Which of the following best explains why most chemical reactions proceed more quickly when the concentrations of reactants are increased?a. The increased concentration increases the number of collisions between molecules.
b. The products of chemical reactions are more stable at higher concentrations.
c. At higher concentrations, reactant molecules move more quickly.
d. At higher concentrations, product molecules are able to catalyze the reaction.
Answers
Because you increase the concentration of the reactants, it means that there are more molecules of the reactants present in a smaller amount of space.
This being the case, there is a higher chance that these molecules will collide with enough energy to overcome the activation barrier.
The other ones are completely wrong, but if you would like an explanation as to why they are, just ask :)
Answer:
The increased concentration increases the number of collisions between molecules.
Explanation:
I just took the test. Flvs
Related Questions
Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you.The lines of magnetic force at any point in the magnetic field will act inA. the same direction as the current.B. a clockwise direction.C. a counterclockwise direction.D. the direction opposite to the current.
How long does water evaporation take? What factors influence it?
Equal amounts of water are kept in a cap and in a dish which will evaporate faster ?why
A tank with a flat bottom is filled with water to a height of 4 meters. What is the pressure at any point at the bottom of the tank? (You can ignore atmospheric pressure when calculating your answer.)A. 18.9 kPaB. 9.8 kPaC.39.2 kPaD. 4.0 kPa
B. a wire connected in a complete loop
C. a source of electrical energy
Answers
Answer: The correct answer is an electrical insulator.
Explanation:
Insulator : It is a material which resists the flow of electrons. It has high resistance in comparison to the conductor.
Conductor: It is a material which allows the flow of electrons. It has low resistance in comparison to the conductor.
Battery is a source of electrical energy. It forces the electrons to flow. The rate of flow of electrons constitutes the current.
In the given problem, an electrical insulator is not needed for a charge to flow through a conducting wire.
To design the circuit and to make a current flow in the circuit, a battery, a wire connected in a complete loop and a source of electrical energy are needed.
Therefore, the correct option is (C).
Answer: Letter A
Hope that helps! -UF aka Nadia
Answers
Answer:
false
Explanation:
my brain is always correct
Answers
The gravitational potential energy of the object falling from 18 m height is 36 J. Thus, its mass is 0.2 Kg.
What is gravitational potential energy?
Gravitational potential energy of an object is the energy generated by virtue of its position in a gravitational field. The magnitude of gravitational potential energy is directly proportional to the mass of the object , height from the surface and the acceleration due to gravity.
GPE = mgh
The height of the object falling = 18 m
Gravitational potential energy = 36 J
Acceleration due to gravity in earth = 9.8 m/s².
Mass of the object = GPE/ (gh)
= 36 J/ (18 m×9.8 m/s² )
= 0.20 Kg.
Therefore, the mass of the object is 0.20 Kg.
To find more on gravitational potential energy, refer here:
#SPJ2
Where 'g' is the gravitational constant (9.81 m/s^2)
If you're solving for m, you can change the equation to be (PE/gh)=m.
m=(36J/18m*9.81m/s^2)
m=.2kg
b. natural gas
c. nuclear
d. renewable energy
Answers
d. renewable energy
Explanation
Energy can be said to be one of the most basic commodity in the 21st century. Every household uses energy in almost all its doing eg. cooking lighting, cleaning, entertainment such televisions and radios, communication etc.
For this reason, the scientist have to find the most sustainable source of energy. Some are not sustainable as they can be used up and other pollute the environment.
By the year 2030, the most expected source of energy to have the highest rate of consumption is renewable energy.
just took the test answer is a.coal on e2020 and edge Explanation:
Answers
When Tyler drives 50 km north and then drives back 30 km south, we have:
1. The distance that he covers is 80 km.
2. Tylor's displacement is 20 km.
1. The distance is a scalar that is given by the sum of the kilometers traveled by Tyler as follows:
Hence, the distance traveled by Tyler was 80 km.
2. The displacement is a vector that depends on the direction of travel. Takin the north direction as positive we have:
Therefore, Tyler's displacement is 20 km.
You can find more about displacement and distance here: brainly.com/question/4307551?referrer=searchResults
I hope it helps you!
Answer:
80 km is distance and 30km north is displacement
Explanation:
distance= 50+30=80km
displacement= 50-20=30
his displacement is 30km north
b) gram (used to measure mass)
c) cubic centimeter (used to measure volume)
Answers
Answer:
Option (c)
Explanation:
The combination of two or more fundamental units is called derived unit. For example, cubic metre, newton per metre, metre per second.
Thus, cubic centimetre is a derived unit.