.The answer to this question is: C. ionic bond
In general, Ion particle are <span>formed when atoms lose or gain electron (when loses electron, ion become positive. When gaining it, ions become negatively charged)
Among the chemical substances, Metal atoms had the positive ions and nonmetal atoms will have negative ions</span>
Depends on how fast he runs in a sitting. If he runs slow during the 20 minutes he isn't getting much done :D.
Measured by how well he or she does the job
C. Clean clothing I believe this the answer
Answer:
Your target rate should be between 171-200 so if it's the 65% then multiply 200 by .65 and get 130. So that would be the 65% of your target heart rate
Explanation: