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Science 7 Def.
Chemistry
| Question | Answer |
|---|---|
| ATOMS HELD TOGETHER BY CHEMICAL FORCES | MOLECULES |
| THE SUBSTANCE FORMED WHEN TWO OR MORE DIFFERENT ELEMENTS CHEMICALLY JOIN TOGETHER, THE REARRANGING OF ATOMS IN A CHEMICAL CHANGE. | COMPOUND |
| THE JOINING OF DIFFERENT TYPES OF ATOMS TO FORM A COMPOUND, ASLO CALLED A CHEMICAL CHANGE | CHEMICAL REACTION |
| A METHOD THAT USES CHEMICAL SYMBOLS AND NUMBERS TO SHOW THE MAKE-UP OF COMPOUND | CHEMICAL FORMULA |
| A TERM THAT DESCRIBES A SHELL COMPLETELY FILLED WITH ELECTRONS | CLOSED |
| A TYPE OF BAND FORMED WHEN ATOMS SHARE ELECTRONS | COVALENT BOND |
| AN ATOM THAT HAS GAINED OR LOST ELECTRONS | ION |
| AN ATOM WITH FEWER ELECTRONS THAN NORMAL | POSITIVE ION |
| AN ATOM WITH MORE ELECTRONS THAT NORMAL | NEGATIVE ION |
| A BOND FORMED BY THE ELECTRICAL ATRACTION BETWEEN OPPOSITELY CHARGED IONS. | IONIC BOND |
| A COMPOUND THAT FORM HYDROGEN IONS (H+) WHEN DISSOLVED | ACID |
| A COMPOUND THAT FORMS HYDROXIDE IONS (OH-) WHEN DISSOLVED IN WATER. | BASE |
| A BASE THAT DISSOLVES IN WATER | ALKALI |
| THE SCALE USED TO SHOW THE CONCRTRATION OF AN ACID OR A BASE IN A SOLUTION | PH SCALE |
| A TERM THAT DESCRIBES A SOLUTION THAT IS NEITHER BASIC NOR ACIDIC | NEUTRAL |
| A SUBSTANCE THAT CHANGES COLOR WHEN EXPOSED TO ACID OR BASE SOLUTION | INDICATOR |
| TO MAKE A SOLUTION NEUTRAL BY COMBINING AN ACID AND A BASE TO FORM WATER AND SALT. | NEUTRALIZE |
| A COMPOUND THAT FORMS AFTER A BASE AND AN ACID COMBINE | SALT |