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Nitella [24]
3 years ago
9

Which of the following characteristics must be present for a substance to be called a mineral?

Chemistry
2 answers:
atroni [7]3 years ago
7 0
Answer is A have a crystal structure. 
Elis [28]3 years ago
7 0

Answer:

A. have a crystal structure

Explanation:

A mineral has a definite chemical structure

It has to be a solid

A mineral is inorganic

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For 2,663 kg of a compound with the formula Al(SO), determine the following quantities (4 pts each); a) The number of moles of t
Nastasia [14]

Answer:

a) 35.485 moles of Al(SO)

b) 35.485 moles of S atoms

c) 2.136197(10^{25}) Al atoms

d) 567.723 g of O

Explanation:

Let's define the following terms :

1 mol = 6.02.(10^{23}) elemental units

For example :

1 mol of oxygen atoms = 6.02.(10^{23}) oxygen atoms

Now, our compound has the following formula

Al(SO)

Where Al is aluminium

S is sulfur

And O is oxygen

All the subscripts are 1 so we can say the following :

1 molecule of Al(SO) has 1 atom of Al , 1 atom of S and 1 atom of O

In terms of moles :

1 mol of Al(SO) has 1 mol of Al , 1 mol of S and 1 mol of O

The molar masses of Al, S and O are

molarmass_{(Al)}=26.982\frac{g}{mol}

molarmass_{(S)}=32.065 \frac{g}{mol}

molarmass_{(O)}=15.999\frac{g}{mol}

If we sum all the molar masses =(26.982+32.065+15.999)\frac{g}{mol}=75.046\frac{g}{mol}

Finally, 75.046 g of Al(S0) is 1 mol of Al(SO) which contains 26.982 g of Al, 32.065 g of S and 15.999 g of O.

1 mol of Al(SO) contains 1 mol of Al, 1 mol of S and 1 mol of O.

Now we can calculate a),b),c) and d)

For a)

2.663 kg=2663g

75.046 g of Al(SO) = 1 mol of Al(SO)

2663 g of Al(SO) = x

x=\frac{2663}{75.046}mol=35.485 mol

2.663 kg of Al(SO) contains 35.485 moles of Al(SO)

b) and c) 1 mol of Al(SO) molecules contains 1 mol of S atoms and 1 mol of Al atoms

We have 35.485 moles of Al(SO) molecules so

We have 35.485 moles of S atoms

And 35.485 moles of Al atoms

If 1 mol = 6.02(10^{23})

35.485 moles of Al have (35.485)(6.02)(10^{23})=2.136197(10^{25}) Al atoms

d) 75.046 g of Al(SO) contains 15.999 g of O

2663 g of Al(SO) contains x g of O

x=\frac{(2663).(15.999)}{75.046} g

x = 567.723 g of O

6 0
3 years ago
Which type of energy is generated due to the movement of charged particles?
____ [38]
Electrical energy or the answer C
4 0
3 years ago
Read 2 more answers
What type of reaction FeO + SO3 → FeSO4
GenaCL600 [577]

Answer:

Iron(II) Oxide + Sulfur Trioxide = Iron(II) Sulfate

Explanation:

Please give Brainliest.

4 0
3 years ago
How many grams of hydrogen are needed to produce 1.80g of water according to this equation?
Nastasia [14]

Answer:

0.2g of hydrogen is needed to produce 1.80g of water

Explanation:

$H_{2}+O_{2} \to 2H_{2}O$

No. of moles of water$= \frac{Weight}{Molecular \, weight}$ \\

From given values,

Weight of water $=1.80g$

Molecular weight of water $=18g$

$\therefore$ No. of moles of water$=\frac{1.80}{18}=0.1 $

From equation, it is clear that 2 moles of water can be formed by 2 moles of $H_{2}$

Hence, 0.1 mole of water can be formed from 0.1 mole of $H_{2}$

Now,

No. of moles of $H_{2} = \frac{Weight}{Molecular \, weight}$

$\Rightarrow weight \,of\, H_{2}=No.\,of\,moles \times Molecular\,weight$\\ $=0.1 \times 2=0.2g$

8 0
3 years ago
Explain whether sodium and potassium will react to form a bond with each other
NISA [10]
<span>They will react but only in a physical and chemical change.</span>
4 0
3 years ago
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