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a physical blend between two or more substances mixture
the change of two or more substances into a new substance chemical reaction
the amount of matter that an object contains mass
a homogenus mixture a solution
the simplest form of matter element
anything that takes up space and has mass matter
matter that takes up space and volume gas
matter that has uniform and definite composition substance
another name for a homogenus mixture is: element
the chemical symbol for chlorine is: CL
a physical property is: a characteristic of a substance that can be observed or measured without changing the identity of the substance.
some physical properties are.... color, density, boiling and freezing point, odor.
a chemical property is: a characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed.
some chemical properties are... flammability, toxicity, reactivity, heat of combustion.
the state of matter who's particles are packed together tightly is... a solid.
At room temperature, which is typically in a physical state different from that of the other three? (milk, orange juice, water, oxygen) oxygen.
which term does not fit with the others listed? (ice, salt, steam, water) salt (the rest are in a reversible change cycle)
which of the following is an example of a physical change? (toasting bread, digesting a banana, cooking a hamburger, melting butter) melting butter
out of the following, an example of a heterogeneous mixture would be... (sugar, salt water, tap water, vegetable soup) vegetable soup.
which of the following is a compound? (carbon, hydrogen, oxygen, water) water
Iron is an example of a(n)... (element, heterogeneous mixture, compound, homogeneous mixture) element.
The element whose chemical symbol is C is... (calcium, copper, carbon, chlorine) carbon.
which of the following events can best distinguish a physical change from a chemical change? (energy is absorbed or released, gas is produced, a different chemical composition, mass is conserved) different chemical composition.
Which of the following is an example of a chemical change? (cooking meat, dissolving sugar in iced tea, slicing cheese, freezing water) cooking meat.
in a chemical reaction, mass is created nor destroyed; it is conserved. true.
dissolving salt in water is a chemical change. false.
chemical changes are not easily reversed. true.
most physical changes cannot be reversed. false.
elements can be separated into simpler substances. false.
energy is absorbed and or released in chemical reactions. true.
a form of matter that flows, has a fixed volume, and takes the shape of its container. liquid.
a gaseous substance that is generally a liquid or solid at room temperature. vapor.
a toasted greens salad is an example of a _______ mixture. homogenus.
the chemical symbol for aluminum is... Al.
in chemical reactions, the starting substance is called... a reactant.
the burning of wood is a ____ change. chemical.
water evaporation is a ____ change. physical.
any matter that has a uniform and definite composition is... a substance.
a liquid is a form of matter that... flows.
an example of a non-physical property of water would be... separation into hydrogen and oxygen.
is table salt a substance or a mixture? mixture.
in a chemical change, the mass of the reactant equals the mass of the products. true.
in the chemical reaction "sodium + chloride = sodium chloride", sodium and chloride are both... reactants.
an arrow in chemistry represents... a chemical reaction taking place.
mixtures are a ____ of two or more substances. combination.
the simplest forms of matter are called... elements.
the composition of heterogenus and homogenus mixtures may... vary.
the formula for potassium hydroxide is KOH. it containts the elements... potassium, hydrogen, oxygen.
Created by: vivaLAHvida
 

 



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