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Ira Lisetskai [31]
3 years ago
12

How do you balance: Al+Fe3O4=Al2O3+Fe ?

Chemistry
2 answers:
Keith_Richards [23]3 years ago
4 0

Answer:

8Al + 3Fe3O4 → 4Al2O3 + 9Fe

Explanation:

liraira [26]3 years ago
3 0

Answer:

8Al+3Fe3O4=4Al2O3+9Fe

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Explain the difference between wavelength and frequency
Katyanochek1 [597]

Answer:

Wavelength (typically measured in nanometers) is the distance between two points in a wave.Frequency (typically measured in Hertz) is the number of waves in a specific time . Frequency and wavelength have both direct and inverse relationships. The crucial difference between frequency and wavelength is that frequency shows the total number of wave oscillations in a given time. As against wavelength specifies the distance between two specific points of a wave.

Explanation:

Frequency is how often something changes per second be it amplitude of a voltage on a wire or be it the bobbing back and forth of a bobblehead. Frequency is how often something moves up and down in a second. If a bobble head moves forward and backward in one second then it has a bobbling frequency of 1 Hertz (Hz). The unit of frequency is Hertz (Hz) or # of cycles or oscillations per second. A wavelength is measured in distance like meters (m). For photons or light or radiowaves the equation is wavelength=speed of light/frequency.

4 0
3 years ago
What element is located in group 2, period 2?
telo118 [61]

This element is beryllium.

If you find my answer helpful, please brainliest me!

7 0
3 years ago
Boron’s chemistry is not typical of its group.(a) Cite three ways in which boron and its compounds differ significantly from the
Mila [183]

Boron’s chemistry is not typical of its group. is group 3A (13) shows the increasing metallic character from Al to Tl.

All Boron compounds are covalent whereas the other elements in group 3A (13) form mostly ionic compounds.

Except for Boron, the other elements of group 3A (13) show increasing metallic character from Al to Tl. But Boron is a metalloid.

Compared to the other elements in group 3A, boron has a lower reactivity in chemical terms (13)

The metalloid boron (B), as well as the metals aluminium (Al), gallium (Ga), indium (In), and thallium, are all part of group 3A (or IIIA) of the periodic table (Tl). In contrast to the other members of Group 3A, the element borax primarily forms covalent connections.

To learn more about group 3A (13) refer the link:

brainly.com/question/5489194

#SPJ4

6 0
1 year ago
How many moles are in 4.6 x 10^19 atoms? <br><br> *#27 is the question
velikii [3]
There are 0.000076 moles in 4.6 x 10^19 atoms.
3 0
3 years ago
Calculate the density mass= 54.2 volume= 78.1
Helen [10]

Answer:

0.693 (you can round it up if you want to)

Explanation:

Density= mass ÷ volume

54.2 ÷ 78.1 = 0.693

I hope this helped☺

6 0
3 years ago
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