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Alina [70]
1 year ago
5

Whats Fe2O3 compound name

Chemistry
1 answer:
Nady [450]1 year ago
4 0

Answer:

Iron(III) oxide  and its common name is Ferric Oxide

Explanation:

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The cube has a mass of 72.9 g.<br><br> What is its density in g/cm3? <br><br> What substance is it?
sashaice [31]
If the cube is 3 cm on each side, then it has a volume of 27 cm^3 (3 x 3 x 3). Density is mass divided by volume, so its density is 72.9/27 = 2.7 g/cm^3. 

<span>Going by the density, the cube is made of Aluminium - density is a fairly unique quantity</span>
6 0
3 years ago
Rutherford’s gold foil experiment demonstrated that
iVinArrow [24]

Answer:

Explanation:

The space between the large nucleus and the electrons is huge. We know this because the alpha particles shot at the gold foil most went right on through. That means that the space between hold atoms is very large.

B

Not only that but the deflection that takes place is not frequent further telling us that the the nucleus must be positively charged. That observation comes from the deflection itself. The charge on the nucleus must be the same as the alpha particle. If they were different, and the nucleus was negative, those particles that were deflected would now be absorbed.

4 0
2 years ago
A wave has a frequency of 4.00 hz and a wavelength of 10.0 m. What is the speed of the wave?
Sidana [21]

First use this equation to find the wave speed: vms== =τµ/ 0.4/ 0.001 20 / Then use the equation for solving frequency of a wavelength, and solve for wavelength λ = v/f = 20/100 = .2 m = 20 cm.

6 0
2 years ago
C) Do grits work better at killing fire ants than commercial products?
ss7ja [257]
No, fire ants can't die with the grit alone.
6 0
3 years ago
In this process, a piece of paper with small holes in it separates a heterogeneous mixture by letting through the small particle
Lisa [10]

Answer: Filtration

Explanation:

Heterogeneous mixtures  : It is a mixture that has non-uniform composition throughout the solution and the particle size or shapes are also different.  There is a physical boundary between the dispersed phase and dispersion medium.

Homogeneous mixtures  : It is a mixture that has uniform composition throughout the solution and the particle size or shapes are not different.  There is no physical boundary between the dispersed phase and dispersion medium.

Filtration is a type of mechanical separation process in which the smaller particles are separated from the bigger particles through the filter paper where small particles pass through the fine holes of filter paper and the left ones remain on the filter paper.

3 0
3 years ago
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