Answer:
O = 94.117%
H = 5.882%
Explanation:
Hydrogen peroxide (H202) Molar Mass = 34g
OH 1- 17g/mol
H 1+ = 1g/mol
O = 16g/mol
2 Grams H
32 grams O
Percentage composition of Hydrogen peroxide
O = 32/34 = 94.117%
H = 2/34 = 5.882%
Kinetic and potential energy
The STP is Standard temperature and pressure.
Standard temperature is defined as zero degrees Celsius (0° C)
Standard pressure supports 760 millimeters in a mercurial barometer (760 mmHg)
we have that
760 mmHg= 1 atm
therefore
the answer is 0 deg C and 1 atm.
Answer:
It produces magnesium oxide and hydrogen gas.
Explanation:
When magnesium burns with steam it produces magnesium oxide which is white in color and hydrogen gas. When magnesium burns, it mixes with the oxygen present in the air produces magnesium oxide in powder form. Magnesium react with oxygen by giving two electrons present in its valance shells while the oxygen needs two electron for completing their valance shell and becomes stable.
Answer:
may be uniform motion .,.