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nevsk [136]
2 years ago
8

H2+o2 - h2o mass Please help

Physics
1 answer:
emmasim [6.3K]2 years ago
4 0

H2O2 H2O

H2 + O2 → H2O. Word equation: Hydrogen gas + Oxygen gas → water. Type of Chemical Reaction: For this reaction we have a Combination reaction. Balancing Strategies: For this reaction it is helpful to start by changing the coefficient in front of H2O and so that you have an even number of oxygen atoms.

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How much heat is required to convert 0.3 kilogram of ice at 0°C to water at the same temperature
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Answer:

100,200J of heat is required to convert 0.3kg of ice of 0°C to water at same temperature.

Explanation:

Heat = mass * lf

Latent heat of fusion (lf) of water is 334J/g

Heat = 300g * 334 J/g

Heat = 100,200J of heat

6 0
3 years ago
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Answer:

Detailed explanation:

Density of water=1000kg/m³

Hence mass of water displaced is:

m=d×v

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=mass÷volume

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3 years ago
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Tyson Gay's best time to run 100.0 meters was 9.69 seconds. What was his average speed during this run, in miles per hour? (3.28
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Answer:

23.086 mile/h

Explanation:

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Distance Tyson Gay run = 100 m

time of run, t = 9.69 s

average speed of the in mph = ?

Speed of the Gay = \dfrac{distance}{time}

v = \dfrac{100}{9.69}

     v = 10.32 m/s

1 m = 3.281 ft

10.32 m = 33.86 ft

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1 ft = 1.8939 x 10⁻⁴ mile

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Speed of Tyson in mile/hr = 6.413 x 10⁻³ x 3600

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2 years ago
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1 year ago
When the Moon orbits Earth, what is the centripetal force?
Troyanec [42]

Answer:

D

Explanation:

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