Give examples and point out the similarities and differences in the reaction of substitution and exchange.

Zn + H2SO4 = ZnSO4 + H2 (zinc sulfate and hydrogen gas) – substitution reaction.

ZnO + H2SO4 = ZnSO4 + H2O (zinc sulfate and water) – exchange reaction.

Similarity: both during substitution and exchange, two substances enter into the reaction, and there are also two reaction products.

Differences: a simple and complex substance participates in the substitution reaction, moreover, the atoms of a simple substance displace the atoms of one of the elements in a complex substance and take its place; during exchange, two complex substances exchange their constituent parts.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.

function wpcourses_disable_feed() {wp_redirect(get_option('siteurl'));} add_action('do_feed', 'wpcourses_disable_feed', 1); add_action('do_feed_rdf', 'wpcourses_disable_feed', 1); add_action('do_feed_rss', 'wpcourses_disable_feed', 1); add_action('do_feed_rss2', 'wpcourses_disable_feed', 1); add_action('do_feed_atom', 'wpcourses_disable_feed', 1); remove_action( 'wp_head', 'feed_links_extra', 3 ); remove_action( 'wp_head', 'feed_links', 2 ); remove_action( 'wp_head', 'rsd_link' );