A) 13 protons, 13 electrons, 13 neutrons

b) 13 protons, 10 electrons, 13 neutrons

c) 13 protons, 10 electrons, 14 neutrons

d) 13 protons, 16 electrons, 14 neutrons

Drug abuse will not lead to physical and psychological dependence. true or false ?

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above