Divide the volume by the area. Using scientific makes things a bit cleaner.
Then
Now, 1 m = 10⁹ nm, so
A. Boiling water is an example of physical change, whereas digesting food, breaking glass, and shoveling snow are not.
Answer:
d
Explanation:
d. 1000.00 The fact that there is a decimal point is a sinal that the measurement was made down to past the ones position. The 2 additional zeros signal that it was measured down to the hundreths position.
Answer:
Ratio of the final volume of the gas mixture to the initial volume of the gas mixture is 2 : 3
Explanation:
Before proceeding, we have to write out the balanced chemical equation and this is given as;
sulfur dioxide gas + oxygen gas → gaseous sulfur trioxide
SO₂ + O₂ → SO₃
Upon balancing the equation, we have;
2SO₂ + O₂ → 2SO₃
From the equation, we can tell that 2 moles of SO₂ react with 1 moles of O₂ to give 2 moles of SO₃.
Applying gay lusaac's law;
Gay Lussac's Law of Combining Volumes states that when gases react, they do so in volumes which bear a simple ratio to one another, and to the volume of the product(s) formed if gaseous, provided the temperature and pressure remain constant.
This means 2 vol of SO₂ react with 1 vol of O₂ to give 2 vol of SO₃.
Initial volume of gas mixture (No product has been formed) = 2 vol of SO₂ + 1 vol of O₂ = 3 vol
Final volume of gas mixture (Reactants has been exhausted and product formed) = 2 vol of SO₃
Ratio (Final : Initial);
2 : 3
