In an exothermic reaction, chemical energy is converted to

1.thermal
2. mechanical

Answers

Answer 1

Answer:

thermal, I'm not 100% sure though.

Answer 2
Thermal. As the definition of a exothermic relation is any reaction that release heat. Remember that it’s in the word exo-“thermic”

Related Questions


What are the cons of using a cup made of steel?

Answers

Answer:

1. Sometimes there’s a metallic taste to the water

2. The water becomes hot if left in your car or outdoors in hot weather

3. Bottle can dent if dropped

4. Paint sometimes peels off exterior of metal bottles

5. Metal water bottles lined with a resin lining also leach BPA. Do not get a bottle with what appears to be a “colored” lining of any kind.

Explanation:

Answer:

Steel feels cold, can dent, and is heavy. Sometimes it has a strange taste. Steel can also stain with use.

Explanation:

Hope this helps! :)

What should the range for "Light Intensity" be?

A.0-18-0-18%

B.24-51% 24-51%

C.79-90% 79-90%

D.100%

Answers

The answer is c
Hopes this helped!

The original phase and final phase of a substance are shown. Phase Transition Original Phase Final Phase Solid Liquid What most likely happened during the phase transition?

Answers

Answer:

The question appears to speak to the process between Liquid and Solid phases of a substance and seeks to resolve what happened in between.

The short answer is that the solid melted.

Explanation:

Melting is the process of a solid becoming fluid. When the reverse happens, (that is a liquid being solid), is called solidification. There is a temperature at which substances take their liquid form. That temperature is called the melting point. The melting point of ice (that is the temperature at which it starts to turn back to water) for instance is 32 °F.

According to the mechanics of melting, the internal energy of the solid increases, because of exposure to heat and or pressure usually through the application of heat or pressure, which increases the substance's temperature to the melting point.

Cheers    

Answer:

Explanation:

the other guy who answered must be retded cause melting isnt even a choice.

Correct Option the substance froze.

Give an example of kinetic energy

Answers

Answer: A river flowing at a certain speed comprises kinetic energy as water has certain velocity and mass. The kinetic energy of an asteroid falling towards earth is very large. The kinetic energy of the aeroplane is more during the flight due to large mass and speedy velocity.

Explanation:

HELPPP
i’ll give brainly :)))

Answers

Answer:

12. 2.9 g= 0.0029   13. 14.7 L = 14700 ml

14. The chemical formula of magnesium hydroxide is Mg(OH)2, and its molar mass is 58.32 g/mol.

Explanation:

The equation below shows a reaction that is second order in A and first order in B.

2A(9) +B(g) → C(g)

What is the rate law for the reaction?​

Answers

It’s the second one because the order of it is used as the exponent for it in the rate law equation

Which state or states of matter have fixed volume but not a fixed shape?

Answers

Answer:

gas and liquid

Explanation:

Help asap.
How many moles are 5.55x10^25 atoms of Mg

Answers

Answer:

[tex]\boxed {\boxed {\sf About \ 92.2 \ moles \ of \ Magnesium}}[/tex]

Explanation:

To convert from atoms to moles, we must Avogadro's number:

6.022*10²³

This number tells us the amount of particles (atoms, molecules, etc.) in 1 mole of a substance. In this case, it is atoms of magnesium in 1 mole.

6.022 *10²³ atoms Mg / 1 mol mg

Now, let's set up an expression using:

[tex]\frac {6.022 * 10^ {23} \ atoms \ Mg}{ 1 \ mol \ Mg}[/tex]

Multiply this by the given number of atoms.

[tex]5.55*10^{25} \ atoms \ Mg *\frac {6.022 * 10^ {23} \ atoms \ Mg}{ 1 \ mol \ Mg}[/tex]

Flip the fraction so the atoms of magnesium can cancel.

[tex]5.55*10^{25} \ atoms \ Mg *\frac { 1 \ mol \ Mg }{6.022 * 10^ {23} \ atoms \ Mg}[/tex]

[tex]5.55*10^{25} *\frac { 1 \ mol \ Mg }{6.022 * 10^ {23}}[/tex]

Multiply and condense this into 1 fraction.

[tex]\frac { 5.55*10^{25} \ mol \ Mg }{6.022 * 10^ {23}}[/tex]

[tex]92.1620724 \ mol \ Mg[/tex]

The original measurement had 3 significant figures, so our answer must have that many as well. For the number we calculated, that is the tenth place. The 6 in the hundredth place tells us to round the 1 to a 2.

[tex]92.2 \ mol \ Mg[/tex]

It is about 92.2 moles of magnesium.


