How many hydrogen atoms are present in 75.0 of g h2o?

Idon’t know how to solve this question

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.