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
yarga [219]
2 years ago
13

A potential energy diagram is shown.

Chemistry
1 answer:
Vesna [10]2 years ago
5 0

Answer:

25kJ

Explanation:

Given the initial energy to be 30kJ

The energy change from the initial energy to the peak energy = (65-30) kJ

= 35kJ

since the second energy change was a drop in energy it is regarded negative

= (55-65)

= -10kJ

Therefore total energy change

= (35-10)kJ

= 25kJ

You might be interested in
g A mass spectrum. The peak at mass 100 has a 8% relative abundance. THe peak with mass 85 has a 40% abundance. The peak at 71 h
Sati [7]

Answer:

The peak at mass 100 with a 8% relative abundance is the molecular ion peak

Explanation:

Molecular ion peak has the highest charge to mass ratio,

Mass of 100 is same as mass to charge ratio =100

8 0
3 years ago
A sample of gas at a pressure of 121.59 kPa, a volume of 31 L, and a temperature of 360 K contains how many moles of gas? A. 0.7
natali 33 [55]

Answer:

C. 1.3 mol

Explanation:

PV = nRT

where P is absolute pressure,

V is volume,

n is number of moles,

R is universal gas constant,

and T is absolute temperature.

Given:

P = 121.59 kPa

V = 31 L

T = 360 K

R = 8.3145 L kPa / mol / K

Find: n

n = PV / (RT)

n = (121.59 kPa × 31 L) / (8.3145 L kPa / mol / K × 360 K)

n = (3769.29 L kPa) / (2993.22 L kPa / mol)

n = 1.26 mol

Round to two significant figures, there are 1.3 moles of gas.

4 0
3 years ago
Identify the characteristics of tornadoes and hurricanes
Reil [10]
Identify the characteristics of tornadoes and hurricanes.

1)develops over warm ocean water 
heated by the Sun<span>travels relatively short distances before </span>
losing its energyequivalent of a typhoon<span>loses strength as it moves </span>
from water to land<span>common in the Plains states of </span>
the United Statesprocess begins when the ground
<span>is heated to high temperatures</span>
4 0
3 years ago
Read 2 more answers
How many molecules make up 8.41 moles of Ca2(SO3)?
sammy [17]

Answer:

<h3>5.06282 × 10²⁴ molecules</h3>

Explanation:

The number of molecules of Ca2(SO3) can be found by using the formula

<h3>N = n × L</h3>

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

N = 8.41 × 6.02 × 10²³

We have the final answer as

<h3>5.06282 × 10²⁴ molecules</h3>

Hope this helps you

3 0
3 years ago
HELPP ASAPP
Trava [24]

Answer:

The answer for the calculation is as follows

17.48373

3 0
3 years ago
Other questions:
  • How can toxicant absorption be reduced after exposure to the skin? How can absorption be reduced for orally consumed chemicals?
    12·1 answer
  • What are the properties of elements related to?
    6·2 answers
  • Which mineral test was used if a geologist refers to a mineral as metallic?
    11·2 answers
  • A temperature of 50°F is equal to °C.
    7·2 answers
  • A pan containing hot water is left on the counter and becomes cool mainly due to
    13·1 answer
  • Which of the following would make a solution?
    8·2 answers
  • What's the energy transformation take place in electric kettle? ​
    8·1 answer
  • Lmfjwkwmwmwmamammanwnwnebebs. sss<br>sms<br>ask
    12·1 answer
  • What important material is absorbed by your digestive system besides water
    12·2 answers
  • Which of the following converts mechanical energy to electrical energy?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!