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
hoa [83]
3 years ago
14

PLZ HELP

Chemistry
1 answer:
Vikki [24]3 years ago
3 0

B) both scientists could be right.

You might be interested in
# of protons = 48 <br><br> Cadmium <br> Titanium <br> Oxygen <br> Krypton
Dafna11 [192]

Answer:

Cadmium +p= 48

Titanium p=22

Oxygen p=8

Krypton p=36

So the answer is Cadmium which has #48 protons

Explanation:

7 0
3 years ago
g A gas is compressed in a cylinder from a volume of 20.0 L to 2.0 L by a constant pressure of 10.0 atm. Calculate the amount of
Lemur [1.5K]

Answer:

The amount of work done on the system is 18234 J and the final positive sign means that this work corresponds to an increase in internal energy of the gas.

Explanation:

Thermodynamic work is called the transfer of energy between the system and the environment by methods that do not depend on the difference in temperatures between the two. When a system is compressed or expanded, a thermodynamic work is produced which is called pressure-volume work (p - v).

The pressure-volume work done by a system that compresses or expands at constant pressure is given by the expression:

W system= -p*∆V

Where:

  • W system: Work exchanged by the system with the environment. Its unit of measure in the International System is the joule (J)
  • p: Pressure. Its unit of measurement in the International System is the pascal (Pa)
  • ∆V: Volume variation (∆V = Vf - Vi). Its unit of measurement in the International System is cubic meter (m³)

In this case:

  • p= 10 atm= 1.013*10⁶ Pa (being 1 atm= 101325 Pa)
  • ΔV= 2 L- 20 L= -18 L= -0.018 m³ (being 1 L=0.001 m³)

Replacing:

W system= -1.013*10⁶ Pa* (-0.018 m³)

Solving:

W system= 18234 J

<u><em>The amount of work done on the system is 18234 J and the final positive sign means that this work corresponds to an increase in internal energy of the gas.</em></u>

5 0
3 years ago
1. A mixture of 3 gases (A, B, and C) has a total pressure of 240kPa. If the partial pressure of
Gala2k [10]

Answer:

78 kPa

Explanation:

The total pressure is the sum of the partial pressures:

240 = Pa + Pb + Pc

240 = 107 + 55 + Pc

Pc = 78 kPa

5 0
3 years ago
Read 2 more answers
What is the mass in grams of a 8.4 mole sample of iron?
wlad13 [49]
8.4 moles equals 469.14g Fe
5 0
3 years ago
Read 2 more answers
Moving glaciers can cause erosion ?<br><br> True or false <br> Plz explain
sertanlavr [38]
Glaciers cause erosion in two main ways: plucking and abrasion. Plucking is caused when sediments are picked up by a glacier. They freeze to the bottom of the glacier and are carried away by the flowing ice. ... The rocks and sediment grind away as the glacier moves
5 0
3 years ago
Read 2 more answers
Other questions:
  • Is the water density higher than the aluminum density
    10·1 answer
  • Which term labels a solution
    12·1 answer
  • The founder of Islam was _____. Abbas ibn Abd al-Muttalib Muhammad Abu Bakr Khosrau
    12·2 answers
  • Is the formation of a hydrate a physical or chemical process
    6·2 answers
  • The density of copper is 8.96g/mL. The mass of 7.00 of copper is
    5·1 answer
  • Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. She doesn't like drinks th
    15·2 answers
  • How do the circulatory, respiratory, or digestive systems work together?
    5·1 answer
  • How many moles of CO are present in 35.88 L of the gas?
    8·1 answer
  • In order to study our genes, scientists must extract the DNA from human tissue. Would you expect the method of DNA extraction we
    15·1 answer
  • Hello! help me please and thanks
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!