Which of the following is not a property of most metals?
Which of the following statements is true?
The product formed when calcium reacts with fluorine is:
Which of the following best describes a catalyst?
Which of the following metals is so reactive it is stored under oil?
Complete the word equation : calcium + water ->
The test for hydrogen gas is that it:
The products of the reaction of iron and hydrochloric acid are:
Look at these diagrams showing some metals in acid. Choose the correct order of reactivity for metals X, Y and Z (most reactive first).
Magnesium and potassium both burn in
oxygen. Zinc reacts with oxygen but does
not burn. Potassium burns when added to
water. Magnesium and zinc react with
water but do not burn. What is the order of
reactivity of these metals (most reactive
first)?
Which of the following is the correct order of reactivity with acids (most reactive first)?
Which of these pictures shows the particles in a solid, pure metal?
Which of the following best describes an alloy?
A small amount of tin is added to lead. Compared to lead the melting point of the mixture will be:
Compared to the pure metals that they contain, alloys:
Name the salt made in the below reaction
Zinc + sulfuric acid --> _________ + hydrogen
Aluminium oxide is Al2O3. This means that
for every 2 aluminium atoms there are:
Painting stops iron rusting because the
paint:
When scratched to remove its surface,
which of the following metals will react
most quickly with the air?
Give on difference in the particle structure of an alloy compared to a pure metal
Explain why alloys are harder than pure metals