CHEMISTRY HIGH SCHOOL

What is required for reactants to form bonds? a. energy output
b. energy input
c. equilibrium
d. exchange reaction

Answers

Answer 1
Answer: a. Energy output 
since you need to release a certain amount of energy to hit the activation point.

Related Questions

How much of a 5.0 g sample of strontium-90 will remain after 87 years?
Our body needs iron. Certain foods are rich in iron and iron tablets are usually recommended by doctors. but neither the food nor tablets are hard like iron? Why?
The positively charged particles found in the nucleus of an atom are called ______.a. nuclear forces. b. electrons. c. protons. d. subatomic particles.
What does catalase do? Use the terms substrate and product in your response.
What is the total number of oxygen atoms in the formula MgSO4•7H2O? [The • represents seven units of H2O attached to one unit of MgSO4.](1) 11 (3) 5(2) 7 (4) 4

Which substance will combine with oxygen gas to produce a greenhouse gas? a. Na
b. S
c. H₂
d. Ne
e. C

Answers

The substance that combined with the oxygen to form a greenhouse gas has been carbon (C). Thus, option E is correct.

The greenhouse gases have been responsible for the entrapment of the sun's energy in the atmosphere, leading to the increase in the temperature of earth and making earth an appropriate place to live.

The greenhouse gases have been the carbon dioxide, methane, sulfur etc. that are able to entrap the energy.

The reaction of carbon with oxygen has been resulted in the formation of carbon dioxide. It has been a green house gas.

Thus, the substance that combined with the oxygen to form a greenhouse gas has been carbon (C). Thus, option E is correct.

For more information about greenhouse gas, refer to the link:

brainly.com/question/4509458
Carbon (C) will react with oxygen (O2) to produce CO2 (carbon dioxide) which is a greenhouse gas

How many Atoms are in 2.3 g of Na? show your work and these question will take two steps

Answers

Use stoichiometry and convert 2.3 grams of sodium to moles. Then convert the moles to atoms using 6.02(10)^23.

Post your answer and I'll post mine :)

Why do some substances react with each other while others do not

Answers

it depends on the Chemical the Substance has. The more Chemicals, the better the Substance gets when its mixed with another.

What is the velocity of a 500 kilgram elevator that has 4000 joules of energy?

