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MatroZZZ [7]
2 years ago
14

There are 1.2 x 1024 formula units

Chemistry
1 answer:
____ [38]2 years ago
4 0

mol CaCl₂ = 1.2 x 10²⁴ : 6.02 x 10²³ = 1.993

mass = 1.993 x 111 g/mol = 221.223 g

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ANSWER ASAP PLEASE!<br> Balance the following equation:<br> _Fe + _O₂ --&gt; _FeO₃
ira [324]
It would be. 2Fe + 3O2 ——> 2Fe03. You have to make oxygen 6 on both sides in order to balance, then you can do Fe. Which on the right would be 2 by making oxygen 6. Then add the 2 to the other side to balance it.
8 0
3 years ago
Which term best describes the relationship between D-Mannose and L-Mannose?
frosja888 [35]

Answer: The correct answer is C.

Explanation: Hope this helps plz mark brainliest.

5 0
3 years ago
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Oxygen gas can be prepared by heating potassium chlorate according to the following equation:
Cerrena [4.2K]

Moles KClO₃ = 0.239

<h3>Further explanation</h3>

Given

Reaction

2KClO₃(s) ⇒2KCl(s) + 3O₂(g)

P water = 23.8 mmHg

P tot = 758 mmHg

V = 9.07 L

T = 25 + 273 = 298 K

Required

moles of KClO₃

Solution

P tot = P O₂ + P water

P O₂ = P tot - P water

P O₂ = 758 - 23.8

P O₂ = 734.2 mmHg = 0.966 atm

moles O₂ :

n = PV/RT

n = 0.966 x 9.07 / 0.082 x 298

n = 0.358

From equation, mol ratio KClO₃ : O₂ = 2 : 3, so mol KClO₃ :

= 2/3 x mol O₂

= 2/3 x 0.358

= 0.239

4 0
3 years ago
Which factor increases the amount of water runoff?
bekas [8.4K]

D. impermeable rocks

Explanation:

Impermeable rocks is the factor among the give choices that will increase the amount of water runoff on the surface.

Surface run-off is liquid water that flows and moves on the earth surface.

  • An impermeable rock is a rock that lacks porosity and permeability.
  • Porosity is the amount or percentage of void spaces in rock.
  • Permeability is the inter-connectivity of the pores.
  • When a rock is impermeable, it will not allow water to infiltrate.

learn more:

Biogeochemical cycle brainly.com/question/3509510

#learnwithBrainly

7 0
4 years ago
Explain,in terms of electrons, why chlorine is more reactive than bromine
Paul [167]

Chlorine has less valence electrons than bromine, and, therefore, needs to bond with another atom to become more stable .

4 0
3 years ago
Read 2 more answers
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