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Which of the following would cause a chemical change in a piece of wood?
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
Which of these is not evidence that a chemical change may have taken place?
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
Which process represents a chemical change?
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
Elements in the same column of the periodic table have
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
Which of the following statements about elements is false?
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
Which of these is a physical change?
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
If you heat a liquid to determine the temperature at which it forms bubbles and changes to a gas, you are measuring
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
According to the law of conservation of mass, which of these statements is true?
a physical property called boiling point
An element is made up of compounds
burning the wood
change in shape
melting
similar chemical properties
The mass of the reactants in a chemical reaction equals the mass of the products
corrosion of iron
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