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Salt and water are stirred together in a beaker. The solid salt particles seem to disappear in the water. Which is the best explanation for the product that is formed?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
Which is a substance that is held together by chemical bonds?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
Which of these best describes a change that is physical?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
Which of the following describes the relationship of atoms best?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
Which of the following has a negative charge?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
Which could best be separated into simpler substances by filtration and evaporation?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
Which is a homogeneous mixture?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
Which best describes a heterogeneous mixture?
concrete
electrons
A solution has been created.
yarn being knitted into a sweater
compound
mixture
It contains two or more types of particles which are easily distinguished.
Everything in the Universe is made of atoms.
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