Explanation:
2H2 + O2 = 2H2O
2mol. 1mol. 2mol
2mol reacts with 1mol
13mol reacts with x
x=<u>13mol</u><u> </u><u>×</u><u> </u><u>1mol</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u>2mol</u>
x= <u>13mol</u>
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>2mol
x= 6.5mol of oxygen
Answer:
I think It is an organism
Answer: melting, freezing, sublimation, deposition, condensation, and vaporization
For question 1, the correct answer is a glass breaking because this process involves only a physical change. The identity of the glass was not changed. For question 2, the correct answer is freezing ice because the bonds in a phase change are not broken down or are formed. For question 3, the correct answer is the last option. Chemical changes <span>change the identity of a substance.</span>
I need more information to be able to answer this question