Someone drops a book on the floor, and it makes a loud noise. At that time, you turn to look at the person who dropped the book. Turning and looking at the person who dropped the book is an example of a… A. Phototropism

B. Response

C. Hydrotropism

D. Stimulus

What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.