The reason why iron oxide has more mass than the iron is because Iron oxide has oxygen atoms, and pure iron does not.
When iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains this
observation?
(A)Iron oxide has oxygen atoms, and pure iron does not.
(B)The oxygen atoms in iron oxide have more mass than the iron atoms in pure iron.
(C)The iron atoms in iron oxide have more mass than pure iron.
(D)There are more iron atoms in iron oxide than in pure iron.
When a chemical reaction takes place, other atoms are combined with pure elements to form compounds. This addition of another atom (oxygen) after reaction makes iron oxide formed heavier than pure iron.
Iron oxide is a chemical substance formed when pure iron rusts. The formation of iron oxide is a chemical reaction.
Hence, the correct answer to the question is; the iron is heavier because Iron oxide has oxygen atoms, and pure iron does not.
Learn more: brainly.com/question/6284546
Answer:
c because if they are in an improper format, they will not be able to be uploaded
The probability that the sample mean would differ from the population mean by less than 655 miles in a sample of 79 tires if the manager is correct is = 0.9805.
<h3>
What is the calculation for the above?</h3>
P ( < 655) ≡ P [ |( - μ)/√(σ²/n) | <655/√(6,220,036/ 79)]
= P (| Z | < 3.55)
= P - 3.55 < Z < 3.55) Using the z -score table
= 0.9998 - 0.0193
= 0.9805
Learn more about sample mean at:
brainly.com/question/12892403
#SPJ1
Answer:
c) 200 additional D.A should be paid.
Explanation:
o calculate D.A first calculate inflation rate between 1980 and 1984.
Inflation Rate = × 100
Inflation Rate = × 100
= 25%
If 800 is the basic salary then D.A should be according to inflation rate 25% of the salary.
D.A = 800 ×
= 200
Read more on Brainly.in - https://brainly.in/question/12473388#readmore
Answer:
What are the choices? Please supply the choices listed And I will gladly help.