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What is true about the kinds of matter present before and after that matter undergoes a physical change?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
How does heating an object cause a chemical change?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
If I put a bunch of ice cubes into a glass of water and mark the level of the water, what observation would be made as we watch the ice melt?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
Which types of changes follow the law of conservation of mass?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
Which of the following scientists made the biggest contributions to the law of conservation of mass?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
How do you know when a chemical change has occured?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
Which of the following is NOT an example of a physical change?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
When paper is burned, the mass of the remaining ash is less than the mass of the original paper. Which statement best explains this result?
Milk souring
Some of the products of the reaction were given off as a gas.
A precipitate forms.
Both physical and chemical changes
It causes new bonds to form between molecules.
The kinds of matter are the same.
The water level will stay the same.
Antoine Lavoisier
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