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
Aliun [14]
2 years ago
13

A)

Chemistry
1 answer:
jeka57 [31]2 years ago
4 0

Answer:

Explanation:

a )

From the graph given , energy of reactant = 0

b )

energy of product = -15 kJ

c )

ΔH =   energy of product - energy of reactant

= -15 - 0  = - 15 kJ

ΔH is negative  so reaction is exothermic .

d ) Activation energy = 25 - 0 = 25 kJ .

e ) Energy released = 15 kJ .

You might be interested in
Which mixture can be separated based on differences in the particle size of the components?
Rina8888 [55]

Answer: Mixtures you can separate are like cereal and milk. Hope that helps

Explanation:  Filteration is required to separate a mixture.

So heterogeneous mixures (that contain substances with different particle sizes)  can be separated with a filter.  

Homogeneous mixtures are uniform in composition so they will not be able to be separated.

5 0
3 years ago
How is an alkoxide ion formed??
ahrayia [7]
An alkoxide is an organic functional group formed when a hydrogen atom is removed from a hydroxyl group of alcohol when reacted with a metal. It is the conjugate base of alcoho.
5 0
3 years ago
Read 2 more answers
What processes would cause increased abrasion along the coastal region? Explain.
Andreas93 [3]
If you are talking about at the beaches waves would cause increased abrasion because the force of a wave hitting a rock or something else will slowly cause the object to wear away. Also strong winds could cause increased abrasion because the wind could pick up small sand particles that will slowly erode the thing it hits.
4 0
3 years ago
Which device involves the use of plasma in technology
Bas_tet [7]

Plasma if fourth phase of matter

Plasma technique is used where fire is used

So the correct answer is arc welder

4 0
3 years ago
Read 2 more answers
A chemist measures the amount of bromine liquid produced during an experiment. She finds that 496g of bromine liquid is produced
vfiekz [6]

Answer:

6.208 mol

Explanation:

Mass of Bromine Liquid = 496g

Number of moles = ?

Relationship between number of moles and mass is given as;

Number of moles = Mass / Molar mass

Molar mass of Bromine = 79.9g

Number of moles = 496 / 79.9 = 6.208 mol

3 0
2 years ago
Other questions:
  • What is the Lewis Structure for silane?
    9·2 answers
  • When an excited electron in an atom moves to the ground state, the electron
    13·2 answers
  • Write a balanced net ionic equation for the following reaction. BaCI2(aq)+H2SO4(aq) -> BaSO4(s)+HCI (aq)
    7·2 answers
  • On reaction with acidified potassium dichromate(VII), two of the isomers are oxidized in two steps to produce different products
    11·1 answer
  • True or False? Limiting cultivation increases compaction.
    6·1 answer
  • What is the chemistry principle for silly putty and candle
    15·1 answer
  • 15<br> Question 56 (1 point)<br> What is the name of the compound with the chemical formula SnSnO3?
    8·1 answer
  • The reader can infer from the article that __________.
    11·1 answer
  • A tool might be made of an alloy because the alloy _____.
    12·2 answers
  • What is the molecular formula for heptachlorine hexoxide
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!