1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sdas [7]
3 years ago
5

Three students are working with different substances to measure the chemical changes that occur. Chao is working with milk, Mia

is working with carbon dioxide gas, and Ezra is working with rock. Which would best describe the way to treat each substance to get a faster reaction? Chao should change the temperature, Mia should adjust the pressure, and Ezra should increase the surface area. Chao should change the concentration, Mia should adjust the temperature, and Ezra should increase the surface area. Chao should change the temperature, Mia should adjust the concentration, and Ezra should decrease the surface area. Chao should change the concentration, Mia should adjust the pressure, and Ezra should decrease the surface area.
Chemistry
2 answers:
yawa3891 [41]3 years ago
4 0
For chao who is working  with milk, he should adjust the temperature of the milk to have a faster reaction. for ezra who is working with rock, she must increase the surface area of the rock to increase the reaction rate, this can be done by grinding. and for mia who is working with carbon dioxide gas, she should adjust the pressure
yanalaym [24]3 years ago
4 0

The answer is: Chao should change the temperature, Mia should adjust the pressure, and Ezra should increase the surface area.

Milk is a liquid, carbon dioxide is a gas and rock is a solid.

The increase in energy will cause the reactants particles to move faster, which will increase their temperature and lead to a faster reaction rate.

The reaction rate is the speed at which reactants are converted into products.

The collision theory states that a certain fraction of the collisions (successful collisions) cause significant chemical change.  

The successful collisions must have enough energy (activation energy).  

If the surface area and temperature are increased, speed of reaction also increased.

Particles are in constant, random motion and possess kinetic energy, molecules faster and have more collisions.  

You might be interested in
Calcium reacts with water. This reaction is represented by the balanced equation below. The aqueous product of this reaction can
Harrizon [31]
The aqueous product conducts electricity while the solid does not. Ionic solids do not conduct electricity, but ions dissolved in solution do. The chemical name of the base is calcium hydroxide. Increasing the temperature of the system would increase the rate of the reaction.
6 0
3 years ago
Read 2 more answers
State the importance of oxygen for germination process
tamaranim1 [39]
Plants need oxygen to survive. 
3 0
3 years ago
A pharmaceutical company wants to test the efficiency of its new drug production techniques so they run 3 shifts of production f
spayn [35]

The percentage yield of the  new production technique is 82.8%

<h3>What is the percentage yield?</h3>

Production is the procedure by which finished products are obtained form the raw materials. The production process involves the passing of raw materials through a certain procedure that involves the use of certain machines and equipment to give us the required products.

We are told in the question that there are three shifts;

Shift 1 produces 4562 grams

Shift 2 produces 5783 grams

Shift 3 produces 5247 grams

Average production from the three shifts = 4562 grams + 5783 grams +  5247 grams/3 = 5197 grams

The theoretical average yield is =  7000 grams + 7000 grams + 7000 grams/3 = 7000 grams

Now the percentage yield = actual yield/ theoretical yield * 100/1

percentage yield = 5197 grams/7000 grams * 100/1

percentage yield = 82.8%

Learn more about percentage yield :brainly.com/question/27492865

#SPJ1

3 0
2 years ago
Given the equation:
My name is Ann [436]

Answer:

this isnt even a question...

Explanation: what the heck

6 0
3 years ago
What is hexane?
Mamont248 [21]

Answer:

C. A hydrocarbon molecule containing six carbon atoms and only

single bonds

Explanation:

hope it helps

8 0
3 years ago
Other questions:
  • Water (h20) is composed of the same element as hydrogen peroxide (h202) how do their properties compare?
    5·2 answers
  • A slice of Swiss cheese contains 41 mg of sodium.
    7·1 answer
  • Calculate the velocity of a car that travels 556 kilometers northeast in 3.4 hours. Leave your answer in kilometers per hour.
    6·1 answer
  • Calculate the number of milliliters of 0.753 M KOH required to precipitate all of the Pb2+ ions in 135 mL of 0.775 M Pb(NO3)2 so
    8·1 answer
  • What is the primary force that helps suspension bridges use cables to hold their spans up?
    6·2 answers
  • Help ASAP!!
    10·1 answer
  • This graph represents an endothermic reaction. What does it show about the potential energy of reactants and products? Abuzua nu
    11·1 answer
  • Write True If the statement Is Correct And False If Not​
    15·2 answers
  • Which of the following conversion factors would be used to calculate the number of moles of Cl2 produced if 11 moles of HCl were
    8·1 answer
  • The VSEPR model was developed before any xenon compounds had been prepared. Thus, these compounds provided an excellent test of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!