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3 years ago

Which type of energy refers to the sum of potential and kinetic energies in the particles of a substance?

Chemistry

1 answer:

Andru [333]3 years ago

5 0

Thermal (heat) energy is ur answer mate

Hope it helps

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You have 16.0 g of some compound and you perform an experiment to remove all of the oxygen, 11.2 g of iron is left. What is the

Makovka662 [10]

The empirical formula of this compound is $Fe_2O_3$

<h3>Empirical formula </h3>

To calculate the empirical formula of a compound, the value of moles of each element is needed.

As we have the information of the mass value, we will use the molar mass expression, which corresponds to:

$MM_O = 16g/mol\\MM_Fe = 55.8g/mol$

$MM = \frac{m}{mol}$

$16 = \frac{4.8}{x}$

$x = 0.3mol$

$55.8=\frac{11.2}{x}\\x = 0.2$

As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:

$O = 0.3 \times 10 = 3\\Fe = 0.2 \times 10 = 2$

$Fe_2O_3$

So, the empirical formula of this compound is $Fe_2O_3$ .

Learn more about empirical formula: brainly.com/question/1247523

3 0

2 years ago

What are 2 chemical changes of water?

zmey [24]

Hydrogen peroxide in water and adding kool- aid powder to water so the liquid turns red

3 0

2 years ago

Properties of group 7 (aka. The Halogens)?

ella [17]

Halogens can be characterized as :

1) High Electronegativity
2) Low melting & boiling points
3) Forms Ionic compounds
4) Non-metallic in nature

Hope this helps!

7 0

3 years ago

Helpppppppppppppp!!!!!!!

OlgaM077 [116]

Something on a man i think it’s crocs

3 0

3 years ago

Which statement correctly describes the location and charge of the protons in an atom?

Bezzdna [24]

Answer:

Protons are located in the nucleus and have a positive charge and a mass of 1.

Explanation:

Know about protons, neutrons, and electrons.

6 0

3 years ago