your answer is <u>D</u><u>.</u><u> </u>physical change, because a new substance is not formed.
I believe the answer is 3 - He hypothesized that all substances can be broken down into a smallest part called the atom.
Hey there!
Speed and velocity both:
1) Measure how fast something is moving
2) Both measured in miles per hour, meters/second, etc (rates)
However, there's a prime difference:
Different because:
1) Velocity is speed, but in a certain direction
2) Velocity is a vector
3) Velocity can be positive <em>or</em> negative, unlike speed.
I added another just in case you had a preference :)
Hope this helps!
Answer:
Cada átomo aporta dos electrones al enlace, es decir, se comparten dos pares de electrones entre dos átomos. Un ejemplo es la molécula de Oxígeno (O2).
Explanation:
Answer:
B and C
Explanation:
The correct answer is Condensation and Deposition
