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lyudmila [28]
3 years ago
9

What is the purpose of finding oxidation states in the half-reaction method for balancing equations?

Chemistry
1 answer:
stiv31 [10]3 years ago
5 0
B is the answer 100%
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Aluminum has a face-centered cubic unit cell. How many atoms of Al are present in each unit cell
Serjik [45]

Answer:4

Explanation:

As shown in the image attached, a face-centred cubic structure has 8 atoms at the corners and 6 face center atoms.

Each corner atom contributes to eight cell, so per unit cell 1/8 ×8 =1atom

Face center atoms contributes to two unit cells 1/2 × 6=3atoms

Total atoms =3+1=4atoms

Therefore the atoms in Al FCC per unit cell is 4

7 0
3 years ago
How were weapons and utensils fashioned during the Stone Age
Alenkasestr [34]
They were created with stone and wood and sometimes even bones, I hope this helped!
4 0
3 years ago
Mole conversions.<br> Find the number of moles of argon in 607g of argon?
bogdanovich [222]

Answer:

24249.65 mol

Explanation:

n=MM × m

n= 39.95 ×607

n=24249.65

5 0
3 years ago
Near the equator, the sun heats the surface strongly, causing warm air to rise steadily. This creates the _________________, an
kenny6666 [7]
Doldrums, low is the correct answer.
8 0
2 years ago
the men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many second
Lyrx [107]

140 s. It would take 140 s to swim 0.150 mi .

<em>Step 1</em>. Convert the <em>time to seconds</em>

Time = 14 min × (60 s/1 min) + 34.56 s = 840 s + 34.56 s = 874.56 s

<em>Step 2</em>. Convert <em>miles to metres </em>

Distance = 0.150 mi × (1609.3 m/1 mi) = 241.4 m

<em>Step 3.</em> Calculate the <em>time to swim 241.4 m</em>

Time = 241.4 m × (874.56 s/1500 m) = 140 s

(<em>As of 2012, the men’s freestyle record for 1500 m was 14:31.02</em>.)

5 0
3 years ago
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