Answer:
The average KE of the two graphs is where they intersect. Another name for temperature is kinetic energy because temperature is how fast atoms are moving and bumping into each other ( more bumping means higher temperature ).
Answer: This contains magnesium, Mg2+, and hydroxide, OH–
, ions. Each magnesium ion is +2 and
each hydroxide ion is -1: two -1 ions are needed for one +2 ion, and the formula for magnesium
hydroxide is Mg(OH)2. The (OH)2 indicates there are two OH–
ions. In a formula unit of
Mg(OH)2, there are one magnesium ion and two hydroxide ions; or one magnesium, two
oxygen, and two hydrogen atoms. The subscript multiplies everything in ( )
hope that helped!!
The season that is starting is winter.
The answer to 21 is (4)
