Chemistry Question Preview (ID: 50192)


Periodic Table, Matter. TEACHERS: click here for quick copy question ID numbers.

The periodic table is arranged horizontally by what?
a) left to right by increasing atomic number
b) left to right by increasing atomic mass
c) left to right by number of neutrons
d) by the weight

Elements in the same group have similar
a) atomic number
b) atomic mass
c) chemical properties/reactivity
d) everything

how can you tell if 2 elements are chemically similar?
a) atomic numbers
b) periods
c) groups
d) you can´t

The law of conservation of mass states
a) That mass decreases during chemical reactions
b) That mass increases during chemical reactions
c) That mass can´t be created or destroyed; it remains the same
d)

During the law of conservation of mass
a) reactants is less than products
b) reactants are more than products
c) Reactants are equal to the products.
d)

This type of matter is made from the same type of atoms and cannot be broken down
a) compounds
b) mixtures
c) elements
d)

When 2 elements combine chemically this is formed
a) element
b) mixture
c) compound
d)

carbon, dioxide, Water, sugar and salt are all
a) mixtures
b) compounds
c) elements
d)

oxygen, nitrogen and silver are all
a) elements
b) compounds
c) mixtures
d)

Which of these are not a type of pure substance
a) elements
b) compounds
c) mixtures
d)

An element is malleable, shiny and a good conductor of electricity. Which one is it most likely to be?
a) oxygen
b) carbon
c) nitrogen
d) copper

Which group is the most reactive metals?
a) group 1
b) group 17
c) group 18
d) group 13

Which group is the most reactive nonmetals
a) group 1
b) group 17
c) group 18
d) group 13

Which are the least reactive elements
a) noble gasses- group 18
b) group 1
c) group 17
d) group 13

What is the best way to remove salt from a mixture of salt water in a chemistry lab?
a) filter out the salt
b) evaporate the water
c) sifting out the salt
d)

which of these is not a nonrenewable energy (Fossil fuel)
a) oil
b) coal
c) gas
d) biomass

What are benefits of fossil fuels
a) they are good for the environment
b) they are cheap and reliable
c) they are expensive
d) they cannot always be used

Which of these is not a negative of wind turbines is that
a) they hurt flying animals
b) They take up large space
c) They do not pollute the atmosphere
d) They are noisy

What gas is released from burning fossil fuels that leads to global warming?
a) hydrogen
b) oxygen
c) carbon dioxide
d) nitrogen

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