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
AveGali [126]
3 years ago
7

Name two fluid technologies that make use of air

Chemistry
1 answer:
nika2105 [10]3 years ago
7 0

Answer: Refrigerator and fire extinguisher

Explanation: Refrigerator:An evaporator fan draws air from the refrigerator and blows it over the evaporator coils. The liquid refrigerant absorbs heat from the air and the air blows back into the refrigerator at a lower temperature, cooling the refrigerator. The liquid refrigerant starts to vaporize as it heats up and moves to the compressor.

Fire extinguisher:They work by smothering the fire: when you put a layer of powder or foam on the fire, you cut the fuel off from the oxygen around it, and the fire goes out. Carbon dioxide (CO2) extinguishers contain a mixture of liquid and gaseous carbon dioxide (a nonflammable gas).

You might be interested in
What is the volume (L) occupied by a mole of an ideal gas,
irina [24]

Answer:

29.2 L

Explanation:

Given data

  • Moles (n): 1 mol
  • Pressure (P): 0.824 atm

626mmHg.\frac{1atm}{760 mmHg} =0.824atm

  • Temperature (T): 293 K

We can find the volume of the gas (V) of the using the ideal gas equation.

P × V = n × R × T

V = n × R × T / P

V = 1 mol × (0.0821 atm.L/mol.K) × 293 K / 0.824 atm

V = 29.2 L

7 0
3 years ago
If a radioactive isotope of thorium (atomic number 90, mass number 232) emits 6 alpha particles and 4 beta particles during the
kolbaska11 [484]

Answer:

The mass number of the stable daughter product is 208

Explanation:

First thing's first, we have to write out the equation of the reaction. This is given as;

²³²₉₀Th → 6 ⁴₂α  +  4 ⁰₋₁ β + X

In order to obtain the identity of X, we have to obtain it's mass numbers and atomic number.

There is conservation of matter so we expect the mass number to remain the same in both the reactant and products.

Mass Number

Reactant = 232

Product = (6* 4 = 24) + (4 * 0 = 0) + x = 24 + x

since reactant = product

232 = 24 + x

x = 232 - 24 = 208

Atomic Number

Reactant = 90

Product = (6* 2 = 12) + (4 * -1 = -4) + x = 8 + x

since reactant = product

90 = 8 + x

x = 90 - 8 = 82

5 0
4 years ago
Hydrofluoric acid is what type of acid?
posledela

Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon).

5 0
3 years ago
How many significant figures are in the measurement 40, 500 mg? a) two b) three c) four d) five
emmainna [20.7K]
I believe there are 3 significant figures B.
8 0
3 years ago
Why alkali metal impart characteristic colours when introduced to flame​
aliina [53]
Alkali metals impart characteristic colours to the flame due to low ionisation enthalpy, when an alkali metal or its salt is heated in a flame, the valence electrons are excited to higher energy level.
8 0
4 years ago
Other questions:
  • The density of silver is 10.5 g/cm3. what volume would a piece of silver with a mass of 54.5 g occupy?
    8·1 answer
  • Density is the ratio of mass to volume. Another way to say this is
    7·1 answer
  • Find the half life of a substance that decays from 32g to 11.5 g in 64 days
    13·1 answer
  • For the reaction A+B+C→D+E, the initial reaction rate was measured for various initial concentrations of reactants. The followin
    7·1 answer
  • Please can someone please help me !!
    6·1 answer
  • How many atoms is 500.0 moles of pure gold?
    11·1 answer
  • I need help finding the volume, can't tell if i'm over thinking or if i'm wrong ;(
    11·1 answer
  • What is the possible intensity of the earthquake as observed in figure 2​
    9·1 answer
  • An inflatable swimming pool held 1,000 gallons of water. It sprang a leak, and 5% of the water leaked out of the pool.
    6·1 answer
  • A neutral atom has a ground state electron configuration of 1s22s22p63s2.The neutral atom becomes an ion during a chemical react
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!