Structure and Properties of Matter - Middle School Physical Science
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A molecule is:
A molecule is:
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A molecule is defined as a group of any two atoms. When looking at a substance, this classification can be combined with element, compound, or mixture, but not with "an atom." So you can have a molecule of an element, a molecule of a compound, or several molecules of different varieties which create a mixture.
A molecule is defined as a group of any two atoms. When looking at a substance, this classification can be combined with element, compound, or mixture, but not with "an atom." So you can have a molecule of an element, a molecule of a compound, or several molecules of different varieties which create a mixture.
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An element is:
An element is:
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A molecule is defined as a group of a the same kind of atom. When looking at a substance, this classification can be combined with either atoms or molecules. So you can have either an atom of an element, or molecule of an element- as long as there is only one type of atom present. If there is more than one kind of atom present, then you have either a compound, or a mixture.
A molecule is defined as a group of a the same kind of atom. When looking at a substance, this classification can be combined with either atoms or molecules. So you can have either an atom of an element, or molecule of an element- as long as there is only one type of atom present. If there is more than one kind of atom present, then you have either a compound, or a mixture.
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"NaCl" is the chemical symbol for salt. Salt is an example of:
"NaCl" is the chemical symbol for salt. Salt is an example of:
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Salt is a compound because it has more than one type of element. Na is the chemical symbol for Sodium. and Cl is the chemical symbol for Chlorine. These elements are bonded together to form a compound, Sodium Chloride.
Salt is a compound because it has more than one type of element. Na is the chemical symbol for Sodium. and Cl is the chemical symbol for Chlorine. These elements are bonded together to form a compound, Sodium Chloride.
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"H" or "Hydrogen" is an example of:
"H" or "Hydrogen" is an example of:
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Hydrogen is an element with the atomic number 1. You can find Hydrogen on the periodic table.
Hydrogen is an element with the atomic number 1. You can find Hydrogen on the periodic table.
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A mixture is:
A mixture is:
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A mixture is a group of different atoms or molecules. Mixtures contain several elements that are not bonded together.
A mixture is a group of different atoms or molecules. Mixtures contain several elements that are not bonded together.
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Carla is working on a science project using several different household materials. She has a bowl of sugar, a glass of milk, a handful of rocks, and a few coins. While she is not looking, her younger sister pours all of her materials into a a bowl together and stirs them up. The sugar dissolves in the milk, but everything else stays the same. What did Carla's sister create?
Carla is working on a science project using several different household materials. She has a bowl of sugar, a glass of milk, a handful of rocks, and a few coins. While she is not looking, her younger sister pours all of her materials into a a bowl together and stirs them up. The sugar dissolves in the milk, but everything else stays the same. What did Carla's sister create?
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Carla's sister made a mixture because these items are different compounds and will not combine chemically. Even though the sugar dissolves into the milk, the solution is not the result of a chemical reaction.
Carla's sister made a mixture because these items are different compounds and will not combine chemically. Even though the sugar dissolves into the milk, the solution is not the result of a chemical reaction.
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An atom is
An atom is
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Atoms are defined as the smallest unit of matter. They make up everything that takes up space, whether it is living or nonliving. A molecule is more than one atom combined, and therefore is not the same as a single atom. Energy is not made of atoms because it does not take up space.
Atoms are defined as the smallest unit of matter. They make up everything that takes up space, whether it is living or nonliving. A molecule is more than one atom combined, and therefore is not the same as a single atom. Energy is not made of atoms because it does not take up space.
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Where are the protons and neutrons located in an atom?
Where are the protons and neutrons located in an atom?
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Atoms are made of smaller particles called protons, neutrons, and electrons. Protons and neutrons exist in the atom's nucleus, while electrons exist in the electron cloud. The answer is not cells because cells are a building block of organisms and are made of atoms.
Atoms are made of smaller particles called protons, neutrons, and electrons. Protons and neutrons exist in the atom's nucleus, while electrons exist in the electron cloud. The answer is not cells because cells are a building block of organisms and are made of atoms.
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Which answer choice is the smallest?
Which answer choice is the smallest?
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Electrons are the smallest. An atom is made of smaller particles called protons, neutrons and electrons. Protons and Neutrons are roughly the same size and have a mass of one amu (atomic mass unit). Electrons are much smaller and have a mass of 0 amu.
Electrons are the smallest. An atom is made of smaller particles called protons, neutrons and electrons. Protons and Neutrons are roughly the same size and have a mass of one amu (atomic mass unit). Electrons are much smaller and have a mass of 0 amu.
