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posledela
3 years ago
10

Example 4. Balance the equation below in which methane reacts with oxygen in the atmosphere to release heat and the atoms recomb

ine to form carbon dioxide and water vapour. CH4 + O2------>CO2 + H2O 1 10​
Chemistry
2 answers:
bija089 [108]3 years ago
5 0

Answer:

CH4+O2---->CO2 + H2O unbalance

C=1. C=1

H=4. H=2x2

O=2x2. O=2 +(1 x2)

CH4+2O2----->CO2 +2H2O. Balanced

Tems11 [23]3 years ago
4 0

Answer:

CH4 + 2O2 ----> CO2 + 2H2O

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3 years ago
Determine the molarity for the fixer Sodium carbonate decahydrate (I dissolved 127.62 grams of sodium carbonate for every 4 lite
grin007 [14]

Answer:

0.112 M.

Explanation:

  • Molarity is the no. of moles of solute in a 1.0 L of the solution.

M = n/V.

<em>M = (mass/molar mass)solute x (1000/V of the solution).</em>

mass = 127.62 g.

molar mass = 286.138 g/mol.

V of the solution = 4.0 L = 4000.0 mL.

<em>∴ M = (mass/molar mass)solute x (1000/V of the solution)</em> = (127.62 g / 286.138 g/mol) x (1000 / 4000.0 mL) = <em>0.1115 M ≅ 0.112 M.</em>

4 0
4 years ago
Explain the differences between ionic and covalent bonding that account for the differences in their melting points.​
Maurinko [17]

Answer:

El enlace iónico se da entre dos átomos diferentes (metálico y no. metálico), mientras que el enlace covalente se produce entre dos átomos iguales (no-metálicos). En el enlace covalente hay un compartimiento de electrones, mientras que en el enlace iónico hay una transferencia de electrones

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5 0
3 years ago
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tangare [24]

Answer:

Explanation:

Incorrect name                                  correct name

a) calcium dichloride                         calcium chloride

b) copper(II) oxide                               copper(I) oxide

c) stannous tetrafluoride                      stannic fluoride

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5 0
3 years ago
Plz HElp!!!!
valentina_108 [34]

Answer:

Substance 4

Explanation:

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If an object is immersed in a denser liquid, it will sink

Since the density of water is 1 g/cm^3, any substance whose density is less than that of water will float in it.

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7 0
3 years ago
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