PS 5 Changes In Matter: Question Preview (ID: 26934)


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What is an example of a physical change?
a) Adding bleach to a washer of clothes
b) boiling point
c) rusting iron
d) eating and digesting food

What is NOT an example of a physical property?
a) flammability
b) boiling point
c) color
d) texture

Which is NOT an example of a physical change?
a) bending copper wire
b) souring milk
c) molding clay
d) chopping wood

What is NOT a physical change?
a) vaporizing cheese ie beyond boiling but it's still cheese
b) freezing cheese
c) melting cheese
d) burning cheese

When matter undergoes a change in form, but the chemical make up is NOT changed, it is a
a) chemical change
b) physical change
c) nuclear change
d) chemical reaction

What is an example of an exothermic reaction?
a) grilling chicken
b) baking cake
c) exploding fireworks
d) popcorn popping

What is an example of an endothermic reaction?
a) burning coals
b) smouldering coals...they are almost out
c) grilling a hamburger
d) exploding fireworks

Atoms on the left side of the arrow in a chemical equation are the
a) subscripts
b) reactants
c) products
d) coefficients

Atoms on the right side of the arrow in a chemical equation are the
a) subscripts
b) reactants
c) products
d) coefficients

Which process do hydrogen atoms use to make the Sun’s energy?
a) nuclear fission
b) nuclear meltdown
c) meltdown isotope
d) nuclear fusion

Which process is used by nuclear power plants to produce energy?
a) nuclear fission
b) nuclear meltdown
c) nuclear isotope
d) nuclear fusion

Due to the Law of Conservation of Matter (Mass) chemical reactions must be balanced by changing
a) superscripts in the formula
b) where the arrow is placed
c) coefficients in front of the formulas
d) subscripts in the formulas

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