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
kifflom [539]
2 years ago
10

What is known about a reaction with a negative enthalpy?

Chemistry
1 answer:
Debora [2.8K]2 years ago
3 0

Answer:

B.the reaction is spontaneous

You might be interested in
A sample of a compound contains 160 g of oxygen and 20.2 g of hydrogen. Give the compound's empirical formula.
Maslowich
Amount of oxygen in the compound = 160 g
Amount of oxygen in the compound = 20.2 gm
Mole of oxygen in the compound = 160/16
                                                     = 10 moles
Mole of hydrogen in the compound = 20.2/1.01
                                                         = 20 moles
Then
The ratio of oxygen to ration of hydrogen = 1:2
So
The empirical formula of the compound is H2O. I hope the answer has come to your help.
3 0
3 years ago
Read 2 more answers
In reaction a, each sodium atom gives one electron to a chlorine atom in reaction be an isotope of oxygen decays to form an isot
aalyn [17]

Answer:

Exthermal heat, i think

Explanation:

6 0
3 years ago
AN atoms nucleus contains it's protons and electrons true or false
lesantik [10]
True, an atoms nucleus has both protons and electrons.
4 0
2 years ago
Convert 78.9 kJ into calories (can you also explain how pls, ty <3)
Elza [17]

Answer:

1 Joule=0.2390057361 Calorie

789kj=789×0.2390057361×1000

=188575.5257829calorie

Explanation:

Hope u have understand

3 0
2 years ago
1. What is the downward fores that acts on an airplane in flight?
Westkost [7]

Answer: D. gravity

Explanation:

An airplane in flight is acted on by four forces: lift, the upward acting force; gravity, the downward acting force; thrust, the forward acting force; and drag, the backward acting force (also called wind resistance).

4 0
2 years ago
Other questions:
  • Can you please find the answer key for this from internet?
    12·1 answer
  • What change would you expect on the rate of theSN2 reaction of 1-iodo-2-methylbutane withcyanide ion if the nucleophile concentr
    13·1 answer
  • A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the followi
    10·1 answer
  • True or false certain cations are associated with either exotermic or endothermic processes
    7·1 answer
  • Texas ranks __________ among the states in the amount of hazardous waste generated, carbon dioxide emissions, and toxic chemical
    9·1 answer
  • Solutions
    10·1 answer
  • When discussing the Arrhenius equation and chemical / enzyme kinetics, which of the following statements is incorrect ? A. A cat
    12·1 answer
  • Which of the following statements about atoms are true?
    15·1 answer
  • Atoms have a neutral charge because they?
    5·1 answer
  • What do you know about magnets?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!