Answer: Gas
Explanation:
since the gas molecules arent being forcefully bonded together like a solid would be, and liquids tend to have lower kinetic energy than solids
2Ca + O2 = 2CaO
First, determine which is the excess reactant
72.5 g Ca (1 mol) =1.8089725036
(40.078 g)
65 g O2 (1 mol) =2.0313769611
(15.999g × 2)
Since the ratio of to O2 is 2:1 in the balanced reaction, divide Ca's molar mass by 2 to get 0.9044862518. this isn't necessary because Ca is already obviously the limiting reactant. therefore, O2 is the excess reactant.
Now do the stoichiometry
72.5 g Ca (1 mol Ca) (1 mol O2)
(40.078 g Ca)(2 mol Ca)(31.998g O2)
=0.0282669621 g of O2 left over
<span>The human body is organized at different levels, starting with the cell. Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems.</span>
The answer is :
The normal equation for the decomposition of hydrogen peroxide indicates that 2 vol. peroxide vapor should give rise to 2 vol. water vapor and 1 vol. oxygen.
What is hydrogen peroxide ?
- Hydrogen peroxide is water (H2O) with an extra oxygen molecule (H2O2).
- The extra oxygen molecule oxidizes, which is how peroxide gets its power says Dr. Beers.
- This oxidation kills germs and bleaches color from porous surfaces like fabrics.
- Hydrogen peroxide is found in biological systems including the human body.
- Enzymes that use or decompose hydrogen peroxide are classified as peroxidases.
To learn more about Hydrogen peroxide visit: brainly.com/question/18709693?
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