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
Elanso [62]
4 years ago
11

A chemical reaction has a ΔH of -2764 Kj. This indicates that the chemical reaction that took place was

Chemistry
2 answers:
Ket [755]4 years ago
7 0

Answer:

Explanation:

answer was A ENDOTHERMIC

grandymaker [24]4 years ago
4 0
Hello!

The reaction that took place was B) exothermic. 

The equation for the ΔH is 

\Delta H= H products - H reagents

To know if this reaction is exothermic or endothermic we will need to look at the sign of the ΔH. If it is positive, it means that enthalpy of the products is higher than the enthalpy of the reagents and the reaction is endothermic.

If the sign is negative, it means that the enthalpy of the products is lower than the enthalpy of the reagents and the reaction is exothermic. In this case, the sign is negative, so the reaction is exothermic.

Have a nice day!
You might be interested in
What is the molar mass of cholesterol if 0.00105 mol weighs 0.406 g?
goblinko [34]
<h3>Answer: 386.67 g/mol </h3>

Explanation:

Molar Mass = Mass ÷ Mole

                   =  0.406 g ÷ 0.00105 mol

                   =  386.67 g/mol

∴ molar mass of cholesterol = 386.67 g/mol

5 0
3 years ago
Perform the following calculations to the correct number of significant figures.
SSSSS [86.1K]
Answer: 460.624

Explanation:
1. Multiply the numbers
(24.5260 x 2.56) + 397.84
= (62.784) + 397.84

2. Add the numbers
(62.784) + 397.84
= 460.624
4 0
2 years ago
Which type of bond is present in hydrogen sulfide (H2S)? The table of electronegativities is given.
Paraphin [41]

nonpolar covalent bond (with LD force)

6 0
3 years ago
HELPPP
Ksivusya [100]
3 I’m pretty sure maybe
4 0
3 years ago
Which of the following pairs of substances form a buffer system for human blood?
ss7ja [257]

Answer:

d. Because those chemicals are easily made when CO2 reacts with water, forming H2CO3 (via carbonic anhydrase

3 0
3 years ago
Other questions:
  • Which solution is the most concentrated?
    6·1 answer
  • How do I convert 12 g into kg in a formula
    8·1 answer
  • What happens to the rate of reaction when you decrease the temperature of a chemical reaction?
    9·2 answers
  • 5. Found only in plant cells, I'm as green as can be! I make food for the plant from the sun's
    13·1 answer
  • Pls give me three examples of stimuli that will make you run fast
    9·2 answers
  • How is a solute and a solvent different<br>​
    7·2 answers
  • Método científico: El trabajo científico se caracteriza por ser planificado, con objetivos iniciales y que habitualmente se dan
    8·1 answer
  • consider an atom having four distinct neergy levels. if an electron is able to make transitions between, any two levels, how man
    10·1 answer
  • Argue whether this chemical reaction supports or does not support the Law of Conservation of Matter.
    10·1 answer
  • Which of the following represents the electron configuration of s⁻?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!