Generally alkaline metals (Group 1) such as lithium, sodium and potassium react with water and at the same time dissolve in it. During the reaction these alakaline metals form alkali solutions (litium hydroxide, sodium hydroxide) and releasing hydrogen gas. Apart from this calcium (belong to Group 2) too able to react and dissolve in water.
The Alkali metals melt in water so: Rubidium is one example of a metal that melts in water.
iron
When a metal oxide reacts with an acid a slat and water are formed.
Copper sulfate dissolves in water, it does not react.
Carbon dioxide dissolves in water and reacts with the water to form carbonic acid, and therefore, you get an acid-base neutralization reaction with sodium hydroxide.
A corresponding metal salt and water are produced.
The reaction with sodium is that there starts to be fire on the water, so it acts violently. Sodium chloride dissolves in water, because it is salt (table salt).
Sodium reacts violently with water, while sodium chloride (or table salt) dissolves in water.
When a metal oxide reacts with an acid a slat and water are formed.
Copper sulfate dissolves in water, it does not react.
potassium in the banana reacts to water and melts the banana
Water
copper
rust
Hydrogen
Metal hydroxide + hydrogen gas
Lead is a moderately active metal. It dissolves slowly in water and in most cold acids. It reacts more rapidly with hot acids. It does not react with oxygen in the air readily and does not burn.
Carbon dioxide dissolves in water and reacts with the water to form carbonic acid, and therefore, you get an acid-base neutralization reaction with sodium hydroxide.
The reaction with sodium is that there starts to be fire on the water, so it acts violently. Sodium chloride dissolves in water, because it is salt (table salt).