Answer:
How high the hill is
How much the coaster itself weighs
How long the coaster is
Explanation:
protons with a positive charge and neutrons with a neutral charge
Answer:
It should be silicon... I even googled it to see if I was correct and that’s what it says so can someone figure out why silicon is not an answer
Explanation:
Answer:
No, it isn't a spontaneous reaction.
Explanation:
A spontaneous reaction is a reaction that requires no outside intervention to start.
All chemical reactions require energy.
mark brainliest please!
Answer is potassium: 19 protons, 19 electrons, 20 neutrons, mass of 39