I’ll give brainliest, pls help with this mole concept. Due in 2hours

Answers

Answer:

20 g of copper (II) oxide, CuO

Explanation:

The balanced equation for the reaction is given below:

CuO + 2HCl —> CuCl₂ + H₂O

From the balanced equation above,

1 mole of CuO reacted to produce 1 mole of CuCl₂.

Next, we shall determine the number of mole of CuO needed to produce 0.25 mole of CuCl₂. This can be obtained as follow:

From the balanced equation above,

1 mole of CuO reacted to produce 1 mole of CuCl₂.

Therefore, 0.25 mole of CuO will also react to produce 0.25 mole of CuCl₂.

Finally, we shall determine the mass of 0.25 mole of CuO. This can be obtained as follow:

Mole of CuO = 0.25 mole

Molar mass of CuO = 64 + 16

= 80 g/mol

Mass of CuO =?

Mole = mass /Molar mass

0.25 = mass of CuO /80

Cross multiply

Mass of CuO = 0.25 × 80

Mass of CuO = 20 g

Therefore, 20 g of copper (II) oxide, CuO is needed for the reaction.

10 Look carefully at the picture. it shows an electron in the excited state on the left, and the
electron returning to its ground state on the right. When the electron return to the ground state it
emits
photon
excited state
ground state
a) blast of cold air
c) proton
b) electrostatic charge
d) photon (light)

Answers

Answer: Photon


Explanation: The diagram shows that as the electron goes from a charged state to a ground state a red photon was emitted.

kind of protists can live in groups with different individuals performing different jobs (site 1)

Answers

Answer:

The plasmodial slime molds are the kind of protist that can live in groups in which different individuals perform different jobs. Some kinds of bacterial cell walls also have other functions.

PLEASEEE HELP ASAPPPPP

Answers

Answer: answer A

Explanation: because it gives more detail and a summarizations

You are working a crime scene and discover a weapon. How do you pick up the weapon so you do not disturb
any latent fingerprints?

Answers

Answer:

you pick it up with gloves and make minimal contact with it

You would pick up the weapon with gloves from the bottom, this insures that you have minimal contact with it and not much DNA is wiped off.

I need chemical properties of matter that can be classified.

Answers

Answer:

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule.

Explanation: if this isnt want you need tell me in the comments

how many atoms are in 7.3 moles of arsenic atoms? 1 mol = 6.02 x 10^23 particles

Answers

Answer:

6,9

Explanation:

True or False: Potential and kinetic energy are fixed and do not convert between the two types. *
10 points

Answers

Answer:

false

Explanation:

According to the law of conservation of energy, energy can neither be created nor destroyed but can be converted from one form to another. Hence, the given statement is true.

What is law of conservation of energy?

According to law of conservation of energy, it is evident that energy is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of energy is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Julius Robert Mayer in the year 1842.

Learn more about law of conservation of energy,here:

https://brainly.com/question/12050604

#SPJ2

A teacher asks students to make a model of a transform plate boundary. The
students use blocks to represent tectonic plates and slide the blocks past each
other in the directions of the arrows as shown.
Transform Plate Boundary
Plate
Plate
Which event can the student best demonstrate with their model?

Answers

Answer:

C Earthquake

Explanation:

I just took this test and it’s on Quizizz

The event which best describes the model is an Earthquake. Earthquake is

formed when two plate boundaries collide with each other.

The plate boundaries colliding results in them being stuck. Pressure then

builds up between them which results in the plates breaking loose as time

goes on.

The movement that results from the plates breaking loose is what results in

an earthquake being experienced.

Read more on https://brainly.com/question/20409140

According to the Heisenberg uncertainty principle, it is impossible to know both the __ and __ of an electron simultaneously.
a. mass and charge
b. position and velocity
c. mass and position
d. velocity and charge

Answers

Answer:

C

Explanation:

It's simple because there were so many quantitative analysis of error and they didn't had the kind of observations as we have now

both of janies parents have dark hair. how likely is janie to have blonde hair? ​

Answers

Answer:

The probability of Janie to have blonde hair would be a slim 13% to a 34%.

Explanation:

Not 100% sure but best estimation I can come up with.

Tell me what you think in galaxies do aliens exist tell me why and your view


Step by step

Answers

Answer:

I do not know. I think there is .as we are the living creatures in this earth. maybe aliens are creatures of other planet or galaxies. I am not scientists to prove it.sorry.

What unit is used to measure weight?

Answers

newtons
The unit of measurement for weight is that of force, which in the International System of Units (SI) is the newton. For example, an object with a mass of one kilogram has a weight of about 9.8 newtons on the surface of the Earth, and about one-sixth as much on the Moon.

Answer:

The unit is: Newton.

Hope it helps:D

Does the following compound contain a polyatomic ion? Na2SO4
Yes
No

Answers

The answer is yes I believe so.

