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Which of the following is an example of a chemical reaction?
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
What element is used to make the most widely used compound in the chemical industry?
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
Which of the following states that law of conservation of mass?
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
What are most of the elements in the periodic table?
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
Which of the following is NOT a sign of a chemical reaction?
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
What is the force that holds strong atoms together?
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
Which of the following is proof that a chemical reaction has occurred?
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
Chemical reactions are
sulfur
a chemical bond
metals
leaves changing color in the fall
a new substance with different properties is formed
state change
classified by the ways they are alike
mass cannot be created or destroyed in a chemical reaction
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