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Orlov [11]
3 years ago
13

Coal and Diamond are two different form of carbon. which is denser?​

Chemistry
2 answers:
GalinKa [24]3 years ago
7 0

Answer:

diamond is denser because it is more tightly packed than coal

Ivenika [448]3 years ago
6 0

Answer:

Diamond

Explanation:

A diamond have a density of 3.51 g

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Calculate the number of Na ions and Cl ions and total number of ions in 14.5g of NaCl.​
Elanso [62]

Answer:

Number of Na ions in 14.5 g of NaCl is 1.49 × 10²³.

Number of Cl ions in 14.5 g of NaCl is 1.49 × 10²³.

Total number of ions =  1.49 × 10²³  +  1.49 × 10²³ = 2.98 × 10²³.

Explanation:

1 mole of any compound contains 6.023 × 10²³ molecules.

molecular weight of NaCl is 23 + 35.5 = 58.5 g.

so, 58.5 grams of NaCl makes 1 mole

⇒ 14.5 g of NaCl = \frac{14.5}{58.5} =  0.248 moles.

⇒ 0.248 mole contains 0.248 × 6.023×10²³ molecules

=  1.49 × 10²³ molecules.

And 1 molecule contains 1 Na ion and 1 Cl ion.

⇒ number of Na ions in 14.5 g of NaCl is 1.49 × 10²³.

⇒ number of Cl ions in 14.5 g of NaCl is 1.49 × 10²³.

Total number of ions =  1.49 × 10²³  +  1.49 × 10²³ = 2.98 × 10²³.

6 0
3 years ago
Pf3i2 is a nonpolar molecule. based on this information, determine the f−p−f bond angle, the i−p−i bond angle, and the f−p−i bon
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Chromatin consists of long strands of material located within the nuclear membrane.
Dmitry_Shevchenko [17]

Answer:

True

Explanation:

4 0
3 years ago
Can someone help me plz
Sidana [21]
That answer is what characteristic you have.
4 0
3 years ago
Problem: Convert 30 cm to mm.<br> Need full process pls help
marta [7]

Answer: 300mm

Explanation:

30cm x (10mm/1cm) x <em>(1mm/1mm)</em> = 300mm

<em>Btw, I'm not sure about the </em><u><em>(1mm/1mm).</em></u>

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3 years ago
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