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
tresset_1 [31]
4 years ago
9

Which analogy can best be likened to the activation energy of a chemical reaction? a drain through which water flows a slide dow

n which a child descends a hill over which a wagon is pushed an alley down which a bowling ball is rolled?
Chemistry
2 answers:
Nina [5.8K]4 years ago
7 0
Answer is: <span>a hill over which a wagon is pushed.
</span>For all chemical reaction some energy is required and that energy is called activation energy (<span>energy that needs to be absorbed for a chemical reaction to start)<span>.
There are two types of reaction: endothermic reaction (chemical reaction that absorbs more energy than it releases) and exothermic reaction (chemical reaction that releases more energy than it absorbs).
</span></span>R<span>eactions occur faster with a catalyst because they require less activation energy.</span>
statuscvo [17]4 years ago
4 0

The correct answer is a hill over which a wagon is pushed

You might be interested in
.<br> 2. Bacteria are prokaryotes.<br> What does this mean?
MariettaO [177]
Bacteria are classified as prokaryotes, along with another group of single-celled organisms, the archaea.
Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages. Most prokaryotes are small, single-celled organisms that have a relatively simple structure. no
5 0
2 years ago
Catalysts increase reaction rates by lowering the activation energy of a reaction.
Setler [38]
The answer is true, catalysts increase rates by lowering the activation energy of a reaction. Catalysts lower the reaction energy and so the reaction occurs faster. Enzymes perform the role of biological catalysts. Most metabolic pathways of the body are controlled by enzymes. Enzymes by classification are proteins. <span />
4 0
3 years ago
Read 2 more answers
Calculate the mass of 25,000 molecules of nitrogen gas. (1 mole = 6.02 x 1023 molecules)
Ainat [17]

Hey there!

Molar mass N2 = 28.01 g/mol

Therefore:

28.01 g N2 -------------- 6.02*10²² molecules N2

( mass N2 ?? ) ----------- 25,000 molecules N2

mass N2 =  ( 25,000 * 28.01 ) /  ( 6.02*10²³ )

mass N2 = 700250 / 6.02*10²³

mass N2 = 1.163*10⁻¹⁸ g


Hope that helps!

7 0
3 years ago
Read 2 more answers
Which two types of reactions are also always redox reactions? Explain your answer.
mina [271]
Single displacement and combustion reactions are ALWAYS redox.
7 0
3 years ago
Read 2 more answers
Last question, I promise!!!!!! ... :&gt;
VikaD [51]

Answer:

Which question?

Explanation:

3 0
4 years ago
Read 2 more answers
Other questions:
  • 35.0 mL of acid with an unknown concentration is titrated with 24.6 mL of 0.432 M base. What is the concentration of the acid? A
    15·1 answer
  • The proton,neutron and electrons in the atom of the element represented by the symbol 231Y89 are:
    14·1 answer
  • What’s the formula for copper (I) phosphate
    12·2 answers
  • Which of the following statements regarding isotopes is TRUE?
    8·1 answer
  • What is the degree of oxidation of a simple substance​
    11·2 answers
  • What are the materials made by chemists for use in washing clothes and cooking materials ​
    5·1 answer
  • Calculate the percentage of CL in AL(CLO3)3​
    12·1 answer
  • Cu^2+ + No2^-<br>what is the formula​
    15·1 answer
  • Explain in terms of atomic structure, why cesium has a lower first ionization energy than rubidium. Determine the family/group i
    10·1 answer
  • Convert 1.500 L to cm3. To the correct number of significant figures.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!