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Strike441 [17]
1 year ago
13

In one to two sentences, identify the type of model shown and describe the atomic sructure of a molecule of water.

Chemistry
1 answer:
QveST [7]1 year ago
6 0

The model shown is a ball and stick model of a water molecule showing  atomic structure of a water molecule consisting of two atoms of hydrogen bonded to an oxygen atom.

<h3>What are models?</h3>

Models are representations in the form of diagrams, pictures, or illustration of concepts, ideas, or structures of other objects.

In science, models are used to represent molecules and atoms of substances.

Some common models used in chemistry to represent the molecules of substances are:

  • ball and stick model
  • space-filling models

The model shown is a ball and stick model of a water molecule.

The atomic structure of a water molecule consists of two atoms of hydrogen bonded to an oxygen atom.

In conclusion, models are used to represent the structure of other substances or concepts.

Learn more about ball and stick model at: brainly.com/question/4300427

#SPJ1

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calculate how many milliliters of 0.142 M NaOH are needed to completely neutralize 21.4 mL of 0.294 M H2C4H4O6.
Flura [38]

Answer:

The answer to your question is 88.7 ml

Explanation:

Data

Volume = ?

Concentration of NaOH = 0.142 M

Volume of H₂C₄H₄O₆ = 21.4 ml

Concentration of H₂C₄H₄O₆ = 0.294 M

Balanced chemical reaction

               2 NaOH + H₂C₄H₄O₆  ⇒  Na₂C₄H₄O₆  +  2H₂O

1.- Calculate the moles of H₂C₄H₄O₆

Molarity = moles/volume

Solve for moles

moles = Molarity x volume

Substitution

moles = 0.294 x 21.4/1000

Result

moles = 0.0063

2.- Use proportions to calculate the moles of NaOH

              2 moles of NaOH ------------------ 1 moles of H₂C₄H₄O₆

               x                           ------------------ 0.0063 moles

               x = (0.0063 x 2) / 1

               x = 0.0126 moles of NaOH

3.- Calculate the volume  of NaOH

Molarity = moles / volume

Solve for volume

Volume = moles/Molarity

Substitution

Volume = 0.0126/0.142

Result

Volume = 0.088 L or 88.7 ml

3 0
3 years ago
If 1.00 g of a hydrocarbon is combusted and found to produce 3.14 g of co2, what is the empirical formula of the hydrocarbon?
photoshop1234 [79]
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The mass fraction of carbon in CO2 is 3/11. Hence,
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Given that we have 1 g of the hydrocarbon, the mass of H is equal to 0.14 g. 

     moles of C = 0.86 g C / 12 g = 0.0713
     moles of H = 0.14 g H / 1 g  = 0.14

The empirical formula for the hydrocarbon is therefore, CH₂.
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2 years ago
given a mixture of lead to oxide ammonium chloride and sodium chloride describe how a mixture can be separated to obtain a sampl
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Answer:

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