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3 years ago

_H2+O2=_H2O balance help please

Chemistry

1 answer:

erastovalidia [21]3 years ago

5 0

Both are 2
2H2+O2=2H2O

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Suppose you need 7.5m of Grade 70 tow chain, which has a diameter of /38" and weighs 2.16/kgm, to tow a car. How would you calcu

lutik1710 [3]

The mass of this much chain is 0.22 grams for 7.5m of Grade 70 tow chain, which has a diameter of /38" and weighs 2.16/kgm, to tow a car.

<h3>What are weight and mass?</h3>

Mass is the amount of the substance and object and the weight is the gravitational force required to act upon the particular mass of the substance.

To calculate the mass of car divide the wight to the gravity value 9.8 meter per second.

mass = weight / gravity

substituting the value,

mass = 2.16 / 9.8

mass = 0.22 grams

Therefore,7.5m of Grade 70 tow chain, which has a diameter of /38" and weighs 2.16/kgm, to tow a car the mass will be 0.22 grams.

Learn more about weight and mass, here:

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2 years ago

OFFERING 50 POINTS

tigry1 [53]

Answer:

The volume will be 2600 L.

Explanation:

Initial temperature ( $T_{1}$ ) = 25°C = (25 + 273) K = 298K

Final temperature ( $T_{2}$ ) = 54°C = (54 + 273) K = 327 K

By using the combined gas law equation,

$\frac{P_{1} V_{1} }{T_{1} }$ = $\frac{P_{2} V_{2} }{T_{2} }$

or, $\frac{760* 1200}{298}$ = $\frac{380* V_{2} }{327}$

or, 3060 × 327 = 380 × $V_{2}$

or, $V_{2}$ ≈ 2600 L

Hence the volume of the balloon will be about 2600 L.

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