Answer:
the molecular formula of paradichlorobenzene is C6H4CL2
Answer:
Methanol, also known as methyl alcohol amongst other names, is a chemical with the formula CH₃OH. It is a light, volatile, colourless, flammable liquid with a distinctive alcoholic odour similar to that of ethanol.
Explanation:
Answer:
1.75M
Explanation:
The problem deals with finding the molarity of the given compound.
The compound is:
Na₂SO₄.10H₂O
Mass of the compound = 10.5kg = 10500g
Volume of the compound = 18.6L
Molarity is the number of moles of solute in a solution;
Molarity = 
Number of moles = 
Molar mass of Na₂SO₄.10H₂O = 2(23) + 32 + 4(16) + 10[2(1) + 16]
= 322g/mol
Now;
Number of moles = 
= 32.6mole
So;
Molarity = 
= 1.75M
Answer:
Primary producers
Explanation:
Phytoplankton belong to the <u><em>primary producers</em></u> trophic level. Beings of the other levels gain energy from phytoplankton. Phytoplankton are also capable of transforming inorganic carbon into protoplasm.
Answer:
b melting
Explanation:
The phase change the substance is undergoing is from solid to liquid and this is called melting.
- To understand this process, we need to know the the substance changing.
- A substance that contains particles that are not easily compressed and packed is a solid.
- Solids have fixed shapes and volumes.
- Liquids can easily flow although they cannot also be easily compressed.
The phase change from solid to liquid is facilitated by a melting process.