A bathtub is half full of warm water. How could the
thermal energy of the water be increased? Check
all that apply.

Answers

Answer: A. B and C

Explanation:

I'm pretty sure this is right....

Have a great day :)

Answer: It is A,B. and C.= Add hot water to the tub.

Heat the water in the tub without adding more water.

Add more water at the same temperature to the tub.

Explanation: I got it correct.

Please help (: What are the sources and stages of a river ?

Answers

Water, ALSO if you cant figure out the answer looking up on g00gl3e

3 Stages of a River

YOUTHFUL STAGE (UPPER COURSE) – V- Shaped Valley > Erosion. ...

MATURE STAGE (MIDDLE COURSE) – Meanders > Erosion and Deposition.

OLD AGE STAGE (LOWER COURSE) – Floodplains > Deposition. ...

Advantages. Scenic Attraction. ...

Dangers. Flooding – Damage to property, land, animals and homes. ...

Describe what causes the airbag to inflate on the particle level

Answers

Answer:

The chemical at the heart of the air bag reaction is called sodium azide, or NaN3. CRASHES trip sensors in cars that send an electric signal to an ignitor. The heat generated causes sodium azide to decompose into sodium metal and nitrogen gas, which inflates the car's air bags

Explanation:

The chemical at the heart of the hair bag

This is the type of wave that travels in one direction but the energy travels in the opposite direction

Answers

Answer:

Transverse wave

Explanation:

A wave is defined as a disturbance along a medium which transfers energy from one point to another.

A wave may be classified as transverse or longitudinal based on the direction of energy transfer relative to the direction of wave motion.

In a transverse wave, energy is transferred in a direction perpendicular to the direction of wave travel. Hence, the direction in which the energy travels is opposite to the direction in which the wave travels.

True/False: There are about 400 known elements

Answers

Answer: false

Explanation:

there are no more then 112 known elements.

Answer:

false

Explanation:

their are only 118 element

Help please!!! How many grams are in 3.46 moles of Sulfur?

Answers

Answer:

The answer is: 78.04454 grams

Explanation:

Answer:

IHi the answer is 32.065 grams

Is N2F5 ionic or covalent

Answers

Answer:

it's a covalent compound

Explanation:

Two non metals are bonded to together

HELP PLSSSSSS ASAPPPPP

Answers

Based on my knowledge of science so some may be wrong...
My key
Synthesis Reactions = SR
Decomposition Reaction = DR
Single Replacement Reaction’s = SRR
Double Replacement Reactions = DRR
Combustion Reactions = CR
#1 SR
#2 SR
#3 SR
#4 SRR
#5 DRR
#6 SR
#7 DR
#8 DR
#9 sorry not sure
#10 DR
#15 SR
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In the Arab Empire, Muslims did not force Jews and Christians to convert to Islam.Which detail most likely explains that policy? A Jews, Christians, and Muslims have the same prophets.B Judaism, Christianity, and Islam share fundamental beliefs.C Jews, Christians, and Muslims practice the same Five Pillars.D Judaism, Christianity, and Islam originated in the same geographic area. Force (N) = 250Mass (kg) = 221Acceleration (m/s^2) = ? Is Mesopotamia Located North of the Arabian Desert? What Geologic feature allows for humans to access oil and natural gas? What nutrients from foodare getting passed fromthe inside of the intestines(lumen) across the lining? Help thank you please balance de CO2 + H2O A squirrel runs across a road in 3 seconds. The road was more than 34 feet wide.Which inequality can be used to determine the squirrels speed?a. 3r greater than 34b. 3r less than 34c. r/3 greater than 34d. r/3 less than 34 Please help im struggling with this unit pls help How was the university of georgia established and why? Giving brainliest!!!!! Please help Which processes produce the carbon dioxide from the original glucose molecule? Which processes do NOT produce CO2 molecules? (this is abt cell respiration) What are the coordinates of the point in the directed line segment from (-2,-8) to (5,-1) that partitions the segment into the ratio of 1 to 6? A die is rolled two times.What is the probability of getting a 2 on the first roll and a 5 on the second roll? Make the following phrases plural. Remember to use the correct plural (definite orindefinite) article and the correct form of the adjective. The first one has been done for you.5. La fille canadienne: les filles canadiennes6. Le professeur franais:7. 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Mrs. Roosevelt is the most popular and controversialwoman alive today. What will you say to her? What can be said to a person who resigns over aconflict with her conscience? Using the space below, write her a letter in response to her resignation.After you complete your letter, read the actual letter written by Mrs. Henry M. Robert, Jr., the presidentgeneral of the DAR. Compare the letters; pointing out how you think her letter could have been more effective and repentant.______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ __________________________________________________________________________________________________________________________________________________________________________