Can anyone help me with these science questions?

1. What is collision theory?


2. How does collision theory relate to factors that affect reaction rate?



3. Define reaction rate.


4. List factors that influence the rate of a chemical reaction.


5. Choose one of the factors you listed in your answer to question 2, and explain how it affects reaction rate.

Answers

Answer 1

Answer:

This is where google becomes your best friend but I got you

Explanation:

1.  A theory used to predict the rates of chemical reactions, particularly for gases. The collision theory is based on the assumption that for a reaction to occur it is necessary for the reacting species (atoms or molecules) to come together or collide with one another.

2. Collision theory says that chemical reactions occur by the collisions between atoms and molecules, so the more collisions the faster the rate of the chemical reactions.

3. The speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.

4. There are four main factors that can affect the reaction rate of a chemical reaction:

Reactant concentration. Increasing the concentration of one or more reactants will often increase the rate of reaction. ...

Physical state of the reactants and surface area. ...

Temperature. ...

Presence of a catalyst.

Answer 2

Answer:

1. a theory that says a chemical reaction takes place when particles of the reactants collide with sufficient energy to initiate the reaction

2. Increasing the concentration of the reactants, the faster the particles will collide so the reaction rate will be faster

3. a measure of how fast a reaction takes place

4. Temperature, presence of a catalyst, reactant concentration, surface area

5.

Explanation:

not sure how to do number 5 sorru


Related Questions

Which phrase gives two processes scientists think move the Earth's lithospheric plates?

pls answer correctly to earn Brainliest

science class btw

Answers


gravity acting on the edges of plates and convection in the mantle
Gravity acting on the edges of plates and convection in the middle

In your own words, describe the region around the atom

Answers

Answer:

Unlike protons and neutrons, which are located inside the nucleus at the center of the atom, electrons are found outside the nucleus. Because opposite electric charges attract each other, negative electrons are attracted to the positive nucleus.

Explanation:

Answer:v yes byes vI vto

Explanation:

Rn hh b

Pls help meh......Due at 3:00
What type of elements bond covalently?
What are two covalently bonded atoms called?
When drawing an electron dot structure, should you pair up as many electrons as you can around their original atom or should you leave them single?
How does this help you discover how many bonds they will form?
If a molecule has a triple bond, how many pairs of electrons does it share? How many total electrons is that?
What is a molecular compound?
What are properties of molecular compounds?
Why are molecular compounds poor electrical conductors?
How do bonded atoms become partially charged?
What is a nonpolar bond?
What is a polar bond?
Do you think water in the Dead Sea would conduct electricity? Why?

Answers

Answer: most molecular compounds poor conductors because they do not have charged particles to carry current.

Explanation:

Please help meeee ;-;

Answers

Answer:

number (12 is c)  (13 is 5) (14 is 5)

Explanation:

Answer:

12:B 13: 5 m/s 14: 5 m/s

Explanation:

12: this is a position vs time graph, and that worded description matches the graph because the slope of a p vs t graph is the velocity

13: again, the slope of a position vs time graph is the velocity. 10m/2s = 5 meters a second or m/s

14: same thing. the object travels 30 m in 6 s so 30/6=5 m/s

Using the word bank below label the wave.

A Trough. B Crest. C Amplitude. D Wavelength.

3). 4). 5). 6).

Answers

Answer: crest I don’t really know how to explain it but yea it’s crest

Crest B it’s the 2 humps which is called the crest

To investigate how mechanical energy affects the number of times a ball will bounce back, Maria dropped a ball from three different heights. Which of the following would be a reasonable conclusion from this experiment?

The height from which a ball is dropped does not affect the number of times it bounces.
Increasing the height will give the ball more energy and will increase the number of times it bounces.
Increasing the height will give the ball less energy and will decrease the number of times it bounces.
Decreasing the height will give the ball more energy and will increase the number of times it bounces.

Answers

Answer:

C. Increasing the height will give the ball more energy and will increase the number of times it bounces.

Explanation:

B. Increasing the height will give the ball more energy

Help me plz <3 I need an answer right now!!!

Answers

Answer:

its b watch

Explanation:

They already know the distance if they know the time then they can find their speed. For example Mph is miles per HOUR therefore all they need is distance and time

Its b because its very easy and thank you

Which form of energy is used as a roller coaster moves down the track?

a roller coaster moving down a track


Chemical energy
Light energy
Mechanical energy
Solar energy

Answers

Answer:

Mechanical energy

Explanation:

the answer is mechanical hope this helps

I’ll give branliest to the best answer! Thanks!

Answers

The moon fully covers the sun (looking at it from earth).
A solar eclipse happens when the moon gets in the way of the sun's light and casts its shadow on Earth. That means during the day, the moon moves over the sun and it gets dark. A partial eclipse, when the moon doesn't completely cover the sun, happens at least twice a year somewhere on Earth.

