Molar mass of iron(III) oxide is 160g/mol
160g ----------- of iron(III) oxide is ---------------- 6.02*10²³molecules
79g ----------- of iron(III) oxide is ---------------- x
x = [6.02*10²³*79g]/160g ≈ <u>2.97*10²³ molecules</u>
Answer:
A) FeO
Explanation:
Options:
A) FeO
B) FeO2
C) Fe2O
D) Fe7O2
<u>The correct answer is A) FeO.</u>
(Hope this helps can I pls have brainlist (crown)☺️)
Answer:
Explanation:According to the law of conservation of mass (mass remains the same throughout a reaction), mass is conserved in this case. This can be proven by comparing the weight of two enclosed glass containers of the reaction. They will most likely have the same weight because the products the chemical reaction creates would most likely produce a gas that can be trapped if there is no opening in the glass container. To further investigate, compare the weights of the products of the reaction with an enclosed container to another container with no lid of the same reaction.
The germ theory of disease
eventually led to the development of certain types of vaccines. This theory explains
that specific type or types of microorganisms, which are bacteria, virus, fungi,
or protest species, cause some diseases. These organisms can enter the human
body, and can even grow and reproduce, causing infection, inflammation to
specific organs in the body, and others. One particular vaccine developed successfully
through this understanding is the smallpox vaccine, which is an important
vaccine up to this day.
Answer:
Explanation:
The acid level has changed
