Row 1
Which of the following is a chemical change?
Ice Melting, Ice being carved, water boiling, or water breaking down into hydrogen and oxygen
water breaking down into hydrogen and oxygen
Which of the following is malleable?
glass, pottery, ice, and gold
Gold
Which of the following is evidence of a chemical change?
Iron changes color when heated, gas bubbles form in boiling water, balls, of wax form when melted wax is poured into ice water, or a gas forms when vinegar and baking soda are mixed.
a gas forms when vinegar and baking soda are mixed.
Which of the following is a heterogeneous mixture?
Water in a swimming pool, sugar water, a jar of mixed nuts, or stainless steel
a jar of mixed nuts
Which of the following is NOT a clue that a chemical change has occurred?
change in color, production of a gas, formation of a precipitate, or change in shape
Change in Shape
A mixture can be classified as a solution, suspension, or colloid based on the ____________.
size of its largest particles.
sawing a piece of wood in half, burning a piece of wood, rust forming on an iron fence or a copper roof changing color from red to green
sawing a piece of wood in half
Water is a compound because it ______________.
can be broken down into hydrogen and oxygen, has a fixed composition, or all of the above.
All of the above
Flammability is a material's ability to burn in the presence of
Oxygen
A mixture that appears to contain only one substance is a(an)
homogeneous mixture
A material that is malleable and conducts electricity is most likely ____________
a metal
If an unknown substance CANNOT be broken down into simpler substance, it is ______________.
an element, made of one kind of atom, or all of the above
All of the above
Filtration can be used to separate mixtures based on
the size of their particles
Which of the following is a mixture?
carbon dioxide, silicon, silicon dioxide, or sand
Sand
Which of the following has the highest viscosity?
corn syrup, milk, water, orange juice
corn syrup
Which of the following are pure substances?
solutions, compounds, homogeneous mixtures, colloids
Compounds
A substance has a melting point of 00C and a boiling point of 1000C. The substance is most likely.
Water
A substance that is made up of only one kind of atom is a(an)
Element
You are about to open a container of soy milk but notice that there are instructions to "shake well before serving." The soy milk is most likely a __________
solution, pure substance, colloid, or a suspension
Suspension
Which of the following is NOT a pure substance?
milk, oxygen, water, carbon dioxide
Milk