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What is the difference between a chemical and physical change?

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Using this image, tell me at least 3 things that you know by looking at the periodic table

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How do you know a chemical reaction is taking place? Provide evidence to support your ideas.

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it arranges elements into different categories

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a chemical reaction is when the substance puts of heat or smell

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The substance could start a fire or a new smell or there is smoke

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Chemical changes create new substances.
Physical changes keep the same substance.

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Its flammable, and gives of a smell.

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When the experiment starts bubbling, or changing colors, when the element reacts and forms a new substance

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In a chemical there could be a fire and in physical its still the same nothing changes

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The smell, seeing new substances being formed

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There are elements, metals, and gases

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The periodic table can show you the element, atomic mass, and atomic number

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You know a chemical reaction is taking place when it bubbles, smells, is flammable, or creates a new substance

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The element, the atomic mass the atomic number.

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A chemical change forms a news substance, a physical change changes the appearance

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c p chemical changes the substance a physical stays the same 

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c p chemical changes the substance a physical stays the same 

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A gas, light, and heat is being emitted from the fire. I know this because you can see smoke

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Gives off a smell and color changes

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If there is a color change, heat, sound, light, or gas released, then I know a chemical change occurred.

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There are nonmetals, metals, and metalloids

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There are flames, which is a form of a chemical reaction

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Chemical reactions give off a smell and have color changes. There may be smoke or bubbles.

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There are elements, some are metals, some are not metals

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Metals, nonmetals, and metaloids

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Chemical changes are creating a new substance and physical changes are not.

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New Substance

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The transition metals are in the middle, the each row is called a period, each column is called a group or a family.

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its changing colors

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There are metals, nonmetals, and metalloids, there are groups and periods, and there alkali and alkiline earth metals

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a chemical change can put off heat smell but a physical changes can just change size and color

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Chemical takes two substances, breaks them apart and then they form a new substance.

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The metals are in the middle. There are periods and groups

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A chemical change forms a new substance

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The difference between a chemical and physical change is that a chemical change creates new substances and a physical change makes new shapes different form like solid, liquid, gas.

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A new substance is formed in a chemical change and in a physical change the appearance is changed

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A chemical change forms a new substance, whereas a physical change doesn't form a new substance.

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During a chemical change, a new substance is formed. During a physical change, the substance just changes form.

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you know there is a chemical reaction if there is a heat or smell or color change

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there are non metals mataloids and metals

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chemical reactions give off heat and releases energy

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chemical reactions give off heat and releases energy

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a chemical change makes a new substance 

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a chemical change makes a new substance 

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if there is fire involved

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in achemical change het and light and smell is emmitted

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ii

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You can tell there is a chemical change, because gas can form and be released. Heat can also be released.

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you can tell a chemical reaction is happening because heat and l
ight are released.

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i know that there are mettaoids, and nonmetals, and also metals.

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metals and liquid and gasses

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4 groups, 7 periods, 18 groups

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there is a change in state like it becomes a gas

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there is a change in state like it becomes a gas

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4 groups 7 periods 18 groups

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When the substance is changing and it has a smell or change in color

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When the substance is changing and it has a smell or change in color

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Groups, Periods, families.

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there are different areas of the table there are different groups and different families

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there are different areas of the table there are different groups and different families

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chemical is like a gas and physical is change in color

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chemical is like a gas and physical is change in color

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Chemical change the substance changes in a physical change the substance doesn't change

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Chemical change the substance changes in a physical change the substance doesn't change

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one changes the chemical compounds one changes the physical form

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Chemical Change is when the objects chemical compound changes. Physical Change is when the color, or image looks different.

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chemical change is when its chemically combined and physical change is when u physically change it

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chemical change is when its chemically combined and physical change is when u physically change it

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chemical change is when it completely changes and cant be fixed and physical change is when it changes but still is the same thing

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chemicao change

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something is changed and something stays the same.

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chemical is fire and physical is like you do it

a chemical reacon is taking place because thats how it forms

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Physical: Change of appearance
Chemical: Change of substance

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In a physical change the reaction doesnt change. in a chemical change the reaction does change.

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can show the element and the atomic number and the mass number