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lana [24]
2 years ago
12

Draw a physical model that shows the reaction of zinc metal and hydrochloric acid (hydrogen chloride).

Chemistry
1 answer:
Brilliant_brown [7]2 years ago
3 0

Answer:

Zinc + Hydrochloric Acid Zinc Chloride and Hydrogen Gas

Zn + 2HCI - ZnCl2 + H2

Explanation:

Be sure to label your model to clearly show how you are representing the atoms

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A 2.4L balloon filled with helium at room temperature 25oC is put into liquid nitrogen
Stels [109]

Answer:

V₂ = 0.62 L

Explanation:

Given data:

Initial volume = 2.4 L

Initial temperature = 25°C

Final temperature = -196°C

Final volume = ?

Solution:

Initial temperature = 25°C (25+273 = 298 K)

Final temperature = -196°C ( -196+273 = 77 K)

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁  

V₂ = 2.4 L × 77 K / 298 k

V₂ = 184.8 L.K / 298 K

V₂ = 0.62 L

5 0
2 years ago
What is the identity of an ion having 46 protons, 42 electrons and 60 neutrons?
Anon25 [30]

Answer:

first u lick it then out some sliva on it then rub it and once the volcano erupts u put it back in ur mouth and blow real hard ok!

Explanation:

repeat this process till the dong bleeds!

3 0
2 years ago
if an object 18 millimeters high is placed 12 millimeters from a diverging lens and the image is formed 4 mm in front of the len
Natasha2012 [34]
I think the answer is 7mm but I'm not sure.

Have a great day!
5 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu.
stealth61 [152]

Answer:

Light energy; chemical

Explanation:

The light energy of the Sun is converted into chemical energy by the plants.

5 0
3 years ago
What is the composition of stainless steel​
andreev551 [17]
Stainless steel is an alloy of iron, chromium and nickel.
3 0
1 year ago
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