If the speed of light is 3.0 × 108 m/s2, then how much energy would be released if a 23.7 gram object is converted to pure energy? A. 2.133 x 10^15 J
B. 3.797 x 10^18 J
C. 7.11 x 10^6 J
D. 2.133 x 10^18 J

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!

Some familiar products contain some of the same types of atoms. for instance, the chemical formula for baking soda is nahco 3. the chemical formula for liquid bleach is naclo, and the chemical formula for table salt is nacl. which choice best describes why these three products have some of the same types of atoms in common?

Which one of the following bonds would you expect to be the most polar? a) b–h b) n–h c) p–h d) al–h e) c–h