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

Please help asap!! Tysm!♡♡

Please help asap!! Tysm!

Answers

Hey! I’m not sure this is right the egg has cooked the car has rusted the candle has been lighted the raw bacon has been cooked the fresh bananas are overripe and old

Answer: EGG

Explanation: RAW

pls help first to answer i will mark brainliest.

pls help first to answer i will mark brainliest.

Answers

Answer:

The answer is B

Explanation:

B is the correct answer

Which object has the most kinetic energy?

A. a train that is stopped
B. a car moving at a slow speed
C. ​​a train moving at a slow speed
D. a car that is stopped at the top of a hill

Answers

C

Explanation: kinetic energy means that the object is moving, automatically eliminating A and D since they are both stopped. The formula for kinetic energy is KE=1/2m(v^2) (m= mass and v= velocity). Since the train has more mass than the car, the train has more kinetic energy.
C is the right answer because train has more mass than car

PLEASE HELP?? :|
AS SOON AS POSSIBLE!!

PLEASE HELP?? :|AS SOON AS POSSIBLE!!

Answers

B hope this helps, it sounds right
Oceans cover most of the planets surface and contain nearly all its water.

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Answers

Answer:

39

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

Water can take on three forms which include ice, water, and water vapor. Which states of matter match these three forms of water?
Need answer asap!!!

Answers

Ice is a solid. Water is a liquid. Water vapor is a gas.

Can somebody help me with my science HW

Can somebody help me with my science HW

Answers

1.C 2. A 3. A 4. B 5. B 6. C
1. D
2. C
3. C
4. B
5. C

The speed at which a nitrogen molecule’s particles are moving increases. What will happen to the thermal energy of this molecule?

A) The thermal energy of the molecule will increase.
B) The thermal energy of the molecule will not change, but its mass will change.
C) The thermal energy of the molecule will not change, and its mass will remain the same.
D) The thermal energy of the molecule will decrease.

Answers

Answer

The thermal energy of the molecule will increase.

Explanation:

Increasing the speed at which the particles are moving cause atoms and molecules to move faster and collide with each other. This increases the thermal energy.

If you freeze 5 mL of water into ice and then let it melt, how much water will you have?
None
5 mL
10 mL
Unlimited

Answers

Answer:

5 MLS

Explanation:

This is true because energy can't be created nor destroyed. So If you have

5 mills of water. you will always have 5 mills of water. The reason for this is because the water just changes state from a liquid to a solid. If you turn it back into a Liquid. You will have the same amount.

Answer: 5 mL

Explanation: It’s the same amount of water, none was taken or added

BRAINLIEST IF CORRECT

Plant seeds can be dispersed by

wind.

water.

animal fur.

all of the above.

Answers

Answer:

D) All Of The Above

Explanation:

There are five main modes of seed dispersal: gravity, wind, ballistic, water, and by animals.

Some plants are serotinous and only disperse their seeds in response to an environmental stimulus.

MARK THIS ANSWER AS THE BRAINLIEST PLEASE ❤️

Answer : not sure but I think that’s it’s D .

In an electrical wire, if instead of copper, plastic wire is used. Would it conduct electricity?Justify your answer.

Answers

Answer:

No, a plastic wire would not conduct electricity. This is because plastic is an insulator that does not allow electric current to flow through it. In a wire, electrical conductivity is provided by the movement of charged particles - typically, electrons. Copper is an excellent conductor of electricity because it has a high number of free electrons that are not bound to atoms and can move through the wire very easily. However, in a plastic wire, the tightly bound electrons of its atoms do not allow for the free flow of charges, thus preventing the passage of electric current.

No it would not conduct electricity as it is a insulator

Draw and use algebra tiles to solve the equation. 2x + 3 = 5 x =

Answers

Answer:

1 is the correct answer:)

Subtract 

3

33

 from both sides of the equation

2+3=5

Simplify

Subtract 

5

5x5x

 from both sides of the equation

Simplify

Divide both sides of the equation by the same term

Simplify

than you will have 1.

2x+3=5x= The answer is 1

Which statement about exothermic reactions is true?

Responses

The reactants create energy to form products.

Energy from an outside source is continuously being added.

More heat is given off than is put into the reaction.

The reaction container always feels cold.

Answers

Answer:An exothermic reaction may be defined as a type of reaction in which energy is significantly liberated in the form of heat or light. In such types of reactions, energy is generally transferred into the surroundings rather than utilized from the surroundings.

The option "energy from an outside source is continuously being added" represents an endothermic reaction in which heat or light energy is externally been provided. The option "more heat is given off than is put into the reaction" is not absolutely true because exothermic reactions liberate energy but it does not matter if it is higher or lower than that of being put into the reaction.

