The answer is d for the answer
Answer:
Iron (Fe)
Explanation:
# of protons is the atomic number of the element
the element with the atomic number 26 is Iron
with 26 electrons this means it is Iron with no charge
with 30 neutrons this means the atomic weight will be
26 (protons) + 30 (neutrons) = 56
the real atomic weight of iron listed on the periodic table is 55.845, this rounded up is 56.
Answer:
The correct answer is working theories.
Explanation:
The theories that combine skills, knowledge, and attitudes taken from the experiences with places, individuals, and things are known as working theories. These theories function in monitoring events, making sense of experience, and solving issues, and create in order to turn more applicable and useful, more interconnected, and elaborate. The working theories are supported by certain proofs, however, they are not the basis for a field study yet.
Answer: 71.43g
Explanation: The RMM of NaHCO3 is
23+1+12+16(3)=84.
There is one carbon in NaHCO3 thus there are 1×12g of C in NaHCO3.
Thus
85gNaHCO3-----12g C
500gNaHCO3---- xgram
(500×12)÷84= 71.43