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Chemistry

Authored by Krisshivarshan T

Chemistry

10th - 12th Grade

Used 3+ times

Chemistry
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What eventually happens to a gas if its pressure is increased?


Topic : State Of Matter

It condenses

It evaporates

It melts

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following processes is endothermic?


Topic : Chemical Reaction

Bonds being broken in the reactants

Bonds being made in the products

Any combustion reaction

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What term is given to a reaction which transfers heat energy to the surroundings?


Topic : Chemical reaction

Endothermic

Reversible

Exothermic

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the energy change on an energy level diagram is negative, what does this tell you about the reaction?


Topic : Chemical reaction

It is endothermic

Nothing

It is exothermic

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

On a reaction profile, what does the height of the hump represent?


Topic : Chemical reaction

The activation energy

The energy change

The energy released when new bonds are made

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which word best describes magnesium oxide?


Topic : Oxide

Acid

Fuel

Base

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hydrogen reacts with oxygen to produce water: H2 + 2O2 → 2H2O. What is the maximum mass of oxygen that will react with 6.0 g of hydrogen? (Relative formula masses: H2 = 2.0, O2 = 32.0)


Topic: Avogadro constant

48.0 g

64.0 g

96.0 g

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