Answer: It is called a Crookes Tube, and he used it to discover cathode rays, which were later determined to be electrons.
Answer:
Its passive
Explanation:
Facilitated diffusion is a type of passive transport that allows substances to cross membranes with the assistance of special transport proteins.
The answer is 4567 grams of ice in the five pound bag to specific heat is the -20 degrees! Hope I helped! :)
Explanation:
The given data is as follows.
Concentration of solution = 0.5 M
Volume of solution = 1 L
Molar mass of Glycylglycine = 132.119 g/mol
As molarity is the number of moles present in liter of solvent.
Mathematically, Molarity = 
Hence, calculate the number of moles as follows.
No. of moles = Molarity × Volume
= 
= 0.5 mol
Therefore, mass of glycylglycine = mol × molar mass
= 
= 66.06 g
Thus, we can conclude that 66.06 g glycylglycine is required.