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
Katen [24]
3 years ago
13

How is heat energy transferred if it has direct contact between a warm object and a cold object?

Chemistry
1 answer:
zhuklara [117]3 years ago
6 0
The answer is c ur welcome
You might be interested in
Which of the following measurements is expressed to four significant figures?
yarga [219]
The correct answer isA
8 0
3 years ago
Read 2 more answers
How many atoms are in 9.008 mol of Carbon? 0.7500 atoms 1.332 atoms 5.423 x 10^24 atoms 1.496 x 10^ -23 atoms
Zanzabum

 The number  of atoms that are  in 9.008   moles of carbon is

5.423 x 10^24 atoms


<u><em>calculation</em></u>

The  number of atoms is calculated using the Avogadro's   constant

That is   According to  Avogadro's   1  moles  = 6.02 x 10^23  atoms

                                                         9.008  moles= ? atoms

by cross multiplication

= [(9.008  moles x 6.02 x 10^23 atoms)  / 1  mole] = 5.423 x10^24 atoms

8 0
3 years ago
The reaction a(g)⇌2b(g) has an equilibrium constant of k = 0.030. what is the equilibrium constant for the reaction b(g)⇌12a(g)?
aalyn [17]
First, we have to correct the equation in the question to b(g)⇆ 1/2 A(g)
at the first equation A(g)⇆ 2 B(g) so,
 Kc = [B]^2 [ A] = 0.03 

by reverse the equation 2B⇆ A 
∴ Kc(original) = [A] / [B]^2

        = 1/0.03 = 33 M^-1

and the new equation B⇆ (1/2) A 
So, the new Kc = √Kc(original = √33 
                ∴    KC  = 5.7
7 0
4 years ago
Read 2 more answers
When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?
bekas [8.4K]
D. 2- youre adding two negative charges to a neutral element
5 0
3 years ago
( please help !!!! )
Yanka [14]

It avoids confusion through scientists. If you think, they could be practicing or studying in varying countries and something uniform for science avoids all confusion!

8 0
3 years ago
Other questions:
  • Ammonia (NH3) can be produced by the reaction of hydrogen gas with nitrogen gas:
    13·2 answers
  • 0.74 mol = ___ atoms<br><br>fill in the blank
    5·1 answer
  • Pure gold is defined as having 24 carats. When mixed in an alloy, the carats of gold are given as a percentage of this value. Fo
    12·1 answer
  • If an atom gains an electron, what overall charge will it have?
    11·2 answers
  • Which is a spectator ion in the reaction between Na2CO3(aq) and HNO3(aq)?
    11·2 answers
  • Assuming that the smallest measurable wavelength in an experiment is 0.650 fm (femtometers), what is the maximum mass of an obje
    13·1 answer
  • Can you please help me with this question ​
    7·1 answer
  • Four difference between electrolytic cell and electrochemical cell​
    9·1 answer
  • Can someone pleasee help me with this asap!! Im struggling
    10·1 answer
  • Two blocks of platinum have a temperature of 200 Celsius one block has a mass of 10g the other block has a mass of 100g do the b
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!