Why do chemical properties change?
What do the prefixes exo- and endo- mean?
What happens to heat in an exothermic reaction?
What happens to heat in an endothermic reaction?

Answers

Answer 1
Chemical properties change because they go under a chemical reaction. The prefix exo- means outer and endo- is a convincing form meaning within. In an exothermic reaction the heat is released into the surroundings. In an endothermic reaction the temperature rises and the endothermic process absorbs heat and cools the surrounding

Related Questions

A 2 kg toy car and a 5 kg toy car are pushed with an equal amount of force. Which toy car will have the least acceleration?

Answers

Answer:

The 5 kg toy car will have least acceleration

Explanation:

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).

The two factors that cause seasons are __________ and ___________.


PLZ HURRY

Answers

Answer:

axial tilt and variable distance from the sun

Explanation:

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 :(

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.

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

can someone help this is due in 20 mins :/

Answers

Answer:i love you oofgang250

Explanation:

Could you tell me the answer choices and I’ll see if I know because I’m pretty sure I learned this. Have a nice day!!

Why do chemical properties change?

Answers

Answer:

Chemical properties can change due to a variety of things. If you were to talk about Weathering, the chemical properties change when there is acid rain, water, CO2, and O2. Chemical Properties change when the chemical properties of an object change too.

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 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.

so like i need help pls!!!!!!!!!

Answers

Answer: pretty sure it is number 2

Explanation: sorry if i am wrong.

I think it’s nutrient poor soil

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

What happens to elements and compounds that are dissolved in a solution when the water evaporates?

They become liquid.
They crystallize.
They disappear.
They gain special properties.

Answers

The answer is they crystallize

Answer:

They crystallize.

Explanation: just took the test

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

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.

What is another word for property?

Answers

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

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:

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

Which describes a meteoroid? (select all that apply)
They are larger than the Sun.
Many are found in the asteroid belt.
Many are found between the Sun and Mercury.
They revolve around the Sun.

Answers

Many are found between the sun and mercury
Many are found in the asteroid belt

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

Answers

**visible confusion**

If two oceanic plates move towards each other at a convergent boundary, then_____ may occur.

earthquakes
faults
ocean formation
mountains
volcanoes
island chains
seafloor spreading

pick two events

Answers

earthquake and mountains

Answer:

I think the answer is Volcanoes.

Explanation:

If the two plates that meet at a convergent plate boundary both are of oceanic crust, the older, denser plate will subduct beneath the less dense plate. The older plate subducts into a trench, resulting in earthquakes. Melting of mantle material creates volcanoes at the subduction zone.

When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone. Old, dense crust tends to be subducted back into the earth. An example of a subduction zone formed from a convergent boundary is the Chile-Peru trench.

Hope this helps and if you could mark this as brainliest. Thanks!

What is a small ball that orbits around a planet.

There's no science section sorry

Answers

Answer:

Moon I am guessing. Another option is comet, but they normally don't orbit a planet.

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!

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!

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! :) :)

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.

Other Questions
Plz I need help!!!!!!!!!!!!!!!!!! You are saving money for a down payment on a new house. You intend to place $7,500 at the end of each year for three years into an account earning 5% per year. At the end of the fourth year, you will place $10,000 into this account. How much money will be in the account at the end of the fourth year? A cell has 10% glucose outside and 2% salt inside. Describe the direction of osmosis.1.Water will move out of the cell.2.There will be an equal amount of water movement into and out of the cell.3.Water will move into the cell Item 18Write the word sentence as an equation. Then solve.10 more than a number c is 3.Equation: Solution: c= Laura is a volunteer at a daycare center. She notices a baby girl who is usually active, but is now lying still in her crib.How should Laura check for signs of life on the baby?She should spank the baby.She should shake the baby.She should squeeze the babys hand firmly.She should stroke or tap the baby gently. Help me this is so hard Ill give u brainlist I got bullied guys *drop mic 100000000000x times till faints* What is the common name of plant #3 and what biome would it most likely grow in? Name one adaptation that helps it survive in its biome. Write the line of code to calculate the area of a circle with radius 3 and store it in a variable calledarea. What three seas surrounded the Roman Peninsula? Compare the emergence of advanced civilizations in Meso and South America with the four early river valley civilizations.The calendars produced by both the Mayan and ancient Mesopotamian civilizations NEED ASAP WILL GIVE BRAINLIESTa. were both accurateb. are still used todayc. were based on the moon's cyclesd. never worked correctly was George washington a Federalist or a Democratic Republican and how long was he president Senator Jenna Jacobsen was elected as one of her states two senators in 2006. Assuming that Ms. Jacobsen wins her first re-election, when will she be up for her second re-election?A.2012B.2014C.2016D.2018 .Which is larger? of 280or of 400 Find the range of the function f(x) = 3x - 2, given the domain {-4, 0, 4} Why might trading and fishing have been easier than farming for people in Greece? Choose the value of x for f(x)= x^2-3x when f(x) = 10. I NEED HELP THIS IS MISSING I GIVE BRAINLIEST only if you are right tho number 10 pleaseeee:) tysm this is due tmmrw solve for x 5x+2=17x-16