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Brut [27]
3 years ago
10

When the equation below is correctly balanced, what are the coefficients of Pb and H20, respectively? Pb + H2O + O2 => Pb(OH)

2 A. 1,2 B. 2,1 C. 2,2 D. 1,1 E. none of these
Chemistry
1 answer:
stepan [7]3 years ago
8 0

Answer:

C

Explanation:

Pb + H2O + O2 => Pb(OH)2

Number of oxygen atom on left = 3

Number of oxygen atom on the right = 2

To balance number of oxygen

Change the coefficient of Pb and H2O to two each

2Pb + 2H2O + O2 => 2Pb(OH)2

The coefficient of Pb and H2O is 2,2

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Hydrogen is a possible future fuel. However, elemental hydrogen is rare, so it must be obtained from a hydrogen- containing comp
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Answer:

1.1 × 10² g

Explanation:

First, we will convert 1.0 L to cubic centimeters.

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Why is potassium less reactive than silver
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Draw a Lewis structure for C2H3Cl. Show all unshared electron pairs. None of the atoms bears a formal charge, and all atoms have
aleksklad [387]

Answer:

See picture below

Explanation:

To do this, we first need to know how are the bonds in this molecule are. To do so, let's calculate the number of insaturations in the molecule:

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These numbers indicate if the molecule has double bond, triple bond, ring, cyclo, among other options:

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As it's a very small molecule, we can assume this molecule only have a double bond, and it's an alkene.

So the lewis structure, shows the electrons and the bonding, and also shows the unshared electron pairs, depending on how much electron have each molecule.

In the case of carbon:

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Therefore, we also know that Carbon has a double bond, so, the main molecule would have something like this:

C = C

so next to the carbons, we can put two hydrogens and in the other carbon, the chlorine and the remaining hydrogen.

See picture below for structure:

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