Answer:
No, because the amount of the matter stays the same.
Explanation:
Answer:
Four bonds
Explanation:
A carbon atom completes its octet (eight electrons in the outermost shell) only when it shares its valence electrons with other atoms. Hence, a carbon atom forms four covalent bonds by sharing valence electrons with other atoms. This is known as tetravalency of carbon established by August Kekule.
Whether carbon is in a straight chain,branched chain or cyclic structure, it always maintains its tetra valency, that it, it always forms four bonds at a time.
Answer:
The forces acting on the book are balanced by each other.
Answer:
A magnet,
Explanation: -you can cause current to flow,
The magnet moves electrons in the wire arround, only moving it about the coil or the other way arround is necaserry.
Answer:
8.1 M
Explanation:
What is the initial concentration of a solution if 40.0 mL is diluted to make 720 mL of a 0.45 M solution?
LET Y = INITIAL CONCENTRATION
SO
Y TIMES 40/720 = 0.45 m
SO
Y= (0.45) X 720/40=
0.45 X 72/4 =
0.45 X 18 =8.1 M