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
AleksAgata [21]
3 years ago
14

5 Uses of elements or its Compounds: Oxygen

Chemistry
1 answer:
melisa1 [442]3 years ago
4 0

fresh air for breathing

ability to sustane life

treat peoples breathing problem

energy in automobiles

industriel procces


You might be interested in
H 2 O, CO 2 , and C 12 H 22 O 11 are all examples of chemical _____.
Reil [10]
They are all examples of chemical formulas
6 0
3 years ago
Read 2 more answers
How many moles are in 19.82 g Mg?
vekshin1
I think it’s 24.305? Not sure
4 0
3 years ago
What volume would a 0. 250 mole sample of h2 gas occupy if it had a which a a pressure of 1. 70 atm and a temperature of 35 C?
frosja888 [35]

The volume of  0. 250 mole sample of H_{2} gas occupy if it had a pressure of 1. 70 atm and a temperature of 35 °C is  3.71 L.

Calculation,

According to ideal gas equation which is known as ideal gas law,

PV =n RT

  • P is the pressure of the hydrogen gas  = 1.7 atm
  • Vis the volume of the hydrogen gas = ?
  • n is the number of the hydrogen gas = 0.25 mole
  • R is the universal gas constant = 0.082 atm L/mole K
  • T is the temperature of the sample = 35°C = 35 + 273 = 308 K

By putting all the values of the given data like pressure temperature universal gas constant and number of moles in equation (i) we get ,

1.7 atm×V = 0.25 mole ×0.082 × 208 K

V = 0.25 mole ×0.082atm L /mole K × 308 K /1.7 atm

V = 3.71 L

So, volume of the sample of the hydrogen gas occupy is  3.71 L.

learn more about ideal gas equation

brainly.com/question/4147359

#SPJ4

4 0
2 years ago
Radioactive americium-241 is used in household smoke detectors and in bone mineral analysis.
Varvara68 [4.7K]

Answer:

Electrons- 95

Protons- 95

Neutrons-146

Explanation:

An atoms is made up of three fundamental particles; electrons, protons and neutrons,

Americium belongs to the f block in the periodic table. It is an actinide element.

An atom of Am-241 contains 95 protons, 95 electrons and 146 neutrons.

4 0
3 years ago
The sphere is the layer of the earth that contains a mixture of gases
jasenka [17]
Omoze layer I know this

6 0
4 years ago
Read 2 more answers
Other questions:
  • What type of bonds hold metal atoms together
    12·1 answer
  • Which type of intermolecular attractive force operates between (part
    9·1 answer
  • How many atoms of carbon (C,12.01 g/mol) are in a diamond with a mass of 0.568 g?
    8·1 answer
  • Which of these is an example of mechanical energy transforming into heat energy?
    5·2 answers
  • In a coffee‑cup calorimeter, 65.0 mL of 0.890 M H 2 SO 4 was added to 65.0 mL of 0.260 M NaOH . The reaction caused the temperat
    14·1 answer
  • How is the partial pressure of a gas in a mixture calculated?
    15·1 answer
  • 12. Contrast the movement of charges in a
    9·1 answer
  • Which of these elements has two valence electrons? A.hydrogen B.barium C.nitrogen D.krypton E.bromine
    8·1 answer
  • Evidence for past events in Earth's ancient history are provided by:
    6·1 answer
  • Which TWO cities are furthest from the beach?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!