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Chapter 9
Chapter 9, Chemical Names and Formulas: vocab and key ideas
| Question | Answer |
|---|---|
| What are monatomic ions? | ions that consist of a single atom with a positive or negative charge (resulting from the loss or gain of oneor more electrons) |
| All the Group 1A ions have a +_ charge. (fill in the blank) | 1 |
| When the metals in Groups 1A, 2A, and 3A lose electrons, they form what? | cations with positive charges equal to their group number. |
| What is the charge of a nonmetallic ion? | negative |
| The charge of any ion of a Group A nonmetal is determined by what? | subtracting 8 from the group number |
| What is a binary compound composed of? | two elements |
| How do you write a formula for a binary compound? | write the sysmbol of the cation and anoion, then add subscripts as needed to balance the charges. |
| How do you name a binary ionic compound? | place the cation name first followed by the anion name. |
| Unlike a monatomic ion, a polyatomic ion is composed of what? | more than one atom. |
| What is a binary compound? | a compound composed of two elements. |
| What is an acid? | a compound that contains one or more hydrogen atoms and produces hydrogen ions when dissolved in water. |
| What is a base? | an ionic compound that produces hydroxide ions when dissolved in water. |
| What does the law of definite proportions state? | in sample of any chemical compound, the masses of the elements are always in the same proportions. |
Created by:
jmhschemistry
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