Reactions Of Metals Flashcards
(22 cards)
What do many metals react with?
Oxygen, water, and dilute acids
How do metals in groups 1 and 2 react with water?
React directly to form hydroxides
What happens when reactive metals react with oxygen?
They will burn vigorously to form an oxide
What is tarnishing?
The slow reaction of metals with oxygen, forming a layer of oxide on the surface
What do metals more reactive than hydrogen produce when reacting with dilute acids?
A salt and hydrogen gas
What is produced when Ca(s) reacts with dilute sulfuric acid?
Calcium sulfate, CaSO4(aq), and hydrogen gas, H2(g)
How does reactivity change as you go down a group of metals?
Metals become more reactive with oxygen, water, and dilute acids
What causes increased reactivity down a group?
Larger atomic size and increased shielding from the nucleus
How does reactivity change as you go across a period of metals?
Metals become less reactive with oxygen, water, and dilute acids
Why is magnesium less reactive than sodium?
Magnesium requires more energy to lose two electrons compared to sodium losing one
What happens when metals react with dilute hydrochloric acid?
They form a salt called a chloride
True or False: Less reactive metals tend to react directly with water.
False
Fill in the blank: If you use dilute sulfuric acid, you will form a salt called a _______.
sulfate
What is the product of a metal reacting with dilute acids?
Salt and hydrogen gas
What is the general trend in metal reactivity as you go down a group?
Increased reactivity
What is the relationship between atomic size and metal reactivity?
Larger atomic size leads to increased reactivity
What does the reaction of metals with oxygen lead to over time?
Formation of an oxide layer
Which metals do not react with acids?
Metals that are less reactive than hydrogen, e.g., copper
What gas is produced when metals react with dilute acids?
Hydrogen gas
What is the effect of inner electron shells on metal reactivity?
They provide shielding, reducing electrostatic attraction from the nucleus
What is the reaction of magnesium with steam?
Produces hydrogen gas
What is the expected outcome when a more reactive metal displaces a less reactive metal in a reaction?
The more reactive metal will replace the less reactive metal
