Fill in the chemistry basics

Exercise and reference answers

Missing parts

1. Answer

   positive

   Choices

   1. positive
   2. negative
   3. neutral
   4. no

2. Answer

   hydrogen

   Choices

   1. hydrogen
   2. oxygen
   3. hydroxide
   4. sodium

Complete the statement

Metals form {0} ions by losing electrons, and acids release {1} ions in water.

Instructions

Fill each blank.