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12345 [234]
3 years ago
12

Given the balanced equation representing a reaction:

Chemistry
1 answer:
notsponge [240]3 years ago
4 0

Answer:

it is a base because they accept H+ ions

Explanation:

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How many oxygen atoms are in the product of this balanced chemical equation
svlad2 [7]

Answer:

two oxygen atoms

There are two oxygen atoms in the reactants and two atoms of oxygen in the product.

Explanation:

8 0
3 years ago
Write the limiting forms (or Canonical forms) of the following ions:
nekit [7.7K]

Answer:

Canonical structures of a chemical specie explain its observed properties from a valence bond theory perspective.

Explanation:

Resonance is a valence bond concept introduced by Linus Pauling to explain the observed properties of certain chemical species such as bond lengths, bond angles, bond order , etc.

There are certain chemical species for which a single chemical structure does not suffice in explaining its observed properties. For instance, the bond order in CO3^2- is about 1.33. Its bond length, shows that the C-O bond present in CO3^2- is neither a pure C-O single bond nor a pure C-O double bond. Hence the structure of CO3^2- is 'somewhere in between' three contributing canonical structures as shown in the image attached to this answer. The resonance structures of NO3^- are also shown.

3 0
3 years ago
The density of corn syrup is 1.38 g/cm3.. . Which substance will float in corn syrup? A. graphite (2.16 g/cm3). B. glycerin (1.2
PolarNik [594]
"Glycerin" is the one substance among the following choices given in the question that will <span>float in corn syrup. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has actually come to your desired help.</span>
7 0
3 years ago
Read 2 more answers
Use this balanced equation to help you solve:
valentina_108 [34]

1. 842g of NaOH will form 547.3 g of Al(OH)₃

2. The yield is 93.55%

<u>Explanation:</u>

3NaOH + Al → Al(OH)₃ + 3Na

1.

Molar mass of NaOH = 40 g/mol

Molar mass of Al = 27 g/mol

Molar mass of Al(OH)₃ = 78 g/mol

According to the balanced equation:

3 moles of NaOH requires 1 mole of Al to form 1 mole of Al(OH)₃

The ratio of NaOH : Al : Al(OH)₃ = 3 : 1 : 1

3 X 40 g of NaOH reacts with 27 g of Al to form 78 g of Al(OH)₃

120 g of NaOH + 27g of Al → 78 g of Al(OH)₃

120g of NaOH form 78g of Al(OH)₃

1g of NaOH will form \frac{78}{120} g of Al(OH)₃

842g of NaOH will form \frac{78}{120} X 842 g of Al(OH)₃

                                   = 547.3 g of Al(OH)₃

Therefore, 842g of NaOH will form 547.3 g of Al(OH)₃

2. Only 512 g of Al(OH)₃ is formed

Yield % = ?

Yield = \frac{512}{547.3} X 100\\\\Yield = 93.55

Therefore, the yield is 93.55%

5 0
3 years ago
The half-life of radioactive 55Cr is 1.8 hours. The delivery of a sample of this isotope from the reactor to your laboratory req
sertanlavr [38]

Answer:

The minimum amount of such material that should be shipped is 63.9 mg≅ 64 mg.

Explanation:

Given Data:

Half life=1.8 hours

Formula:

Half life=0.693/k

Where:

k is rate constant

k=0.693/1.8

k=0.385 hr^-1

Formula to find initial concentration:

ln\frac{A}{A_o}=-kt

Where:

A is final concentration

A_o is initial concentration

t is time

Taking exponential on both sides:

\frac{A}{A_o}=e^{-kt}\\ A_o=\frac{A}{e^{-kt}}\\ A_o=63.9 mg

The minimum amount of such material that should be shipped is 63.9 mg≅ 64 mg.

4 0
3 years ago
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