Answer:
density = 7.55 g/cm^3
Explanation:
we need to get the volume first to get the density , and the volume formula is:
the volume = area * thickness
where :
area = 2 cm * 2 cm = 4 cm^2
and thickness = 100 cm
by substitution:
the volume = 4 * 100 = 400 cm^3
where
density = mass / volume
we have to convert mass from kg to g = 3020 g
by substitution:
density = 3020 g / 400 cm^3
= 7.55 g/cm^3
1.64 L of SO₂ is produced when 2.35 g of Sulfur burns.
<u>Explanation:</u>
First of all, we need to write the balanced equation as,
S (s) + O₂ (g) → SO₂ (g)
Now we have to find the number of moles of sulfur by using its given mass and molar mass.
1 mol of Sulfur atoms = 32 g of sulfur
Now the given mass is 2.35 g.
So
1 mol of S produces 1 mol of SO₂.
So 0.073 mol of S produces 0.073 mol of SO₂.
At STP, 1 mol of SO₂ occupies a volume of 22.4 L.
0.073 mol of SO₂ occupies a volume of 22.4 × 0.073 = 1.64 L
So 1.64 L of SO₂ is produced.
They all use thinking and imagination
The sun is what gives the water the energy.
The sun evaporates the water, causing it to condense and precipitate, only to repeat the process again.
Answer:
D: Atmospheric pressure is greater than vapor pressure,and water molecules escape from the solution into the air.