Answer:
A
Explanation:
Clear glass reflects light, but frosted glass absorbs light.
I can guess that Z is Phosphorus. So the oxide - P4O10 (but the most known its empirical formula P2O<span>5)</span>. Reaction with water:
P4O10 + 6H2O = 4H3PO4. Acidic compound is phosphoric acid.
Explanation:
a ...15 seconds×(3600 seconds hour)
Answer:
2.71*10^24 formula units in 4.5 moles NaCl
Explanation:
Remark
Make sure you know what a formula unit it. In this case, what it consists of is 1 ion of Na+ Combined with 1 ion of Cl- Together they combine to make NaCl which is ordinary table salt.
1 mole contains 6.02 * 10 ^23 formula units of any chemical -- in this case NaCl.
Therefore 4.50 moles have 4.5 * 6.02*10^23 formula units.
Answer:2.71*10^24
Answer:
the mass of each gas
Explanation:
Two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quantity can differ between
the two gases?(1 point)
the gas constant of each gas
the molar volume of each gas
the mass of each gas
Two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quantity can differ between the two gases?(1 point) the gas constant of each gas the gas constant of each gas the molar volume of each gas the molar volume of each gas the mass of each gas the mass of each gas the number of moles of each gas
the number of moles of each gas
PV = nRT
The gases have the same P.V, T and n
R is constant AND SO constant for both
the only difference is the molar mass of the gas
for the same number of moles, the balloons will have different weights depending on the gas
so the answer is
the mass of each gas