . The region labeled with the number 4 on the map above is a __________ climate region. A. humid subtropical B. tropical wet and dry C. tropical wet D. semiarid I have to select which pair of triangles can demonstrate congruence. Any help? 18. All of the following represent examples of the incidence of tax, EXCEPT for * Suggest ways you could determine if two similar species are mimics in nature Please need help Choose the words that complete the following sentence.Direct quotes needaround them, or else it is considered(1 point)O quotation marks/summarizingO quotation marks/plagiarismO parentheses/summarizingO parentheses/plagiarism The graph shows the number of each kind of book in Hero's personal library. A book ischosen randomly.What is the probability that the book is a romance book? Bathroom scales read the normal force that is exerted against the floor. What would a scale read when a 100 kg man is in an elevator accelerating upward at 1.2 m/s2? What would it read when the man is accelerated downward at 1.8 m/s2?