Answer:
Explanation:
1. Calculate the molal concentration
The formula for the freezing point depression by a nonelectrolyte is
2. Calculate the moles of solute
3. Calculate the molecular mass
Answer:
1.Predict whether or not water
sources near a manufacturing
plant are contaminated
2.Collect the water samples
3.Measure the amounts of metals
in each sample and record the
amounts in a table.
4.Conclude which, if any, of the
water samples have unsafe
levels of metal.
Answer:
The Balanced chemical equation of incomplete combustion of methane is : {eq}2CH_{4}(g)+3O_{2}(g)\rightarrow... Part(b): P a r t ( b ) : The incomplete combustion might take place whenever there is a low supply or insufficient supply of oxygen during combustion.
Explanation:
Complete combustion reacts oxygen with a fuel to produce carbon dioxide and water. Eg: 2C8H18 + 25O2→ 18CO2 + 16H20.
Answer:
False
Explanation:
Diffusion uses the concentration gradient that has been set up, this is a naturally occurring phenomena, and using a diffusion gradient some small particles can cross over the cell membrane. Some bigger or polar molecules require facilitated diffusion to move these molecules across the membrane.
Facilitated diffusion still uses the gradient for passive transport. This means that ATP is not used to transport molecules.
The reason that glucose will not move into the cell via passive transport is because there is a higher concentration of glucose inside the cell, meaning it needs active transport to move glucose (against the concentration gradient) into the cell.