The mass of water equals the mass of the hydrate minus the mass of the anhydrite 4.9 G -2.9 G equals 2.0 G of water moles of water equals the mass of water/the molar mass of water 2.0 GH20/18 G/MOLHTO equals 0.11 Moles H20
Answer:
1. CaCO3 + 2HCl —> CaCl2 + H2O + CO2
2. Mg(OH)2 + 2HCl —> MgCl2 + 2H2O
3. Na2CO3 + 2HCl —> 2NaCl + H2O + CO2
<span>This is an example of diffusion. The nitrous oxide is moving from an area of higher concentration, down the gradient into the cell, which has a lower concentration. Since the cell doesn't have as much N2O as the surrounding environment, the gas will move inside the cell as a way of attaining equilibrium.</span>
Answer:
D.- Using a sterile liquid and eliminating exposure to microorganisms.
Explanation:
Remember that Redi´s experiment is going to be with different jars cover the top. In this case, if the liquid is sterile that means any living thing is present there. so if by passing the time, there are no microorganisms, this is going to be the results that the spontaneous generation does not exist. From a non living liquid there can not produce a living thing.