HELP i will give crown and 15 points
Based on the chemical equation provided, use the drop-down menu to choose the coefficients that will balance the chemical equation.


(__)H2 + (__)O2 → (__)H2O
1 1 1
2 2 2
3 3 3 It's gives 123 for all of the choices

Answers

Answer:

Sorry i cant see this question

Explanation:

Sorry

It’s 2 1 2 as oxygen on RHS will have 2 oxygens which makes hydrogen 4 and since hydrogen is already 2 to make it 4, we just have to multiply by 2.

Help please
which pair of appliances transforms electrical energy into Mechanical energy
A) Lamp :Trampoline
B) Fan : Drill
C) Trampoline : Fan
D) Drill : Rubber Band

Answers

i think it’s A. A lamp is electrical energy and a trampoline is mechanical energy.

Answer:

A) Lamp:Trampoline

ok GUYS out there answer this
can u guys ask me a ques. that your to afraid to ask to a girl

Answers

Explanation:

Usually it's being afraid of getting rejected but your just afraid of being yourself

Answer:

im not afraid

Explanation:

Choose the abiotic factors that characterize the tundra biome.

Warm, wet forests
Very little rainfall, extreme temperatures
Arctic foxes, snowy owls, wolves
Very low temperatures, very little precipitation

Answers

Tundra biomes have very low temperatures and little precipitation. :)

What does it mean for waves to be absorbed? Make sure to include energy in your explanation.

Answers

Answer:

The energy of a wave is transferred to the material it encounters. Ex.) When the ocean waves meet the shoreline, most of their energy is absorbed by the shore.

Explanation:

Ex.) When the ocean waves meet the shoreline, most of their energy is absorbed by the shore.

Wave absorption takes place when a wave transfers its energy to the atoms and molecules of the medium it comes in contact with.

What does it mean for a wave to be absorbed ?

When a wave is absorbed, matter absorbs energy from the wave, lowering its amplitude. When a sound wave strikes foam padding, for example, the energy passes through the material and is sometimes converted into heat or other forms of energy.

The energy of a wave is transferred to the particles in the surface when it is absorbed by a surface. This usually causes the particles' internal energy to increase.

Some wavelengths or colors of light are absorbed when white light shines on an opaque object.

Thus, Wave absorption takes place when a wave transfers its energy to the atoms and molecules of the medium it comes in contact with.

To learn more about wave, follow the link;

https://brainly.com/question/25954805

#SPJ2

What do cuticles do for land plants that were not necessary for ancestors that lived in the water?

Cuticles allow them to grow bigger and taller.
Cuticles help them transport water.
Cuticles help prevent water loss.
Cuticles allow the performance of photosynthesis.
HELP PLS AND THX

Answers

Answer:prevention of water loss would be unnecessary

Explanation:

edge 2021

Cuticles are protective lining in the epidermal layer of plants. Cuticles helps to reduce water loss and protect the plants from environmental stresses.

What is cuticles?

Cuticle is an organism's external layer or area that makes touch with the environment. The epidermis secretes the dead, noncellular cuticle in many invertebrate species. In humans, the cuticle is the epidermis, and this layer may include colours and chitin, similar to arthropods.

The cuticle is a protective coating that protects the epidermal cells of leaves and other organs while preventing water loss in some higher plants.

It is made up of cutin, a waxy, water-repellent compound related to suberin that is present in the corky tissue's cell walls. Hence, option c is correct.

Find more on cuticles:

https://brainly.com/question/28578072

#SPJ2

Which of the following is considered a standard unit of length in the United States?


A:square inch

B:cubic yard

C:yard

D:acre

Answers

Answer:

yard

Explanation:

Answer:

c

Explanation:

How does sound energy travel?

By sound circles
By sound drums
By sound lines
By sound waves

Answers

Answer:

I think its By sound waves..

The correct answer is D) by sound waves.

Hope you have a blessed day!

Ok so whoever can answer all of these for me gets brainliest don't do a hypothesis though because I do that on my own just the independent and dependant variables pls
What effect does road salt have on cars?
Hypothesis:
Independent variable:
Dependent variable:

What effect does fertilizer have on rose bushes?
Hypothesis:
Independent variable:
Dependent variable:

What effect does salt levels have on blood pressure?
Hypothesis:
Independent variable:
Dependent variable:

Do light levels have an effect on bird migration?
Hypothesis:
Independent variable:
Dependent variable:

What effect does artificial sweetener have on blood sugar levels?
Hypothesis:
Independent variable:
Dependent variable:

Answers

Answer:

I = road salt

D= cars

I = fertilizers

D= rose bushes

I = salt levels

D = blood pressure

I = light levels

D= bird migration

I = artificial sweetners

D = blood pressure

Explanation:

independent variable is the one that is changed.

Dependent variable is the one that has to stay constant.

God, cure my stupidity.

