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Aloiza [94]
3 years ago
10

Do air particles exert a force when they collide with objects yes or no

Chemistry
2 answers:
VMariaS [17]3 years ago
6 0

Answer: Yes Gas pressure is caused by the force exerted by gas molecules colliding with the surfaces of objects (Figure 5.2. ... In fact, normal air pressure is strong enough to crush a metal container when not balanced by equal pressure from inside the container

Explanation:

irga5000 [103]3 years ago
4 0

Answer:

yes

Explanation:

Gas pressure is caused by the force exerted by gas molecules colliding with the surfaces of objects (Figure 5.2. 1). ... In fact, normal air pressure is strong enough to crush a metal container when not balanced by equal pressure from inside the container.

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Help me pleaseeeee<br> JejaJen she fiabais an duende
Anvisha [2.4K]

Answer:

el primero es Li, y el segundo es ... oh, está cortado

Explanation:

8 0
3 years ago
Which polyatomic ion is found in the compound represented by the formula NaHCO3?
olga nikolaevna [1]

Answer is (2) - hydrogen carbonate


<em>Explanation:</em>


NaHCO₃ is an ionic compound which is made from Na⁺ and HCO₃⁻ ions. The decomposition is

NaHCO₃ → Na⁺ + HCO₃⁻


Among the resulted ions, Na⁺ is a monatomic ion while HCO₃⁻ is a polyatomic ion.


<em>Polyatomic ions mean ions which are made of two or more different atoms.</em>


HCO₃⁻ is made from 3 atoms as H, C and O. The name of HCO₃⁻ ion is bicarbonate or hydrogen carbonate.

8 0
3 years ago
Concentrated hydrochloric acid is made by pumping hydrogen chloride gas into distilled water. If concentrated HCl contains 439 g
Elza [17]

Answer:

12.10 mol / 1 L

Explanation:

Molarity of a substance , is the number of moles present in a liter of solution .

M = n / V

M = molarity ( unit = mol / L or M )

V = volume of solution in liter ( unit = L ),  

n = moles of solute ( unit = mol ),  

Moles is denoted by given mass divided by the molecular mass ,  

Hence ,

n = w / m

n = moles ,

w = given mass ,

m = molecular mass .  

From the question ,

The data given is as follows -

w = 439 g

As , we known for HCl ,

m = 36.46 g/mol

V = 1 L

From the above data ,

Moles are given as -

n = w / m

n = 439 / 36.26 = 12.10 mol ,

Now , the molarity is given as ,

M = n / V

M = 12.10 mol / 1 L

M = 12.10 mol /L

7 0
3 years ago
Sara is making an omelet. She cracks open 6 eggs and places them in a bowl. She adds some milk, salt, and pepper to the eggs and
Sunny_sXe [5.5K]

Answer:  Well then I guess Sara is having a good breakfast

Explanation: what was the point of this question?

6 0
3 years ago
In 1773 Benjamin Franklin, investigating the calming effect of oil on the water of a pond near London, observed that a teaspoonf
likoan [24]

Answer:

a. 2.44 nm

b. 15.33 nm²

Explanation:

a. Calculate the thickness (in nm) of the surface film

Since the volume of a teaspoon equals V = 4.93 cm³ and the area of the oil film is half an acre = 1/2 × 4046.86 m² = 2023.43 m²

The volume of the oil film, V' equals the volume of the oil in the teaspoon, V

V' = Ah where A = cross-sectional area of oil film = 2023.43 m² = 2023.43 × 10⁴ cm² and h = height of oil film

So, V' = V

Ah = V

h = V/A

= 4.93 cm³/2023.43 × 10⁴ cm²

= 0.00244 × 10⁻⁴ cm

= 2.44 × 10⁻⁷ cm

=  2.44 × 10⁻⁷ cm × 1m/100 cm

= 2.44 × 10⁻⁹ m

= 2.44 nm

b. The surface area (in nm2) occupied by an oleic acid molecule on water.

Since the height of the oil film equals the diameter of the oil molecule, and the molecule is assumed to be a sphere of radius, r. Its surface area is thus A = 4πr²

r = h/2 = 2.44 nm/2 = 1.22 nm

A = 4πr²

A = 4π(1.22 nm)²

A = 4.88π nm²

A = 15.33 nm²

7 0
3 years ago
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