Final Exam Review Question Preview (ID: 40428)
Fall Review.
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Which is NOT evidence of chemical change?
a) vinegar added to baking soda and make bubbles
b) steam produced when water is boiling
c) precipitate formed from mixing 2 liquids
d) paper turning into ashes after burning
Which of the following is evidence of chemical change?
a) two liquids are mixed and one rises to the top and the other sinks
b) salt dissolved in warm water
c) a solid formed from mixing two liquids
d) water vapor rising from boiling water
Which statement is true?
a) in a chemical equation reactants are on the left side and products are on the right side
b) in a chemical equation reactants are on the right side and products are on the left side
c) in a chemical equation reactants and products are all the same
d) in a chemical equation there are no right or left sides
Which of the following is an example of velocity?
a) 16 m east
b) 25 m/s2 west
c) 50 m/h south
d) 100 km/h
Which is NOT acceleration
a) making a u turn
b) a car speeding up as it goes up a hill
c) a bike going at a speed of 30 mph
d) a car at rest at a stop light
What is the average speed of a car that covers a distance of 10 meters in 5 seconds?
a) 1 m/s
b) 2 m/s
c) 3 m/s
d) 4 m/s
According to the law of inertia what will happen to a kid that is not wearing seat belt and the school bus stops suddenly?
a) nothing will happen
b) he will gain more mass
c) he will continue moving forward
d) he will move backwards
In the periodic table which elements have similar chemical properties?
a) the ones that are in the same group
b) the ones that are in the same period
c) all elements have similar chemical properties
d) only elements in the left side of the PT have similar chemical properties
An element that has luster and it is malleable can be said to be a
a) metalloid
b) nonmetal
c) metal
d) none
Which subatomic particle identifies an atom/element?
a) valence electrons
b) neutrons
c) electrons
d) protons
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