Intro to Thermo Chemistry
Authored by Charles Martinez
Chemistry
10th Grade
NGSS covered
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is meant by HEAT OF REACTION?
Energy change in a chemical reaction
Energy absorbed in a chemical reaction
Energy released in a chemical reaction
Energy required in a chemical reaction
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What is the sign of ΔH for endothermic reaction?
positive
negative
Tags
NGSS.HS-PS1-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Based on the diagram, Heat energy is ___________ to the surrounding.
releases
absorbs
Tags
NGSS.HS-PS1-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Based on the diagram, which of the following is true?
The reaction is endothermic
Thermometer reading increases
The heat energy is absorbed from surrounding
Tags
NGSS.HS-PS1-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
The reaction between calcium nitrate solution and sodium carbonate solution is endothermic. Which of the following represents this reaction?
Tags
NGSS.HS-PS1-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Based on the diagram, total energy content of the products is _________ than total energy of the reactants.
less
more
Tags
NGSS.HS-PS1-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
During a chemical reaction, chemical bonds of the reactants are __________ and new bonds in the products are ___________.
formed, broken
broken, formed
formed, formed
broken, broken
Tags
NGSS.HS-PS1-7
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