Matter Question Preview (ID: 43593)


Phase Changes, Mixtures And Solutions.[print questions]

When 2 substances are mixed to make a a new substance, the result is called a
a) solution
b) mixture
c) compound
d) solid

What is formed when you dissolve one substance (the solute) into another substance (the solvent), and they mix evenly and appear to be one, even though they can indeed be separated back out?
a) a compound
b) a solution
c) a cell
d) a molecutle

When you mix sugar with water, does it create a mixture or a new compound?
a) a new compound
b) neither
c) both
d) a mixture

When you mix vinegar with baking soda, what does it form?
a) a new compound
b) a mixture
c) both
d) neither

In a ________, the result still consists of the original substance.
a) new compound
b) mixture
c) solid
d) liquid

A solid will dissolve in a liquid faster if the particles of the solid are _______.
a) a color
b) larger
c) heavy
d) smaller

Which of these is true about the rate of dissolving?
a) Stirring increases the rate of dissolving.
b) Stirring decreases the rate of dissolving.
c) Stirring has no affect on dissolving.
d) Stirring always creates a new substance.

Which is true about temperature and the rate of dissolving?
a) The lower the temperature, the faster the rate of dissolving
b) The higher the temperature, the faster the rate of dissolving.
c) Temperature has no affect on the rate of dissolving.
d) Matter can only dissolve if the temperature of the solvent is over 100 degrees Celsius.

The mass of a sugar cube and glass of water before and after dissolving the sugar cube in the water _____.
a) would be different.
b) would go up.
c) would go down.
d) would stay the same.

In studying the effect of temperature on dissolving sugar, equal amounts of sugar must be used, _______.
a) so that you have multiple independent variables.
b) so that it will dissolve.
c) so the test is fair and only 1 thing (the temp) is changed.
d) so that it will change states.

Mixing vinegar and baking soda creates a chemical reaction that produces carbon dioxide which is _______.
a) a new substance
b) a mixture
c) a liquid
d) a solid

The Law of Conservation of Mass states that the
a) mass of objects is constantly changing.
b) mass of objects never changes. The parts just rearrange.
c) mass of objects goes up when matter changes states.
d) mass of objects goes down when matter changes states.

When you drop antacid tablets into water, the fizzing and bubbling is a clue that _____.
a) a gas was created during the CHEMICAL change.
b) a gas was created during the PHYSICAL change.
c) more liquid was created.
d) the water is evaporating.

When dropping antacid tablets into a glass of water, the tablets don't vanish, they _______.
a) settle at the bottom and stay there
b) duplicate themselves until the glass is full
c) float to the top
d) dissolve and mix evenly with the water

When you mix salt or sugar with water, it does not vanish. Instead, it ______ and forms a solution.
a) evaporates
b) multiplies
c) dissolves
d) condensates

The temperature of ice water will remain (near) _______until all of the ice has melted.
a) 0 degrees Celsius
b) 100 degrees Celsius
c) 50 degrees Celsius
d) 125 degrees Celsius

Water has a characteristic boiling point of ______.
a) 0 degrees Celsius
b) 100 degrees Celsius
c) 50 degrees Celsius
d) 125 degrees Celsius

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