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sveticcg [70]
3 years ago
15

What is empirical formula​

Chemistry
1 answer:
Ilia_Sergeevich [38]3 years ago
6 0
Empirical formula is a formula that gives the proportions of the elements present in a compound, but not the actual numbers or arrangement of atoms
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Energy can be changed from potential to kinetic.<br> A.True<br> B.False
vampirchik [111]

Answer:

An object has potential energy (stored energy) when it is not in motion. Once a force has been applied or it begins to move the potential energy changes to kinetic energy (energy of motion).

Therefore, true. (Also would u mind giving brainliest, you don't have to hehe)

6 0
3 years ago
14. A cinder cone is the simplest type of volcano.<br> a. True<br> b. False
dusya [7]

Answer:

True

Explanation:

They are built from particles and blobs of congealed lava ejected from a single vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as cinders around the vent to form a circular or oval cone, making them the simplest out there

7 0
4 years ago
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What is the name of the force exerted by blood on the walls of arteries
Digiron [165]
The name of the force exerted by blood on the wall of the arteries is blood pressure. Blood<span> pressure is the </span>force<span> of </span>blood<span> against the </span>walls<span> of the </span>arteries<span>.
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3 0
3 years ago
Someone please help me i’m stuck
Daniel [21]
I thought about writing it for you but then i found this and thought i will give help but at the sometime allow you write the response you self

5 0
4 years ago
Combustion of hydrocarbons such as butane () produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosp
Dahasolnce [82]

Answer:

1. C₄H₁₀ + ¹³/₂O₂ → 4CO₂ + 5H₂O

2. V = 596L

Explanation:

Butane (C₄H₁₀) reacts with oxygen (O₂) to produce carbon dioxide (CO₂) and water (H₂O) thus:

C₄H₁₀ + O₂ → CO₂ + H₂O

1. The balanced chemical equation is:

C₄H₁₀ + ¹³/₂O₂ → 4CO₂ + 5H₂O

2. 0,360kg of butane are:

360g×\frac{1mol}{58,12g}=<em>6,19moles of butane</em>

These moles of butane are:

6,19moles of butane×\frac{4CO_2}{1molButane}= <em>24,8 moles CO₂</em>

Using V=nRT/P

Where:

n are moles (24,8 moles CO₂); R is gas constant (0,082atmL/molK); T is temperature, 20°C (293,15K); and P is pressure (1atm).

Volume (V) is:

<em>V = 596L</em>

I hope it helps!

8 0
4 years ago
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