Answers

Oct 15, 2016 - You'll have to use the formula to find kinetic energy, E=1/2*m*v^2 the ... input which is 4000 juoles, the mass is 500 kg and the velocity is what ...Kinetic/Potential Energy math problems? | Yahoo Answershttps://answers.yahoo.com/question/index?qid=20090326203307AACcKkzCachedSimilarMar 26, 2009 - You don't have to answer them all, only the one(s) you know. 1. What is the velocity of a 500 kilogram elevator that has 4000 Joules of energy?What is the velocity of a 800 kilogram elevator that has 3,560 ...May 19, 2013What is the velocity of an 500 kilogram elevator that has 4000 ...Jan 30, 2013What is the velocity of a 500 kg elevator that has 4,000 J of ...Oct 19, 2011can someone help me with a couple of science/math problems ...Nov 28, 2007More results from answers.yahoo.com[PDF]Ch. 11 Energy and Motion Review - Ms. Stalkermsstalker.weebly.com/uploads/3/2/1/1/.../ch.11_study_guide_review_answers.pdfCachedSimilarThe truck has greater kinetic energy because its ... Energy= joules. Weight= Newton ... What is the velocity of a 500-kg elevator that has 4000 J of energy?[DOC]Energy Problems (from combo page) - Midland ISDwww.midlandisd.net/cms/lib01/.../Energy%20Problems%20Gallery%20Walk.docCachedDetermine the amount of potential energy of a 5 N book that is moved to 3 ... What is the velocity of a 500 kg elevator that has 4000 joules of kinetic energy? Ans:.What is the velocity of an 500 kg elevator that has 4000 J of energywww.answers.com › ... › Categories › Science › Units of Measure › Weight and MassCachedSimilar1/2(500kg) • v^2 = 4000J V = √(4000÷250) = 4 m/s. ... 250 kg roller coaster car has 20000 J of potential energy at the top of the hill what is the velocity of the car at the ... KE = 1/2mV^2 300 Joules = 1/2(1500 kg)V^2 multiply through by 2 600 ...What is the velocity of an 500 kg elevator that has 4000 joules of energywww.answers.com › WikiAnswers › Categories › ScienceCachedSimilar500 joules is equal to 368.78 ft-lbf. For example, an object has 500 joules of kinetic energy, when its mass is 10 kg (~22 lbs) and it is traveling at 10 m/s (36 km/h ...What is the velocity of an 500-kilogram elevator that has 4000 joules of ...brainly.com › High School › PhysicsCachedMar 5, 2014 - ... is the velocity of an 500-kilogram elevator that has 4,000 joules of energy? ... Brainly has millions of high quality answers, all of them carefully ...Potential energy and Kinetic energy Flashcards | Quizlethttps://quizlet.com/151831434/potential-energy-and-kinetic-energy-flash-cards/CachedWhat is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per ... What is the velocity of an 500-kilogram elevator that has 4,000 joules of energy?Energy Problems Key.pdf - Owen J. Roberts School Districtojrsd.schoolwires.net/site/.../filedownload.ashx?...Energy%20Problems%20Key.pdfA description for this result is not available because of this site's robots.txtLearn more[PDF]Gravitational Potential Energy and Motional Kinetic _Enerqv Forms of ...www.mayfieldschools.org/.../Worksheet_MechanicalEnergy_2015_Solutions.pdfCachedSimilarmeasured in joules. ... kilograms) as well as the velocity or speed of that object. .... is the velocityiof a 500-kg elevator that has 4000 J of motional kinetic energy? .mfr{margin-top:1em;margin-bottom:1em}#brs{}#brs{margin-bottom:28px}#brs .med{color:#222;height:auto;padding-bottom:8px}.brs_col{font-size:14px;margin-top:-1px;padding-bottom:1px;display:inline-block;line-height:20px;vertical-align:top;max-width:100%;box-sizing:border-box}#brs ._e4b{margin:0;clear:both}#brs a{padding:3px 32px 3px 0;display:inline-block;float:left}#brs a{text-decoration:none}g-section-with-header{display:block;margin:40px 0}._ojo{padding:0 0px 12px 0px} Searches related to what is the velocity of a 500 kilogram elevator that has 4000 joules of energywhat is the mass of an object that creates 33,750 joules of energy by traveling at 30 m/sec?what is the mass of an object traveling at 30. m/s if it has 33,750 j of energy?what is the mass of an object traveling at 30m/s if it has 33 750 j of energywhat is the mass of an object that creates 33750 joules of energy by traveling at 30 m swhat is the mass of an object that creates 33 750 joules of energy by traveling at 30 m/secin a lab investigation one group of studentswhat is the kinetic energy of a 2,000-kilogram boat moving at 5 m/sec?what is the mass of an object that creates 33750 joules of energy by traveling at 30m/s

What is the cell potential?a. the difference in reduction potentials of the half-cells

b. the difference in oxidation potentials of the half-cells

c. the sum of reduction potentials of the half-cells

d. the sum of the oxidation of potentials of the half cells

Answers

The correct answer is the difference in reduction potentials of the half-cells.
E(cell)=E(cathode)-E(anode).  

You can also think of it as the reduction potential of the cathode plus the oxidation potential of the anode since if you reverse the sign of the reduction potential you have the oxidation potential
example E(cathode)=0.7V and E(anode)=-1.2V.  E(cell)=0.7V+1.2V=1.9V
(the reduction potential for the anode is -1.2V but the oxidation potential is 1.2V)

I hope this helps.  Let me know if anything is unclear.

If the atomic weight of nitrogen is 14.01, what is the mass of the nitrogen atoms in one mole of cadmium nitrate, Cd(NOÀ)

Answers

The answer is 28.02.

The chemical formula for cadmium nitrate is Cd(NO₃)₂.

There are in total 2 nitrogen atoms in Cd(NO₃)₂. If the atomic weight of nitrogen is 14.01, the mass of two nitrogen atoms in one mole of cadmium nitrate is 28.02:
2 · 14.01 = 28.02
Other Questions
Classify wine and beef stew as homogeneous or heterogeneous.
In which pair would both compounds have the same empirical formula? A. H2O and H2O2 B. BaSO4 and BaSO3 C. FeO and Fe2O3 D. C6H12O6 and HC2H3O2
What is the main product of the calvin cycle?
Juan created a chart to help him study for a test.A 2-column table. The first column labeled X has entries some light is reflected, some light is absorbed, no light passes through. The second column labeled Y has entries some light is reflected, some light is absorbed, some light is reflected, most light passes through.Which headings best complete the chart?X: Transparent ObjectsY: Opaque ObjectsX: Opaque ObjectsY: Transparent ObjectsX: High Frequency WavesY: Low Frequency WavesX: Low Frequency WavesY: High Frequency Waves