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
geniusboy [140]
2 years ago
11

A student is standing with their back facing a campfire. The student notices that their back is much warmer than their chest. Th

ey know that thermal energy is being transferred from the fire and that this method of energy transfer can happen even if no air is present.
This method of energy transfer is —



convection

condensation

conduction

radiation
Chemistry
2 answers:
fiasKO [112]2 years ago
8 0
Conduction because it transfers thermal energy
Mandarinka [93]2 years ago
3 0

Answer:Conduction occurs when energy is passed between objects. The transfer of thermal energy is called heat. Particles of matter are in constant motion.

Explanation:

You might be interested in
what elements would you expect to lose electrons in chemical changes? Potassium, sulfur, fluorine, barium or copper.
Hatshy [7]
Potassium, Barium, and Copper because they are metals, and most metals tend to lose electrons when forming an ion.
8 0
3 years ago
Read 2 more answers
The energy needed to destabilize existing chemical bonds and start a chemical reaction is called ____.
postnew [5]
<span>If all chemical reactions that release free energy tend to occur spontaneously,why haven't all such reactions already occurred? One reason is that most reactions require an input of energy to get started.Before it is possible to form new chemical bonds,even bonds that contain less energy,it is first necessary to break the existing bonds,and that takes energy.The extra energy required to destabilize existing chemical bonds and initiate a chemical reaction is called activation energy.</span>
3 0
3 years ago
How many grams of sodium benzoate, C H CO Na, have to be added to 1.50 L of a 0.0200 M solution of benzoic acid, C H CO H, to ma
Dmitrij [34]

Answer: 2.8275grams

Explanation: A buffer is made btw a weak acid and it salt. In a solution made by dissolving a weak acid in solution, equilibrium is set up btw ionised and unionised ion. For Benzoic acid

C6H5COOH....> C6H5COO- + H+

Ka = [C6H5COO-] [H+]/ [C6H5COOH].......(1)

using Ka = 6.5× 10^-5, [C6H5COOH] = 0.02M. PH= - log[H+] ....> [H+]= 10^-4M.

Putting the values in(1)

[C6H5COO-]= 6.5× 10^-5 × 0.02/ 10^-4

[C6H5COO-] = 0.013M = Molarity of sodium benzoate

Mole(C6H5COONa) = 0.013 × Volume = 0.013mol/litre × 1.5 litre

Mole(C6H5COONa) = 0.0195mol

Mass(C6H5COONa) = 0.0195 × Molar mass

Mass(C6H5COONa) = 2.8275g

4 0
3 years ago
True or false in a chemical reaction some of the atoms will be changed into different type of atoms​
Anika [276]

Answer:

It's false

Explanation:

7 0
2 years ago
Which two factors affect the amount of thermal energy an object has?
Neporo4naja [7]

Answer:

Explanation:

What would the answer be?

6 0
3 years ago
Other questions:
  • The force of gravity pulls all objects downwards." which of these statements is correct about the law of science?
    9·1 answer
  • What most likely happens when water vapor cools? A. It changes into gas. B. It changes into liquid. C. Its temperature increases
    5·2 answers
  • You are writing a safety contract for your class. List 10 things you would include in the contract?
    14·2 answers
  • Choose the statement below that is TRUE?
    5·1 answer
  • Chemistry help asap please :(
    9·1 answer
  • What is the chemical composition of acid rain?
    12·1 answer
  • 1. What is the main difference between a nuclear power plant and a coal burning power plant?
    7·1 answer
  • Which of the following is a way your body fights a bacterial infection? Fever Shivers Sweats Increased heart rate
    8·2 answers
  • 1. What is the purpose of the advertisement?​
    6·2 answers
  • 2. The term for a reaction where two solutions are mixed and an insoluble substance forms is called a _____ reaction.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!