Answer:
179.2g of O2
Explanation:
Fir, we must obtain a balanced equation for the reaction.
The equation for the reaction is:
2H2 + 02 —> 2H2O
Next, we find the molar mass of H2 and O2 as shown below:
Molar Mass of H2 = 2x1 = 2g/mol
Mass conc. of H2 from the balanced equation = 2 x 2 = 4g
Molar Mass of O2 =16x2 = 32g/mol
From the equation,
4g of H2 required 32g of O2,
Therefore 22.4g of H2 will require = (22.4x32)/4 = 179.2g of O2
Answer:
Its images are brighter and clearer than other telescopes.
Explanation:
<em>For a telescope with large aperture, the correct answer would be that its images are brighter and clearer than those of other telescopes.</em>
The aperture of a telescope is a measure of the diameter of the optical instrument used in the telescope. The instrument could be a lens or a mirror.
<u>The larger the aperture of an optical instrument of a telescope, the more the amount of light that gets to the telescope and thus, the brighter and clearer the image taken by the telescope would be.</u>
Answer:
Explanation:
since the problem involves pressure and volume, boyle's law is used.
P1V1= P2V2
P1 = 1.85 atm
P2 =?????
V1
Chemical equilibrium is reach when the concentrations of the product and reactants will no longer change with time. this does not mean that there is no change in concentration, only the net change is zero. the forward rate of reaction is now equal to backward rate of reaction.
Answer:
True
Explanation:
Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness.
