Completar frases 1 - Chemical ChangesVersión en línea Chapter 10, Lesson 1: "Chemical Changes". Use your textbook to help you fill in the blanks (click the words) pages 540 - 547. por Naneth Burquez 1 conservation products mass numbers reaction color chemical reactants gases balanced letters bonds chemical change chemical What are chemical charges ? 1 . - When atoms attach to other atoms , the forces that hold these atoms together are . 2 . - During a , new substances with new properties form . 3 . - Evidence that a chemical change has occurred includes a change in or the formation of . 4 . - Another term for chemical change is . 5 . - The substances present before chemical change happens are , and those present after chemical changes are . 6 . - A chemical equation uses and to show that changes have occurred . 7 . - A chemical equation is because it shows the same numbers and types of atoms on both sides . 8 . - Because it shows the same numbers of each type of atom on both sides , a chemical equation shows that a chemical change obeys the law of of .
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