Chemistry Flashcards
(24 cards)
What are the general properties of metals?
Metals are typically shiny, malleable, ductile, good conductors of heat and electricity, and have high melting and boiling points.
What are the general properties of non-metals?
Non-metals are usually dull, brittle, poor conductors of heat and electricity, and have lower melting and boiling points compared to metals.
True or False: Metals can conduct electricity.
True
Fill in the blank: Non-metals tend to gain ______ in chemical reactions.
electrons
What is a displacement reaction?
A displacement reaction is a type of chemical reaction where one element displaces another in a compound.
Which type of elements typically displace others in a displacement reaction?
More reactive elements displace less reactive elements.
What is formed when a metal displaces a non-metal in a reaction?
A new compound is formed along with the displaced non-metal.
True or False: All metals can displace non-metals in a reaction.
False
What happens to the reactivity of metals down a group in the periodic table?
The reactivity of metals increases down a group.
What is an example of a displacement reaction?
When zinc reacts with copper sulfate, zinc displaces copper to form zinc sulfate and copper.
What do you call the series that ranks metals based on their reactivity?
The reactivity series.
Fill in the blank: Metals are usually ______, while non-metals are usually ______.
solid; gases or brittle solids
Which group of elements is known for being very reactive non-metals?
The halogens.
What is the result of a displacement reaction involving a more reactive metal and a less reactive metal?
The more reactive metal will replace the less reactive metal in the compound.
True or False: Non-metals can displace metals in a compound.
False
What is the main characteristic that defines a chemical reaction?
The formation of new substances.
How do metals typically react with acids?
Most metals react with acids to produce hydrogen gas and a salt.
What type of reaction occurs when iron reacts with oxygen?
A oxidation reaction, resulting in rust formation.
Fill in the blank: The chemical symbol for sodium is ______.
Na
True or False: All non-metals are gases at room temperature.
False
What happens during a chemical reaction at the molecular level?
Bonds between atoms are broken and new bonds are formed.
What is the term for a reaction that absorbs heat?
Endothermic reaction.
What is the term for a reaction that releases heat?
Exothermic reaction.
Fill in the blank: In a displacement reaction, the more reactive element will ______ the less reactive element.
displace
