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professor190 [17]
4 years ago
6

The chemical formula for two substances are Fe and Fe2O3 which is an element and which is a compound how would you justify the s

election of substances as an element or as a compound
Physics
1 answer:
ipn [44]4 years ago
8 0

Answer:

Fe - Element

Fe2O3 - Compound

Explanation:

From the given chemical formula for two substances, Fe and Fe2O3, Fe is an element while fe2O3 is a compound.

It is so because an element is consist of the same type of atoms while a compund is consist of different atoms under specific proportions. for example: Fe is an element while fe2O3 is a compound.

Hence, the correct answer is:

Fe - Element

Fe2O3 - Compound

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longitudinal waves have those properties

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Describe a well-known hypothesis that was discarded because it was found to be untrue.earth-centered model of the universe. the
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2 years ago
A dielectric-filled parallel-plate capacitor has plate area A = 30.0 cm2 , plate separation d = 9.00 mm and dielectric constant
PIT_PIT [208]

Answer:

9.96\cdot 10^{-10}J

Explanation:

The capacitance of the parallel-plate capacitor is given by

C=\epsilon_0 k \frac{A}{d}

where

ϵ0 = 8.85x10-12 C2/N.m2 is the vacuum permittivity

k = 3.00 is the dielectric constant

A=30.0 cm^2 = 30.0\cdot 10^{-4}m^2 is the area of the plates

d = 9.00 mm = 0.009 m is the separation between the plates

Substituting,

C=(8.85\cdot 10^{-12}F/m)(3.00 ) \frac{30.0\cdot 10^{-4} m^2}{0.009 m}=8.85\cdot 10^{-12} F

Now we can calculate the energy of the capacitor, given by:

U=\frac{1}{2}CV^2

where

C is the capacitance

V = 15.0 V is the potential difference

Substituting,

U=\frac{1}{2}(8.85\cdot 10^{-12}F)(15.0 V)^2=9.96\cdot 10^{-10}J

4 0
3 years ago
The boiling point of water is 91.30 °C on the
Taya2010 [7]

Answer:

196.34 °F

Explanation:

To convert from degrees celsius to degrees fahrenheit, use this equation:

(°C * 9/5) + 32 = °F

So, using this equation:

(91.30 * 9/5) + 32 = °F

196.34 + 32 = °F

°F = 196.34

Hope this helps!

3 0
3 years ago
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