What happens in an Endothermic reaction?

The temperature of the substance stays the same

What happens in an Exothermic reaction?

The substance's temperature stays the same

What is true of this reaction?

The reaction absorbed more energy than it released

Equal amounts of energy were released and absorbed

The reaction released more energy than it absorbed

What is true of the reaction described below? Br 2 + Cl 2 + 30.0 J of energy → 2BrCl

It is endothermic because energy is absorbed.

It is exothermic because energy was released.

It is exothermic because energy is absorbed.

It is endothermic because energy is released.

Sydnee mixes a solution of baking soda and water. The initial temperature of the solution is 22⁰C. She adds 10mL of vinegar and takes the temperature again. The final temperature is 17⁰C. Which of the following is true?

The reaction lost heat to the environment.

Which of the following statesments explains the law of conservation of energy?

In a chemical reaction, energy is neither created nor destroyed, but can change form

Energy is needed to break chemical bonds

An exothermic reactions releases energy

Light energy is released by some exothermic reactions

What is the activation energy?

The minimum energy needed by the reactants to form the products.

The energy lost in the reaction

EXOTHERMIC AND ENDOTHERMIC REACTIONS

Authored by Caleb Ado

Chemistry

10th Grade

NGSS covered

Used 387+ times

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30 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

In an exothermic reaction, heat is ...

taken in

given out

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In an endothermic reaction, heat is

taken in

given out

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of reaction occurs in a hand warmer ?

exothermic

endothermic

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Baking bread and cooking an egg are examples of....?

Endothermic processes

Exothermic processess

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a chemical reaction is EXOTHERMIC, the temperature would....

Stay the same

Increase

Decrease

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In an endothermic reaction the system is releasing energy.

True

False

Tags

NGSS.HS-PS1-4

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Is the combustion of gasoline endothermic or exothermic?

Endothermic

Exothermic

Tags

NGSS.HS-PS1-4

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EXOTHERMIC AND ENDOTHERMIC REACTIONS

In an exothermic reaction, heat is ...

In an endothermic reaction, heat is

What type of reaction occurs in a hand warmer ?

Baking bread and cooking an egg are examples of....?

If a chemical reaction is EXOTHERMIC, the temperature would....

In an endothermic reaction the system is releasing energy.

Is the combustion of gasoline endothermic or exothermic?

Do reactants in an endothermic reaction have a higher or lower energy than the products?

Do the reactants in an exothermic reaction have a higher or lower energy than the products?

During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______.

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