Answers

the answer is the third one

In your own words (Please don't search it up, and don't answer if you don't know.)
Please tell me the meaning of Outcome Variable and Test Variable
Thank you!

Answers

Answer: An outcome variable is a variable that is the final or missing variable in an experiment and a test variable is a variable that is being tested to find the final variable or missing variable (The outcome)

Explanation:

Would the car be able to travel all the way through the track of the roller coaster shown below? Why or Why not?


Yes, because there is enough Potential Energy at Point 1 to make it all the way through point 5.

Yes because there is enough Kinetic Energy at Point 1 to make it all the way through point 5.

No because there is not enough Potential Energy at Point 1 to make it all the way through point 5.

No because there is not enough Kinetic Energy at Point 1 to make it all the way through point 5.

Answers

Answer:

No because there is not enough Potential Energy at Point 1 to make it all the way through point 5.

Explanation:

Answer:

So first its common sense lol. So of course it would be enough Potential energy to go up excample like a bow-n-Arrow it goess up then down because of Gravity!!!!

Hope this hellped even though someone else said the same answer XD

⚠️An irregular piece of iron has a mass of 78.7 grams. When placed in a graduated cylinder with 30 mL of water, the water rises to the 35 mL ​⚠️

Answers

Answer:

The density of the iron is: 15.74g/cm3

Explanation:

-To determine the density of something, you have to divide the mass and the vol.

-mass/volume = density or, m/v = d

-The mass of the iron is: 78.7 grams

-The volume of the iron is 5mL

In order to find the density, you have to divide:

m/v = d

78.7g ÷ 5mL = 15.74

Hope This Helps (:

The density of the iron is 15.74 g/cm3

Willa holds a pan over a campfire, as shown in the figure below. She feels warmth from the fire.

Most of the warmth Willa feels comes from the process represented by letter Z. What is this process ?

Answers

Answer:

thermal radiation/ transfer of heat

Answer:

thermal radiation

Explanation:

PLEEAASSEE HEELLPP MEE I NEED THIS ANSWER TO FINISH THE LAST QUESTION!!!!

Answers

The product label should be at the bottom hopes this helped

Answer: Elements or compounds that enter are Reactants.

The substances that are formed are the Products

Reactants in C6H12O6 + 602 ---> 6CO2 + 6H2O are  C₆H₁₂O₆ + 6 O₂

Reactants in 6 CO2 + 6H2O --->C6H12O6 + 602 are    6 CO₂ + 6 H₂O

Reactants in 2 H2 +O2 ---> 2 H2O  are  2 H₂ +O₂

Reactants in 2 H2O ---> 2 H2 + O2  are  2 H₂O

Explanation:

The number of atoms in the reactants have to balance with the number of atoms in the products.

The first two examples given are for metabolism of carbohydrates (similar to combustion of hydrocarbons) and photosynthesis.

9. Mixing baking soda and vinegar leaves behind water and salt. This is an example of mixing ________ and __________. Is it a chemical or physical reaction?

Answers

Answer:

Mixing baking soda and vinegar is a chemical reaction. I’m not so sure about the fill in the blanks.

Explanation:

It is a chemical change due to the formation of gas and the change in temp.

It is a chemical reaction

Please help It is due today
only the second, third, and forth one

Answers

Answer:

why is this still up 2 years later

Explanation:

What is the funtion of the lungs in the respiratory system? (Use complete sentences.)

Answers

Answer:

The lungs' main role is to bring in air from the atmosphere and pass oxygen into the bloodstream. From there, it circulates to the rest of the body. Help is required from structures outside of the lungs in order to breath

Explanation:

Explanation: The lungs are the most important part of the respiratory system. They give air to serve the whole entire body. Lungs are one of the most vital organs of the body, since they help us breathe, and if we did not breathe, we would die.

Hope this helps you!

Please help with !!!!!!!!

Answers

Can we see the graph
It will be the letter (b) it’s not that hard

Comment if you dressing up for Halloween

Answers

Answer:

BRUHHHHH IMA BE IN MEXICO BUT SINCE THEY DONT CELEBRATE AND ONLY CELEBRATE NOVEMBER 1-2 I AM MAKING CANDY BAGS FOR THEM ON HOLLOWEEEN YAEEETTT BUT IMA TRY TO DO CLOWWWWNNNN MAKEUPPPP

Explanation:

AHHHHHHHHHHHHHHHHHHHHHHHHHHHH

Who do you think should be responsible for cleaning up all the space junk orbiting the earth? Please I really really needed help

Answers

Answer:

Every spacefaring country.

Explanation:

Space junk is no one countries' responsibility, but the responsibility of every spacefaring country. The problem of managing space debris is both an international challenge and an opportunity to preserve the space environment for future space exploration missions.

Hope this helps

Taken from google :/

the people that are throwing the juck on the the ground
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