Grade 10 · Science · Chemistry

10th grade Predict how an equilibrium shifts worksheet

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Predict how an equilibrium shifts

Grade 10 Science Worksheet - Building Confidence

NameDate

Circle the best answer, or write your answer on the line.

Removing ammonia shifts N₂ + 3 H₂ ⇌ 2 NH₃ to the right, and 1.6 mol of new NH₃ forms. How many moles of N₂ are used, Bo?
Removing ammonia shifts N₂ + 3 H₂ ⇌ 2 NH₃ to the right, and 3 mol of new NH₃ forms. How many moles of N₂ are used, Esme?
3.
Using the graph, what change was made at 30 s, Jun?
- N₂ was added
- H₂ was removed
- NH₃ was added
4.
Using the graph, does N₂ fall back to 0.50 mol/L, Luz?
Use the picture in question 3.
- Yes: back to 0.50
- No: it rises to 1.26
- No: it settles at 0.72
5.
What does Le Châtelier's principle say an equilibrium does when it is changed, Milo?
- It stops reacting
- It shifts to ease the change
- It stays exactly the same as before
6.
A reactant is added to an equilibrium. Which way does it shift, Noah?
- It does not shift
- Toward the products
- Toward the reactants
7.
A product is removed from an equilibrium. Which way does it shift, Pia?
- It stops completely
- Toward the products
- Toward the reactants
8.
For an exothermic reaction, heat is treated like which part of the equation, Ren?
- A product
- A catalyst
- A reactant
9.
An exothermic reaction is heated. Which way does it shift, Tala?
- Toward the reactants
- It does not shift
- Toward the products side
10.
Does adding a catalyst shift an equilibrium, Zee?
- No: it speeds both ways equally
- Yes: toward the products
- Yes: toward the reactants

Predict how an equilibrium shifts. Every version has 10 questions, and the answer key prints on the second page.

I can use Le Châtelier's principle: an equilibrium shifts to ease a change.
I can predict shifts for added or removed substances, pressure (gas moles) and temperature (heat as reactant or product).
I can say a catalyst speeds the approach but doesn't shift the equilibrium.
I can choose changes that raise the yield of ammonia, as HS-PS1-6 asks, and explain the ammonia process's trade-off.

Standard: HS-PS1-6

Le Châtelier's principle: A changed equilibrium shifts to ease the change

shift right: Toward the products

gas moles: The total coefficients of gases on one side

yield: How much product is made

ammonia process: Making NH₃ from N₂ and H₂ (Haber–Bosch)

Your child multiplied by 2. Each N₂ makes two NH₃, so the N₂ needed is the NH₃ amount divided by 2.

Your child used the 3 in front of H₂ but not the 2 in front of NH₃. Three H₂ make two NH₃.

Your child divided the new volume by the old. Squeezing a gas into less space raises its pressure by old volume ÷ new volume.

What is the most common mistake with predict how an equilibrium shifts?

Your child multiplied by 2. Each N₂ makes two NH₃, so the N₂ needed is the NH₃ amount divided by 2.

Are these 10th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

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