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
maks197457 [2]
3 years ago
10

Work is performed on an object by raising it 2 m above the floor. Which of the

Chemistry
2 answers:
ss7ja [257]3 years ago
8 0
C) mechanical energy
devlian [24]3 years ago
3 0

Answer: Id say C

Explanation:

You might be interested in
After 1911, most scientists accepted the theory that nucleus of an atom was very dense and very small and has a positive charge.
Yanka [14]
After 1911 most scientists accepted<span> the </span>theory<span> that the </span>nucleus<span> of an </span>atom<span> was </span>very dense<span> and </span>very small<span> and </span>has<span> a </span>positive charge<span>. </span>
8 0
3 years ago
Which of the following reactions is spontaneous?
AveGali [126]
Answer is: <span>lumps os sugar dissolving in water.
Sugar has very good solubility in water and it dissolves readily, which is </span><span>example of a physical change.
</span>Gibbs free energy (G) determines if reaction will proceed spontaneously, if ΔG is negative, reaction is spontaneous <span>(ΔG = ΔH - T·ΔS).
</span>In other examples, reactions are spontaneous in reverse way, for example spontaneous is forming sodium chlorine from sodium metal and chlorine gas, but not sodium chloride forming sodium metal and chlorine gas, because a lot of energy is needed for that reaction.
5 0
3 years ago
Use the idea of diffuseition to explain how the smell of perfume travel​
pogonyaev
When perfume is sprayed in a room the particles of perfume diffuse with the particles in the air.
6 0
3 years ago
Consider the reaction at 500 ° C 500°C . N 2 ( g ) + 3 H 2 ( g ) − ⇀ ↽ − 2 NH 3 ( g ) K c = 0.061 N2(g)+3H2(g)↽−−⇀2NH3(g)Kc=0.06
Sav [38]

Answer:

Q = 0.061 = Kc

Explanation:

Step 1: Data given

Temperature = 500 °C

Kc=0.061

1.14 mol/L  N2

5.52 mol/L H2

3.42 mol/L NH3

Step 2: Calculate Q

Q=[products]/[reactants]=[NH3]²/ [N2][H2]³

If Qc=Kc then the reaction is at equilibrium.  

If Qc<Kc then the reaction will shift right to reach equilibrium.

If Qc>Kc then the reaction will shift left to reach equilibrium.  

Q = (3.42)² / (1.14 * 5.52³)

Q = 11.6964/191.744

Q = 0.061

Q = Kc the reaction is at equilibrium.  

4 0
3 years ago
Aluminium and potassium nitrate will not react when mixed together?
Stels [109]

Answer:

they would react to make aluminum oxide and nitrogen

Explanation:

hope this helps plz mark as brainliest

7 0
3 years ago
Read 2 more answers
Other questions:
  • Compare and contrast the different way heat moves
    10·1 answer
  • What does selectively permeable mean?
    5·1 answer
  • Need a little help with chemistry <br> *If you don’t know, don’t put anything*
    9·2 answers
  • The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% C, 6.35% H, and 55.83% Cl by mass.
    14·1 answer
  • What is sublimation and what type change is this?
    15·1 answer
  • The mole concept will most likely be used in
    13·1 answer
  • If I have 450 grams of iorn how many miles of it do I have
    11·1 answer
  • 2.How could you identify an element by its<br> number of protons?
    6·2 answers
  • 16. A sequence of star colors frorn hottest to coolest is
    9·1 answer
  • A 85.4 lb child has a Streptococcus infection. Amoxicillin is prescribed at a dosage of 45 mg per kg of body weight per day give
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!