Because things that are burnt have been changed into something else like moldy bread thats cooked.
It is chemical change because you cannot unburn something.
Isotones are nuclides that have the same neutron number but a different proton number. Therefore the answer is C. boron and carbon.
I believe the answer is 3 - He hypothesized that all substances can be broken down into a smallest part called the atom.
1. 6 carbon atoms and triple bonding between carbons 2 and 3
2. i think it’s 3 but i may be wrong
Answer:
an object that is at rest will stay at rest inless a force acts upon it.
An oject that is in motion will not change its velocity unless a force acts upon it.
