Water (H2O) can be called a molecule or a compound because it is made of hydrogen (H) and oxygen (O)
Answer:
They will repel each other.
Explanation:
According to Coulomb's law, the force between two chargee is directly proportional to the product of the magnitude of the both charges and inversely proportional to their distance apart.
The force of attraction between electric charges may be attractive or repulsive in nature. When two negative charges are placed in close proximity to each other, they repel each other because like charges repel each other.
According to picture below, answer is d.c4h2n2o4 and c2hno2.
Molecular formula is chemical formula that shows the total number and kinds of atoms in a molecule, but not their structural arrangement (in this case C₄H₂N₂O₄). Molecular formula shows that compound has four carbon, two hydrogen, two nitrogen and four oxygen atoms.
Empirical formula gives the proportions of the elements present in a compund but not the actual numbers or arrangement of atoms. C : H : N : O = 2 : 1 : 1 :2.
Answer:
V = 16.3 L
Explanation:
Given data:
Volume of oxygen needed = ?
Temperature = standard = 273 K
Pressure = standard = 1 atm
Volume of sulfur trioxide = 32.6 L
Solution:
Chemical equation:
2SO₂ + O₂ → 2SO₃
Number of moles of SO₃:
PV = nRT
1 atm × 32.6 L = n×0.0821 atm.L/mol.K ×273 K
32.6 atm.L =n× 22.41 atm.L/mol
n = 32.6 atm.L / 22.41 atm.L/mol
n = 1.45 mol
now we will compare the moles of oxygen with sulfur trioxide.
SO₃ : O₂
2 : 1
1.45 : 1/2×1.45 = 0.725 mol
Volume of oxygen:
PV = nRT
1 atm × V = 0.725 mol×0.0821 atm.L/mol.K ×273 K
V = 16.25 atm.L /1 atm
V = 16.3 L