Karen measures the initial volume of water as 12.5 mL. She then adds a 2.3 gram rubber stopper and the volume rises to 20.8 mL. What is the volume of Karen's rubber stopper? A. 18.5 grams

B. 2.3 grams

C. 20.8 mL

D. 8.3 mL

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

i believe it is c.) 1575 j.

2b2t

explanation:

2b2t