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
vaieri [72.5K]
2 years ago
9

PLEASE HELP!!!! The energy diagram shows the change in energy during a chemical reaction. Which statement best describes the tot

al energy change of the system?
(IMAGE PROVIDED)

Chemistry
2 answers:
eimsori [14]2 years ago
6 0

Answer: B

Explanation:

melamori03 [73]2 years ago
5 0

Answer:

A

Explanation:

You might be interested in
A hydrate of zinc nitrate has the formula Zn(NO3)2 . xH2O. If the mass of 1 mol of anhydrous zinc nitrate is 63.67% of the mass
weqwewe [10]

MM Zn(NO₃)₂ = 189.36 g/mol

mass 1 mol Zn(NO₃)₂ = 189.36 g

mass hydrate = 100 / 63.67 x 189.36 = 297.409 g

mass 1 mol hydrate = 297.409 g

MM hydrate = 297.409 g/mol

MM hydrate = MM Zn(NO₃)₂ + MM xH₂O

297.409 = 189.36 + x(18)

x = 6

6 0
2 years ago
A chemistry student was asked to calculate the number of moles of iron required to react with 1.20 mol of oxygen to produce iron
nikitadnepr [17]
I’m on the same one smh
6 0
3 years ago
Does the energy go from the surrounding to the chemicals or from the chemicals to the surround in an exothermic reaction?
Karo-lina-s [1.5K]
In general terms, exothermic reactions release energy, so the energy goes from the system to the surroundings.
4 0
3 years ago
Which of these is an example of mechanical energy transforming into heat energy?
elixir [45]

Answer:

d

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following elements would you expect to be ductile and
aksik [14]

Answer:

ductile - germanium

mellabe - zirconium

8 0
3 years ago
Other questions:
  • What is the molarity of a solution containing 56 grams of solute in 959 mL of solution?
    15·1 answer
  • 100 points bc why not :P Which statement best describes heating by radiation?
    7·1 answer
  • Wer the following questio What is meant by a solutio What is a saturated solutio Define: give an example.
    6·1 answer
  • 2. What is the relationship between mutation, natural selection and adaptation?
    11·1 answer
  • A red hot iron bar is dipped into 600 ml of water ( 600.g of water) which causes
    9·1 answer
  • A Chemical Reactions Takes Place When
    6·2 answers
  • Eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    14·1 answer
  • Which term goes hand in hand with biodiversity?
    11·1 answer
  • Drag each label to the correct location.
    5·1 answer
  • what safety rule does not apply to the organic chemistry laboratory? no eating, drinking, or smoking in the laboratory. wear pro
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!