Answer: In the periodic table the elements are arranged in order of increasing atomic number/ atomic mass from left to right in the periodic table.
Explanation:
when the moon is full is the only time that u would be able to see a full moon.
9g x 1/18.02= 0.499 rounded is 0.50
Answer:
96.0 grams of oxygen gas (O2) will be produced.
Option B is correct.
Explanation:
Step 1: Data given
Number of moles SO2 = 2.0 moles
Molar mass O2 = 32.0 g/mol
Step 2: The balanced equation
2H2S(g) + 3O2(g) → 2SO2(g) + 2H2O(g)
Step 3: Calculate moles oxygen gas (O2)
For 2 moles H2S we need 3 moles O2 to produce 2 moles SO2 and 2 moles H2O
For 2.0 moles SO2 produced we need 3/2 * 2.0 = 3.0 moles O2
Step 4: Calculate mass O2
Mass O2 = moles O2 * molar mass O2
Mass O2 = 3.0 moles * 32.0 g/mol
Mass O2 = 96.0 grams
96.0 grams of oxygen gas (O2) will be produced.
Option B is correct.
Answer:
The 150 g Al will reach a higher temperature.
Explanation:
<em>The amount of heat added to a substance (Q) can be calculated from the relation:</em>
Q = m.c.T.
where, Q is the amount of heat added,
m is the mass of the substance,
c is the specific heat of the substance,
T is the temperature difference
Since, Q and c is constant, T will depend only on the mass of the substance (m).
T is inversely proportional to the mass of the substance.
The piece with the lowest mass (150.0 g) will reach a higher temperature than that of a higher mass (250.0 g).
