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2 years ago

Which of the following chemical equations depicts a balanced chemical reaction?

Chemistry

1 answer:

Deffense [45]2 years ago

3 0

Answer:

D.) 2 H₂ + O₂ -----> 2 H₂O

Explanation:

An equation is balanced when there is an equal amount of each element on both sides of the reaction. If these amounts are unequal, coefficients can be added to modify the amount of particular molecules.

A.) Not balanced

2 H₂ + 2 O₂ -----> H₂O

Reactants: 4 hydrogen, 4 oxygen

Products: 2 hydrogen, 1 oxygen

B.) Not balanced

2 H₂ + 2 O₂ -----> 2 H₂O

Reactants: 4 hydrogen, 4 oxygen

Products: 4 hydrogen, 2 oxygen

C.) Not balanced

H₂ + O₂ -----> H₂O

Reactants: 2 hydrogen, 2 oxygen

Products: 2 hydrogen, 1 oxygen

D.) Balanced

2 H₂ + O₂ -----> 2 H₂O

Reactants: 4 hydrogen, 2 oxygen

Products: 4 hydrogen, 2 oxygen

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Compound A and compound B are constitutional isomers with molecular formula C4H9Cl. Treatment of compound A with sodium methoxid

Bezzdna [24]

Compound A will be 2-chloro-butane which in the presence of sodium methoxide will undergo the elimination of the halogen with a hydrogen from the neighboring atom carbon (not the one with which the halogen in bound), which have less hydrogen atoms, forming the trans-2-butene.

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3 years ago

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What is the density of the marble when the mass = 10g

Marysya12 [62]

The density of marble is between 2.6 and 2.8 grams per cm³ .

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4 years ago

What is the molality of a solution containing 3. 0 moles of nacl and 100. 0 moles of water?

Mama L [17]

The molality of a solution containing 3. 0 moles of NaCl and 100. 0 moles of water is 30 mol/kg.

The number of moles of solute in a solution equal to 1 kg or 1000 g of solvent is referred to as its molality. Mole per kilogram of solvent is the SI unit for molality.

Given:

3.0 moles of NaCl in 100 moles of water.

To find:

The molality of the solution

The moles of solute (NaCl) = 3.0 moles

The mass of solvent (water) = 100 moles (0.1 kg/mol)

Molality of a solution = Number of Moles of solute/ Mass of solvent(kg)

= 3.0 moles/0.1 kg/mol

= 30 mol/kg

To know more about Molality refer:

brainly.com/question/20354433

#SPJ4

4 0

2 years ago

Sodium and chlorine react to form sodium chloride. If there are 1.4 moles of sodium used, how many moles of chlorine were requir

sammy [17]

Answer:

0.7 moles of Chlorine gas is required.

Explanation:

The reaction is balanced as follows:

2Na + $Cl_{2}$ ------> 2NaCl

According to stoichiometry,

2 mole Sodium reacts with 1 mole Chlorine gas

∴1 mole Sodium reacts with 1/2 moles of Chlorine gas

∴1.4 mole sodium reacts with 1.4/2 moles of Chlorine gas

= 0.7 moles of Chlorine gas

So, 0.7 moles of Chlorine gas is required.

3 0

3 years ago

Calculate the molar mass of ammonium chloride

il63 [147K]

Answer:

53.491 g/mol

Explanation:

Create the chemical compound and find each individual element's molar mass. Lastly, add them up.

3 0

3 years ago