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WorksheetsChapter 15 Big Review
Total questions: 68
Worksheet time: 55mins
In which mixture can you see all of the parts?
homogeneous
heterogeneous
In which mixture can you not see all of the parts?
homogeneous
heterogeneous
Identify which images are HETEROGENEOUS MIXTURES! (Check all that apply)
A material with a set chemical makeup - every sample will be made up the same way.
mixture
pure substance
element
compound
Water dyed with food coloring is what type of mixture?
homogeneous mixture
heterogeneous mixture
Substances in a mixture can be separated by physical methods.
TRUE
FALSE
What type of mixture is a salad?
Heterogeneous
Homogeneous
Colloid
Suspension
Colloid
Type of mixture that will scatter light.
Suspension
Type of mixture where a solid will settle to the bottom.
Heterogeneous
Type of mixture where the pieces can be told apart.
Homogeneous
Type of mixture where the pieces are thoroughly mixed.
What type of mixture has solid particles that will settle to the bottom?
Heterogeneous
Homogeneous
Colloid
Suspension
What type of mixture has particles that will scatter a beam of light?
Heterogeneous
Homogeneous
Colloid
Suspension
A material with a variable composition - just a physical combination of multiple substances.
mixture
pure substance
element
compound
A material made up of only one type of atom.
mixture
pure substance
element
compound
A material made up of multiple atoms combined chemically.
mixture
pure substance
element
compound
Can be found on the periodic table. (Select all that apply.)
mixture
pure substance
element
compound
A material where the makeup does not have a set proportion or composition - can vary from sample to sample.
mixture
pure substance
element
compound
Can be separated by physical means, like filtration.
mixture
pure substance
element
compound
Mixture
Dirt
Element
Carbon
Compound
Carbon dioxide
Mixture
chocolate chip cookies
Element
hydrogen
Compound
water
Mixture
air
Element
gold
Compound
hydrogen peroxide
A bottle of orange juice says "shake well before drinking."
What type of mixture does this imply the orange juice is?
Homogeneous
Colloid
Suspension
A slow-moving stream has a layer of silt and dirt on the bottom of it that gets kicked up when you walk through.
What type of mixture is the dirty stream water?
Homogeneous
Colloid
Suspension
You, a secret super spy, spray something in the air so you can see the invisible laser grid protecting the building you're breaking into.
What type of mixture did you make?
Homogeneous
Colloid
Suspension
When you drive through the fog, your headlights get caught in the fog and can make it hard to see.
What type of mixture is fog?
Homogeneous
Colloid
Suspension
When you mix salt and water, the salt dissolves so thoroughly you can't see it any more.
What type of mixture is salt water?
Homogeneous
Colloid
Suspension
Salt is made when sodium and chlorine chemically combine.
It is represented by the formula NaCl.
Is salt a compound, an element, or a mixture?
Compound
Element
Mixture
Water is split into hydrogen and oxygen through a chemical process called electrolysis.
Is water a compound, an element, or a mixture?
Compound
Element
Mixture
Water is split into hydrogen and oxygen through a chemical process called electrolysis.
Are hydrogen and oxygen a compound, an element, or a mixture?
Compound
Element
Mixture
Sodium bicarbonate decomposes into sodium carbonate, carbon dioxide, and water.
Is carbon dioxide a compound, an element, or a mixture?
Compound
Element
Mixture
What type of property can be observed without changing the chemical composition of a substance?
Physical Property
Chemical Property
What type of property involves how a substance reacts with or changes to another substance?
Physical Property
Chemical Property
What type of property is a substance's flammability?
Physical Property
Chemical Property
Iron is able to rust.
What type of property is that?
Physical Property
Chemical Property
Iron is able to be rolled into thin sheets - it is malleable.
What type of property is that?
Physical Property
Chemical Property
Water is liquid at room temperature.
What type of property is that?
Physical Property
Chemical Property
When coffee is filtered, the grounds are too big to fit through the filter paper.
What type of property is that?
Physical Property
Chemical Property
Salt is able to dissolve in water.
What type of property is that?
Physical Property
Chemical Property
Sodium catches on fire and can explode when it touches water.
What type of property is that?
Physical Property
Chemical Property
What type of change does NOT change the substance to a new substance?
Physical change
Chemical change
What type of change leaves you with a new substance?
Physical change
Chemical change
What type of change can ONLY change physical properties?
Physical change
Chemical change
What type of change can separate or create a mixture?
Physical change
Chemical change
What type of change can change chemical properties?
Physical change
Chemical change
What type of change is cutting something in half?
Physical change
Chemical change
What type of change is crumpling something up?
Physical change
Chemical change
What type of change is sanding the surface of something?
Physical change
Chemical change
What type of change is something burning?
Physical change
Chemical change
What type of change is something rusting?
Physical change
Chemical change
What type of change is something rotting?
Physical change
Chemical change
What type of change is something boiling?
Physical change
Chemical change
What type of change is something freezing?
Physical change
Chemical change
What type of change is something melting?
Physical change
Chemical change
What type of change is something dissolving?
Physical change
Chemical change
What type of change is involved in baking?
Physical change
Chemical change
What do we call the substances we have BEFORE a reaction happens?
Reactants
Products
Pure Substance
Mixture
What do we call the substances we have after a reaction happens?
Reactants
Products
Pure Substance
Mixture
Hydrogen and oxygen gas combines to form water.
What are the reactants in this situation? Choose all that apply.
Hydrogen
Oxygen
Water
Hydrogen and oxygen gas combines to form water.
What are the products in this situation? Choose all that apply.
Hydrogen
Oxygen
Water
20 grams of sodium combine with 10 grams of chlorine to form sodium chloride.
What are the products in this situation? Choose all that apply.
Sodium
Chlorine
Sodium Chloride
20 grams of sodium combine with 10 grams of chlorine to form sodium chloride.
What are the reactants in this situation? Choose all that apply.
Sodium
Chlorine
Sodium Chloride
20 grams of sodium combine with 10 grams of chlorine to form sodium chloride.
What is the mass of sodium chloride produced?
In a reaction A + B ----> C, reactant A has 5g and product C has 9g. How many grams of reactant B should we have?
Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. Assuming nothing leaves the glass, if Anthony weighs the water and baking soda solution, what will its mass be?
A student heated a 10 gram sample of a chemical in an open container. A chemical reaction occurred, and the mass of the sample was measured again. The mass of the sample was found to be less than before the reaction. Which of the following best explains the decrease in mass of the sample?
The heat caused the chemical to become less dense.
The reaction gave off more heat than was added.
Some of the lighter particles were destroyed.
Some of the particles escaped as a gas formed.
A student pours 5.49 g hydrochloric acid (HCl) into an open beaker that contains a piece of magnesium (Mg). The Total mass of the product is 5.73 g. What was the mass of the magnesium?
5.71 g
11.22 g
0.24 g
20 grams of iron combine with some amount of oxygen to form 22.5 grams of rust.
What are the products in this situation? Choose all that apply.
Iron
Oxygen
Rust
20 grams of iron combine with some amount of oxygen to form 22.5 grams of rust.
What are the reactants in this situation? Choose all that apply.
Iron
Oxygen
Rust
20 grams of iron combine with some amount of oxygen to form 22.5 grams of rust.
What is the mass of oxygen?
