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
stepladder [879]
3 years ago
14

A certain first-order reaction has a half-life of 25.2 s at 20°C. What is the value of the rate constant k at 60°C if the activa

tion energy, Ea=80 kJ mol-1?
Chemistry
1 answer:
olasank [31]3 years ago
3 0

Answer:

hi

Explanation:

You might be interested in
Explain how the cell works. Include the oxidation and reduction half-reactions in your explanation.
Mariana [72]
<span>Oxidation is the loss of electrons and corresponds to an increase in oxidation state. The reduction is the gain of electrons and corresponds to a decrease in oxidation state. Balancing redox reactions can be more complicated than balancing other types of reactions because both the mass and charge must be balanced. Redox reactions occurring in aqueous solutions can be balanced by using a special procedure called the half-reaction method of balancing. In this procedure, the overall equation is broken down into two half-reactions: one for oxidation and the other for reduction. The half-reactions are balanced individually and then added together so that the number of electrons generated in the oxidation half-reaction is the same as the number of electrons consumed in the reduction half-reaction.</span>
6 0
3 years ago
It has been hypothesized that a chemical known as BW prevents colds. To test this hypothesis, 20,000 volunteers were divided int
Amiraneli [1.4K]

Grams of BW

i think thats irtu9rgirg

8 0
3 years ago
Zn+HCI = ZnCI2 + H2​
anygoal [31]
<h3>Answer:</h3>

#1. Type of reaction: Single displacement

#2. Balanced equation: Zn + 2HCI → ZnCI₂ + H₂

<h3>Explanation:</h3>

<u>We are given;</u>

  • The equation; Zn+HCI → ZnCI₂ + H₂

Assuming we are required to identify the type of reaction and balance it;​

  • The reaction is a <u>single displacement reaction.</u>
  • Zinc metal displaces hydrogen atom from hydrochloric acid to form a salt, zinc chloride and hydrogen gas.
  • To balance the equation, we put coefficients on the reactants and products for the number of atoms of each element to be equal on both sides of the equation.
  • In this case, the appropriate coefficients are 1, 2, 1 and 1
  • Therefore, the balanced equation will be;

Zn + 2HCI → ZnCI₂ + H₂

4 0
3 years ago
Please help will give brainliest to best answer
Stolb23 [73]

Answer:

A student wrapped in a blanket or siting in the hot sun or showering with hot water

Explanation:

7 0
3 years ago
Read 2 more answers
type of environmental factors such as the presence of a hormone that might affect an organism's phenotype is __________​
rosijanka [135]

about the door is locked and I think I have a few questions about the door is locked and I think I have

Explanation:

can you tell me what the door is locked and I think I have a few questions about the door is locked and I think I have a few questions

7 0
3 years ago
Other questions:
  • n acid with a pKa of 8.0 is present in a solution with a pH of 6.0. What is the ratio of the protonated to the deprotonated form
    9·1 answer
  • What is the purpose of graphics in scientific articles
    15·1 answer
  • How many formula units make up 19.0 g of magnesium chloride?
    12·1 answer
  • Water is boiled in a flask with a balloon over the top of the water gets the balloon expand what has happened to the weight of t
    12·1 answer
  • An atom contains one proton, one electron, and one neutron. Which two particles are most similar in mass?
    8·2 answers
  • 26 Classify each chemical equation as a combination/synthesis, decomposition, single replacement, double replacement, or combust
    5·2 answers
  • The light and dark circles in the picture represent different types of atoms. Which picture best represents a pure compound?
    14·1 answer
  • How many atoms are in 162.0 g of magnesium? ​
    14·1 answer
  • Balance the following chemical equation by providing the correct coefficients fe+h2so4 fe(so4)3 + h2
    13·1 answer
  • How many moles of MgCl₂ are present in 60.0 mL of 0.100 M MgCl₂ solution?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!