Stoichiometry Diagram

The blue numbers in the image below represent ________

• I don't know, and don't want to try

• coefficients

• subscripts

• none of the answers are correct

Tags

NGSS.HS-PS1-7

Identify the limiting and excess reactants in the reaction shown.

• N₂ is limiting and H₂ is excess. 

• H₂ is limiting and N₂ is excess. 

• NH₃ is both limiting and excess.

• There is no limiting reactant. 

Tags

NGSS.HS-PS1-7

What is the stoichiometric coefficient of oxygen in the balanced equation for the combustion of methane: @@ ext{CH}_4 + ext{O}_2 ightarrow ext{CO}_2 + ext{H}_2 ext{O}@@?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

In a stoichiometry diagram, which of the following represents the mole ratio of hydrogen to oxygen in water?

• 1:1

• 2:1

• 1:2

• 2:2

Which of the following best describes stoichiometry?

• The study of the speed of chemical reactions

• The calculation of reactants and products in chemical reactions

• The study of energy changes in chemical reactions

• The study of chemical reaction mechanisms

Tags

NGSS.HS-PS1-7

In a stoichiometry diagram, if 2 moles of hydrogen react with 1 mole of oxygen, how many moles of water are produced?

• 1 mole

• 2 moles

• 3 moles

• 4 moles

Tags

NGSS.HS-PS1-7

What is the purpose of a stoichiometry diagram in chemical reactions?

• To visualize the energy changes

• To calculate the limiting reactant

• To balance chemical equations

• To determine the reaction rate

Tags

NGSS.HS-PS1-7

In the reaction @@ ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3@@, what is the stoichiometric coefficient of hydrogen?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-7

Which of the following is a real-world application of stoichiometry?

• Predicting weather patterns

• Designing chemical reactors

• Calculating the dosage of medication

• Measuring the speed of light

In a stoichiometry diagram, what does the term 'limiting reactant' refer to?

• The reactant that is left over after the reaction

• The reactant that determines the amount of product formed

• The reactant that speeds up the reaction

• The reactant that slows down the reaction