Therefore, the reactants have more heat energy than the products is a statement that is true about exothermic reactions. Thus, the correct option for this question is C.

Explanation:

you welcome

Energy from outside sources is continuously being added, since its an exothermic reaction it always focusses on releasing large amount of energy upon activation and combustion.

It cuts off on giving energy back to its surrounding unlike endothermic reaction where the generated energy is given back to the environment to restore its energy levels.

Therefore, it makes it clear that exothermic reaction is a type of reaction that uses combustion to gather the energy lying around in the surrounding to generate large amount of energy and heat and keeps on producing heat until and unless there is energy in surrounding.



To learn more about exothermic reaction,

https://brainly.com/question/10373907

https://brainly.com/question/9799465

What are two minerals that could not be identified by using just one property?

Answers

Color that’s the answer
Color. One of the most obvious properties of a mineral is color. Color should be considered when identifying a mineral, but should never be used as the major identifying characteristic.

If Vanadium has an atomic number of 23 and an atomic mass of 50.9425u, how many neutrons are in one atom of Vanadium?

23
28
51

Answers

28 neutrons are in vanadium.

XxMrprathamxX13
28 neutrons in Vanadium- round 50.9 to 51 then do 51-23=28

If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?

Answers

The mass is 2.375 grams
The mass is 3.375 grams

What is the charge on the Cr in Cr2O72-

Answers

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion.

The elephant toothpaste reaction and the reaction of sugar and sulfuric acid are examples of exothermic reactions. How do you know if an exothermic reaction has occurred?


HALP

Answers

heat, if some sort of heat is produced this would explain the reaction. i think lol

Answer:

Here at science made simple we are keen to inspire not only the next generation of scientists but also the next generation of science communicators. Supporting work experience students each year is an important part of what we do.  Our work experience students get a chance to see a range of the activities that science made simple is involved with and we always set them challenge to produce some science communication themselves, whether designing a demo, delivering a short presentation or, in this case, writing a blogpost that includes all of these!

We hope you enjoy this from one of our latest work experience students, Bilaal, we loved having him in the office and think he’s got a promising career ahead of him.

————————————————————————————————————————–

This blogpost looks at two types of reactions: exothermic and endothermic. We’ll also be looking at reversible reactions– reactions in which the products can react to remake the original reactants. Plus, a great demonstration of an exothermic reaction.

Explanation:

What are all the breeds of dogs and how many breeds of dogs are there?

Answers

Answer:

In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.

Explanation:


There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed

There are currently more than 340 different breeds of dogs recognised throughout the world.

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.

the correct answer is A 4.8 mL

Which feature forms when magma cools beneath Earth's surface?


Geysers


Calderas


Batholiths


Vents








Note- Meant to put it for Geography my bad

Answers

I’m pretty sure it’s Calderas
i believe that the answer is Calderas

Where do flowers come from? They are made through the process of sexual reproduction. Flowers may look simple, but there are actually several parts that allow it to reproduce. Let's take a closer look. Glad my mom didnt make me read this out loud- THIS WAS IN MY FREAKING SCHOOL WORK IM NOT LYING LIKE LOL

Where do flowers come from? They are made through the process of sexual reproduction. Flowers may look

Answers

Answer:

They're sexual reproduction

Explanation:

A flower throws seed at another flower

OMG AHHAHA I LAUGHED SO HARD LMFAIAISJJ

What are the different layers of the Earth, and how do they interact?

Answers

Crust, mantle, outer core, inner core.
Crust, metal, outer core, inner core

Which rock is an example of a clastic sedimentary rock?

shale
iron ore
rock salt
limestone

Answers

Answer:

the correct answer has to be shale

Explanation:

hope it helps

I think the answer is shale

Use the picture below to answer the question.
Comparing the two waves, wave B has a...

A) higher frequency.
B) greater amplitude.
C) shorter wavelength.
D) longer wavelength.

Use the picture below to answer the question. Comparing the two waves, wave B has a...A) higher frequency.B)

Answers

Answer: D) longer wavelength.

Explanation:

A) higher frequency and C) a shorter wavelength.

As far as I know, you calculate frequency on a graph using the number of peaks you can see. Since the wavelength is shorter (the distance between two peaks on the wave), the frequency should also be higher as more fit on the graph.

Which statement is NOT true regarding natural vs. synthetic materials?
A) An example of a natural material is sand.
B) An example of a synthetic material is nylon.
C) Synthetic materials are made from natural resources.
D) Synthetic materials only have a negative impact on society.

