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
Ghella [55]
3 years ago
7

Wh

Chemistry
2 answers:
Vladimir [108]3 years ago
7 0

Answer: Option (3) is the correct answer.

Explanation:

When chemical energy is converted into thermal energy then energy between the chemical bonds releases. Due to this energy release, the surrounding molecules move faster.

As a result, there will be increase in the thermal energy of molecules of the substance.

For example, chemical energy releases when coal is burned and water over it changes into steam.

Thus, we can conclude that only the amount of thermal energy changes when chemical energy is converted into  thermal energy.


sergey [27]3 years ago
5 0

The correct option would be 3.

Only thermal energy changes


Hope this helps you

Brainliest would be appreciated

-AaronWiseIsBae

You might be interested in
Which of the following is a synthesis reaction? 2Na + 2H 2O 2NaOH + H 2 2S + 3O 2 2SO 3 2H 2O 2 2H 2O + O 2 CaCl 2 + F 2 CaF 2 +
storchak [24]

Answer:

2S + 3O 2 --->2SO 3 synthesis

Explanation:

2Na + 2H 2O -->2NaOH + H 2 single replacement

2S + 3O 2 --->2SO 3 synthesis

2H 2O 2 --->2H 2O + O 2 decomposition

CaCl 2 + F 2 ---> CaF 2 + Cl 2 single replacement

4 0
3 years ago
A student does an experiment to determine the molar solubility of lead(II) bromide. She constructs a voltaic cell at 298 K consi
attashe74 [19]

Answer:

The molar solubility of lead bromide at 298K is 0.010 mol/L.

Explanation:

In order to solve this problem, we need to use the Nernst Equaiton:

E = E^{o} - \frac{0.0591}{n} log\frac{[ox]}{[red]}

E is the cell potential at a certain instant, E⁰ is the cell potential, n is the number of electrons involved in the redox reaction, [ox] is the concentration of the oxidated specie and [red] is the concentration of the reduced specie.

At equilibrium, E = 0, therefore:

E^{o}  = \frac{0.0591}{n} log \frac{[ox]}{[red]} \\\\log \frac{[ox]}{[red]} = \frac{nE^{o} }{0.0591} \\\\log[red] =  log[ox] -  \frac{nE^{o} }{0.0591}\\\\[red] = 10^{ log[ox] -  \frac{nE^{o} }{0.0591}} \\\\[red] = 10^{ log0.733 -  \frac{2x5.45x10^{-2}  }{0.0591}}\\\\

[red] = 0.010 M

The reduction will happen in the anode, therefore, the concentration of the reduced specie is equivalent to the molar solubility of lead bromide.

7 0
3 years ago
A 3.00-L flask is filled with gaseous ammonia, NH3. The gas pressure measured at 27.0 ∘C is 2.55 atm . Assuming ideal gas behavi
Whitepunk [10]

Answer : The mass of ammonia present in the flask in three significant figures are, 5.28 grams.

Solution :

Using ideal gas equation,

PV=nRT\\\\PV=\frac{w}{M}\times RT

where,

n = number of moles of gas

w = mass of ammonia gas  = ?

P = pressure of the ammonia gas = 2.55 atm

T = temperature of the ammonia gas = 27^oC=273+27=300K

M = molar mass of ammonia gas = 17 g/mole

R = gas constant = 0.0821 L.atm/mole.K

V = volume of ammonia gas = 3.00 L

Now put all the given values in the above equation, we get the mass of ammonia gas.

(2.55atm)\times (3.00L)=\frac{w}{17g/mole}\times (0.0821L.atm/mole.K)\times (300K)

w=5.28g

Therefore, the mass of ammonia present in the flask in three significant figures are, 5.28 grams.

8 0
4 years ago
A scientific law is ___.
Daniel [21]

Answer: a rule that describes a pattern in nature.

Explanation:

3 0
2 years ago
What are eight elements named after towns
maxonik [38]
1. Berkelium(Berkeley, CA) 2. Dubnium(Dubna, Russia) 3. Darmstaditum (Darmstadt, Germany) 4. Erbium(Ytterby, Sweden) 5. Strontium(Strontian, Scotland) 6. Terbium(Ytterby, Sweden) 7. Yttebium(Ytterby, Sweden) 8. Yttrium(Ytterby, Sweden)
5 0
3 years ago
Other questions:
  • Do viruses have cell walls?
    8·1 answer
  • Which is an aspect of the kinetic-molecular theory and can be used to explain the compressibility of plasmas?
    7·2 answers
  • A thermometer reads a temperature to be 38.0 °C. What is the temperature in
    10·1 answer
  • Dominic made the table below to organize his notes about mixtures,
    12·1 answer
  • 3
    5·1 answer
  • Chooses the name of the cellular process that match the organelle shown
    12·1 answer
  • Help me answer these questions
    11·2 answers
  • Help meeee I don’t understand
    5·2 answers
  • Helllppp<br> Name the ions formed by the following elements (sodium - iodine)
    13·1 answer
  • Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high temperatures. If 18.1 g of Nh3 is r
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!