Answer:
2.58 gramos de argón
Explanation:
D=m/v
D: Densidad, m:masa ,v:volumen
1.45=m/1.78
1.45*1.78=2.581
They burn up and cause it to look like shooting stars
Answer:
24 g of C are needed to produce 1mol of CH₄
Explanation:
The reaction is:
2C (s) + 2H2O (l) → CH4(g) + CO2 (g)
2 moles of carbon react with 2 moles of water in order to produce 1 mol of methane and 1 mol of carbon dioxide.
If we want to produce 1 mol of methane, we need 2 moles of C
Let's find out the mass → 2 mol . 12 g/1 mol = 24g
Answer is: benzaldehyde will have <span>one or two bands of moderate intensity in the region 2695 - 2830 cm</span>⁻¹ because of <span>C-H stretch. </span>Presence of a moderate band near 2720 cm⁻¹ is helpful in determining whether or not a compound is an aldehyde. Aldehyde, always have peak around 2720 cm⁻¹.