Answers

Answer:

Option C

Explanation:

Answer:

Option C

Explanation:

The image shows the gravitational effects of the moon (not shown) on the Earth (depicted here) and the resulting tides that form. Which statements are true about the gravitational force between the Earth and the moon? Select ALL that apply.
Responses
A The moon exerts equal gravitational force on all locations of the Earth
B The moon exerts a smaller gravitational force on Earth locations that are farther away
C The moon must be to the right of the Earth because gravity is an attractive force.
D The moon must be to the left of the Earth because gravity is a repulsive force.
E The moon exerts a greater gravitational force on the Earth than the sun does.

Answers

Answer: B

Explanation:

Brainliest please! (if im right)

The answer is B The moon exerts a smaller gravitational force on Earth locations that are farther away

What is causing the increasing amount of CO2 in the atmosphere? What could be done about it?

Answers

Pollution and people could choose more green ways to do everyday things
Pollution! If everyone recycles it would make a huge difference.

Jim thinks that he can throw a baseball six meters per second. What does the six meters refer to? (2 points)

a
The speed the baseball travels in six seconds.

b
The distance the baseball travels in one second.

c
The distance the baseball travels in six seconds.

d
The time it takes the baseball to travel one meter.

Answers

The answer is b. hope this helps
the answer is b (the distance the baseball travels in one second)

Answer all you can please!!

Answer all you can please!!

Answers

Answer:

number 6 is A

Explanation:

because nothing eals has seeds

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About 3 million years ago, the Atrato Seaway was split by the formation of the Isthmus of Panama to form the Pacific and Atlantic Oceans. Studies on the phylogenies of shrimp from both oceans reveal that the closest relatives of some shrimp in the Atlantic are not other Atlantic shrimp, but Pacific species. What type of speciation does this describe? A. ecological speciation B. allopatric speciation C. sympatric speciation D. parapatric speciation The Parthenon was ________. A a large statue of Apollo in Sparta B a famous temple dedicated to Athena C a school founded by Plato in Athens D the hill on which each city-state was built we know that a conservative vector field f~ hp, q, ri has the property that curlf~ ~0. (a) give two different examples of vector fields f~ and g~ that are conservative and compute the curl of each. The temperate in Anchorage, Alaska at 9am was at -2F. At 9pm the temperature decreased 7F. Write an expression that represents the difference between the temperature from 9am to the resulting temperature at 9pm. How do I write the expression? A ball is thrown straight up into the air.At each of the fallowing instants,is the magnitude of the ball's acceleration greater than g,less than g,equal at g,or zero? a.Just after leaving your hand?b.At the very top (maximum height).c.Just befor hitting the ground. What is the probability of living another year for a woman who is 73 years old ? a) 0.951716b) 0.968048c) 0.980413d) 0.991871 Can someone slove this equation system please???? 4416 y204 z dz dx dyx2 + y2 3. Calculate the number of nickel atoms in a 5-cent coin of mass 0.942g if it was made of an alloy consisting of 75% copper and 25% nickel. Sheridan Company acquires 54, 9%, 5 year, $1000 Community bonds on January 1, 2020 for $54000.The journal entry to record this investment includes a debit toStock Investments for $54000.Debt Investments for $58860.Debt Investments for $54000.Cash for $54000. the two plates of a parallel-plate capacitor each have area 0.460 m2 , are 3.00 mm apart, and initially have vacuum between them. a power supply is attached to the capacitor, charging it to 4.00 kv , and is then disconnected. a dielectric sheet is then inserted that fills the space between the plates. the potential difference between the plates decreases to 2.50 kv , and the charge on each plate remains constant. find the original capacitance. what is the present value today of $800 you would receive 14 years from now if the interest rate is 5%? 404.05 978.82 505.06 762.94 Select ALL the correct answers.Which two cases would the Supreme Court be most likely to review?a case concerning a motor vehicle accidenta case concerning presidential actionsa case involving two members of Congressa case in which a federal law is challengedAnswer is 2&4 (pic attached) can anyone help me? the house was in the shape of an __________ , eight separate bedrooms on each side que numero dividido entre 7 da 800 ? The early microscopists often classified protozoans in the kingdom Animalia. (T or F) What theory is known for the claim that a company's overall value is not affected by their capital structure? A) None of the above B) Financial Theory C) Soros theory D) MM Proposition with Corporate Taxes E) MM Proposition without Taxes Team cohesiveness is more likely to emerge naturally in a(n) ________ culture. Group of answer choices collectivistic individualistic uncertainty avoiding uncertainty accepting what type of function is y=(x+1)^2-2