Which of the following has a positive or negative charge? a. covalent bond b. hydrogen bond c. ionic bond d. molecule

.The answer to this question is: C. ionic bond
In general, Ion particle are 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

Why don't give me a problem to work with and i will you with the problem

So that you don't get baby's but also prevents stis such as hiv