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
NeX [460]
3 years ago
13

A substance that speeds up the rate of a chemical reaction is called

Chemistry
2 answers:
NeTakaya3 years ago
8 0
I'm not going toblie I'm stuck with A and B. But to me my gut says A
Nostrana [21]3 years ago
6 0
A substance that speeds up the rate of a chemical reaction is called a catalyst. As a catalyst speeds up the reaction, as an enzyme does. <span />
You might be interested in
Examine the given reaction. NH4NO3(s) → NH4+(aq) + NO3–(aq) ΔH° = 25.45 kJ/mol ΔS° = 108.7 J/mol·K Which of the given is correct
kobusy [5.1K]

Answer:

B)−6,942 J /mol

Explanation:

At constant temperature and pressure, you cand define the change in Gibbs free energy, ΔG, as:

ΔG = ΔH - TΔS

Where ΔH is enthalpy, T absolute temperature and ΔS change in entropy.

Replacing (25°C = 273 + 25 = 298K; 25.45kJ/mol = 25450J/mol):

ΔG = ΔH - TΔS

ΔG = 25450J/mol - 298K×108.7J/molK

ΔG = -6942.6J/mol

Right solution is:

<h3>B)−6,942 J /mol</h3>

8 0
3 years ago
A sample of sugar (C12H22O11) contains
Lady_Fox [76]

4 moles of sugar.

Explanation:

A mole is defined as the amount of a substance contained in Avogadro's number of particles 6.02 x 10²³.

    1 mole of substance  = 6.02 x 10²³. molecules

Given that;

  the sample of sugar contains 1.505 x 10²³.molecules

  The number of moles in this amount of sugar is 4 moles

Learn more:

Number of moles brainly.com/question/13064292

#learnwithBrainly

5 0
3 years ago
Which of the following presidential candidates was nominated by self-announcement?
MAXImum [283]
It was former President Woodrow Wilson who was nominated by self-announcement and he become the president of the United States of America in the year 1913 up to the year 1921. He was the 28th president of the United States and he runs on the presidential election year 1912 and won the presidential title. He served the country for 9 years. Former President Woodrow Wilson was born is Virginia, US in 1856 and he died on the year 1924 at the age of 67.
8 0
3 years ago
At about what age does basal metabolic rate begin to gradually decrease?
natulia [17]
This would decrease by 25 hope this helps !!
6 0
3 years ago
Read 2 more answers
2. What is the name of the compound AIPO?
Andru [333]

Answer:

Aluminum phosphate

Explanation:

7 0
2 years ago
Other questions:
  • Which of the following is an example of incomplete dominance?
    11·1 answer
  • How many moles of oxygen are produced when 2 mol of potassium chlorate (KClO3) decompose
    12·1 answer
  • Which statement describes the transfer of heat energy that occurs when an ice cube is added to an insulated container with 100 m
    7·1 answer
  • Why do we slant the graduated cylinder before dropping the metal cylinder into it?
    14·1 answer
  • What mass of solid that has a molar mass 89.0 g/mol should be added to 100.0 g of benzene to raise the boiling point of benzene
    11·1 answer
  • Which statement about covalent bonds and electrons is true?
    9·2 answers
  • The wavelength of transmission is 9.7mm. What is the energy of this transition
    10·1 answer
  • HELP PLEASE Which type of power generation can produce carbon dioxide? solar hydroelectric coal wind
    6·2 answers
  • Please help. Thank you:)
    15·1 answer
  • Which option correctly describes the relative charges and masses of the subatomic particles?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!