Observation/ question
research
hypothesis
<span>experiment
</span>analysis
conclusion
Answer:
Explanation:
Look at the reaction.
2NH3 ===> N2 + 3H2
It's a molecule that is breaking down to two elements on the periodic table. We used to call such a thing as a simple decomposition.
Electrons = protons
protons = atomic number
protons + neutrons = atomic mass
Therefore: a) protons + 7 = 15
protons= 15 -7
protons= 8
B) Remember proton = atomic number
so atomic number = 8
C)Now we know the atomic number so we can easily check on the periodic table what element has an atomic number of 8, which is Oxygen
Answer:I'm not completely sure but I think the energy stored in fossil fuels came from the sun and was captured through photosynthesis.
Explanation:
Answer:
C: object does not slide off the pan
Explanation: