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
andrezito [222]
3 years ago
8

A student conducting a calorimetry investigation determines a negative ∆H. What does the negative value indicate about the react

ion?
Chemistry
1 answer:
natita [175]3 years ago
8 0

Answer : The negative value indicate about the reaction is exothermic and heat is released.

Explanation :

Enthalpy of a reaction (ΔH): It is defined as the energy change that takes place during the chemical processes. It is represented as, ΔH.

If the heat is absorbed during the chemical process then the enthalpy of reaction is positive.

If the heat is released during the chemical process then the enthalpy of reaction is negative.

That means,

When the value of enthalpy of reaction is negative then the heat is released and the reaction will be exothermic reaction.

When the value of enthalpy of reaction is positive then the heat is absorbed and the reaction will be endothermic reaction.

You might be interested in
How many grams of al2br6 can be produced from 1278.4 g of br2 and 107.9g of al?
UNO [17]
It’s how many times deez nuz go into that puh
6 0
3 years ago
What is the mass of 2M H2SO4 in a 50ml of solution ​
Cloud [144]

Answer:

It is given in the question that molarity of the sulphuric acid is 2M, the volume of the sulphuric acid is 20 mL, the volume of the solution is 1`L.

8 0
3 years ago
How does the greenhouse effect relate to the theme of stability and change
Nadya [2.5K]
The greenhouse effect increases the temperature of the Earth by trapping heat in our atmosphere. This keeps the temperature of the Earth higher than it would be if direct heating by the Sun was the only source of warming.
When the sunlight reaches the surface of the Earth, some of it is absorbed which warms the ground and some bounces back to space as heat. Greenhouse gases that are in the atmosphere absorb and then redirect some of this heat back towards the Earth.
8 0
3 years ago
True or False? You should change the subscripts to balance chemical equations.
Kitty [74]
False subscripts cannot be changed to balance chemical equations
3 0
3 years ago
What do I scan to confirm that a book is relevant and valuable as a source
Elden [556K]
It's genre. Look for something either on a final or starting page near the cover, and check to look if it's non fiction, or anything else that could prove it as reliable.
7 0
3 years ago
Other questions:
  • Element X is found in two forms: 90.0% is an isotope that has a mass of 20.0, and 10.0% is an isotope that has a mass of 22.0. W
    9·1 answer
  • Please anwser it will rate and will give brainly if. 2 people anwser it
    14·1 answer
  • How does a scientist explain something when a controlled experiment cannot be carried out
    6·1 answer
  • What is the physical state of each of these materials at room temperature
    15·2 answers
  • The nitrogen atoms in N2 participate in multiple bonding whereas those in hydrazine, N2H4, do not. a.) Draw Lewis structures for
    8·1 answer
  • Choose all answers that apply
    10·2 answers
  • Help quick
    7·1 answer
  • What organ can be found in a plant cell but not in its animal cell​
    9·1 answer
  • Which of the following pH values represents a strong acid?<br><br> 1<br> 8<br> 13<br> 7
    14·2 answers
  • What can be said about an exothermic reaction with a negative entropy change?.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!