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aleksandrvk [35]
3 years ago
15

Steel is formed when a little bit of carbon is added to this element (the carbon gives the strenghth and hardness to the steel

Chemistry
1 answer:
Alik [6]3 years ago
6 0
Don't you think that element is ferrous i mean iron.
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Calculate the number of molecules in 6.00 moles h2s?.
LenKa [72]
To calculate the number of molecules in <span>6.00 moles of hydrogen sulfide, H2S, the equivalence factor used is Avogadro's number equal to (6.022 x 10^23 molecules/mole). The answer is 6</span>.00 moles of hydrogen sulfide * <span>(6.022 x 10^23 molecules/mole) equal to 3.61 x10^24 molecules.</span>
5 0
3 years ago
Read 2 more answers
0.68 moles of calcium to calcium atoms​
Oksanka [162]

0.68 \: moles \: calcium \times  \frac{6.02 \times  {10}^{23} \: calcium \: atoms }{1 \: mole \: calcium} \\

The (( mole calcium ))s are simplified so the answer is based on the number of calcium atoms.

0.68 \times 6.02 \times  {10}^{23} = 68 \times  {10}^{ - 2} \times 602 \times  {10}^{ - 2} \times  {10}^{23} \\

= 68 \times 602 \times  {10}^{ - 4} \times  {10}^{23} = 40936 \times  {10}^{19} \\

calcium \: atoms = 40936 \times  {10}^{19}  \\

_________________________________

And we're done.

Thanks for watching buddy good luck.

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3 0
3 years ago
Consider the following unbalanced particulate representation of a chemical equation:
nevsk [136]

Answer:

H2 + I2 --> 2HI

Explanation:

The two reactants are diatomic molecules because they contain two atoms of the same element. Therefore, they would need to have a subscript of "2" next to their symbols.

When balancing an equation, you want the same amount and type of atoms on both sides. By adding a coefficient of "2" in front of the product, two H's and two I's are now on both sides.

3 0
3 years ago
if there are 19 grams of oxygen in a sample of aluminum oxide . how many grams of aluminium are present ​
Maksim231197 [3]

Explanation:

Al2O3

16=molar mass of one oxygen atom

Number of moles: mass/molar mass

Mol of O3: 19÷(16*3) = 0.40 g/mol

mole ratio

0.40: 3 (oxygen)

0.27: 2 (aluminum)

Mass = molar mass*mole

0.27*(27*3)= 21.87g

3 0
3 years ago
Read 2 more answers
1 year = 365 days
BARSIC [14]
114.2 years

1,000,000/24= 41,666.66666666667

41,666.66666666667/365= 114.1552511415525

114.1552511415525 rounded to the nearest tenth is 114.2
3 0
3 years ago
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