Answer:
How the relative density of a substance is related to the density calculate the density of iron if its relative density is 2 and a density of water is 2gcm -3
R.d= relative density of substance/ relative density of water
R.d= 2/2
R.d= 1gcm-3
Explanation:
Not 100% sure but I think 40 seconds
The grams of oxygen that are required to produce 1 mole of H₂O is 16 g ( answer B)
<u><em> calculation</em></u>
2 CH₄ + 2NH₃ +3 O₂ → 2HCN + 6H₂O
step 1: use the mole ratio to find moles of O₂
from equation above the mole ratio of O₂: H₂O is 3:6 therefore the moles of O₂ = 1 mole x3/6 =0.5 moles
step 2: find mass of O₂
mass= moles x molar mass
from periodic table the molar mass of O₂ = 16 x2= 32 g/mol
mass O₂ = 0.5 moles x 32 g/mol = 16 g (answer B)
Nucleic Acid is a complex organic substance present in living cells, especially DNA or RNA whose molecules consist of many nucleotides linked in a long chain.
Nucleotide is a compound consisting of a nucleoside linked to a phosphate group. They form the basic structural unit of nucleic acids such as DNA.
Answer:
No
Explanation:
The gas will have more volume compared to the liquid.
Gases have no definite shape and no volume. They simply assume the shape of any container they are placed into. They will fill up the entirety of the bottle they are placed into.
Liquids have fixed volume although they do not have fixed shape. As they are held with weak intermolecular interactions, they are limited in space.
Therefore, they will maintain that initial volume at which they were introduced into the container.
- Liquids generally have a fixed volume and gases do not.
