What is the difference between ductility and malleability
Ductility is the ability to stretch a material into a wire, while malleability is the ability to shape a material by hammering or rolling it into sheets.
Name an element that would have 'high electrical conductivity' and explain what this term means
Cu - it can conduct electricity very well
Which metal burns with a bright white light/flame?
Magnesium
How does 'cooling down' a reaction affect the rate of reaction?
It decreases the rate of reaction
What happens in a fast reaction in terms of particle collisions?
In a fast reaction, particles collide more frequently and with higher energy.
Which of metals or non-metals have "high melting points" and what does this term mean?
Melting point means the temperature at where the substance changes from solid to liquid AND metals have high m.p.
If beaker a is diluted and beaker B is a more concentrated, which beaker will undergo a faster rate of reaction?
Beaker B
True or False? and explain WHY: When you add one electron to Na it will change to Mg.
False because we only changed the amount of electrons, not protons (11 protons remain)
What is the symbol for beryllium?
Be
What solid is black and easily shattered into pieces and cannot be ductile or malleable?
Carbon
What is the product when magnesium burns in oxygen?
Magnesium oxide (MgO)
What is the chemical symbol for copper?
Cu
If you heat up copper in air, what would you see and what product will it form?
you will see green flames and it will form CuO (copper oxide)
If one reaction had sugar cubes and the other had powdered sugar, what factor have we changed to change the rate of reaction?
surface area
What happens to the mass of a flask if the gas produced in a reaction escapes?
The mass decreases
Which part of an atom has no charge (neutral)?
neutron
How does increasing the temperature affect the rate of a reaction?
It increases the rate of reaction/speeds up the reaction
Is burning paper a physical or chemical change?
chemical change
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