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What is the overall charge of the atom in the image shown?
What is the overall charge of the atom in the image shown?
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The overall charge of the atom is neutral. The atom has two positively charged protons and two negatively charged electrons which result in a net charge of zero. The neutron does not have a charge.
The overall charge of the atom is neutral. The atom has two positively charged protons and two negatively charged electrons which result in a net charge of zero. The neutron does not have a charge.
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Which answer choice is the smallest?
Which answer choice is the smallest?
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Atoms are the smallest. Molecules are two or more atoms. Elements are many of the same type of atom. Cells are often referred to as "the smallest unit of life" because all living things are made of cells. However, cells are made of smaller particles like atoms and molecules as well.
Atoms are the smallest. Molecules are two or more atoms. Elements are many of the same type of atom. Cells are often referred to as "the smallest unit of life" because all living things are made of cells. However, cells are made of smaller particles like atoms and molecules as well.
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In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together
Given this information, this image represents:
In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together
Given this information, this image represents:
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The answer is “a compound.” Compounds are groups of atoms of two or more elements. The image cannot be a single element because there is more than one type of atom present. The image cannot be a mixture because there is only one kind of molecule present. The image cannot be a single molecule because each group of atoms is a molecule.
The answer is “a compound.” Compounds are groups of atoms of two or more elements. The image cannot be a single element because there is more than one type of atom present. The image cannot be a mixture because there is only one kind of molecule present. The image cannot be a single molecule because each group of atoms is a molecule.
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In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together.
Given this information, this image represents:
In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together.
Given this information, this image represents:
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The answer is “an element.” This image is an element because there is only one kind of atom present.
The answer is “an element.” This image is an element because there is only one kind of atom present.
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In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together.
Given this information, this image represents:
In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together.
Given this information, this image represents:
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The answer is “an element.” This image is an element because there is only one kind of atom present. Even though the atoms are bonded in molecules, there is still only one kind of atom in the image. Therefore, it could not be a compound or a mixture.
The answer is “an element.” This image is an element because there is only one kind of atom present. Even though the atoms are bonded in molecules, there is still only one kind of atom in the image. Therefore, it could not be a compound or a mixture.
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In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together.
Given this information, this image represents:
In the image, each circle represents an atom. Each different color of atom represents a different type of atom, and if two atoms are touching they are bonded together.
Given this information, this image represents:
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The answer is “a mixture.” In this image we can see at least two types of atoms, so we know there is more than one element. The molecules in this image come in at least two varieties, so there must be at least two different compounds - meaning that this is a mixture.
The answer is “a mixture.” In this image we can see at least two types of atoms, so we know there is more than one element. The molecules in this image come in at least two varieties, so there must be at least two different compounds - meaning that this is a mixture.
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Which answer choice is NOT part of an atom?
Which answer choice is NOT part of an atom?
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Atoms are made of smaller particles called protons, neutrons, and electrons. Protons and neutrons exist in the atom's nucleus, while electrons exist in the electron cloud. The answer is not cells because cells are a building block of organisms and are made of atoms.
Atoms are made of smaller particles called protons, neutrons, and electrons. Protons and neutrons exist in the atom's nucleus, while electrons exist in the electron cloud. The answer is not cells because cells are a building block of organisms and are made of atoms.
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The atomic number of an atom is equal to the number of in an atom.
The atomic number of an atom is equal to the number of in an atom.
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The atomic number of an atom is equal to the number of protons in an atom. If the number of protons changes, it is a different element and therefore has a different atomic number.
The atomic number of an atom is equal to the number of protons in an atom. If the number of protons changes, it is a different element and therefore has a different atomic number.
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Protons have what kind of charge?
Protons have what kind of charge?
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The answer is positive.
Protons have a positive charge.
Neutrons have a neutral charge.
Electrons have a negative charge.
The answer is positive.
Protons have a positive charge.
Neutrons have a neutral charge.
Electrons have a negative charge.
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Neutrons have what kind of charge?
Neutrons have what kind of charge?
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The answer is neutral.
Protons have a positive charge.
Neutrons have a neutral charge.
Electrons have a negative charge.
The answer is neutral.
Protons have a positive charge.
Neutrons have a neutral charge.
Electrons have a negative charge.
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Electrons have what kind of charge?
Electrons have what kind of charge?
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The answer is negative.
Protons have a positive charge.
Neutrons have a neutral charge.
Electrons have a negative charge.
The answer is negative.
Protons have a positive charge.
Neutrons have a neutral charge.
Electrons have a negative charge.
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