<span>MgO + HCl = MgCl2* + H2*O
To balance an equation, you have to have both the reactants and products side equal.
Mg = 1 Mg = 1
H = 1 H = 2
Cl = 1 Cl = 2
MgO + 2HCl = MgCl2 + H2*O
We added the coefficient 2, so they could balance. </span>
Answer:
Dana filtered the sample and larger granules of the sample were left behind.
Explanation:
If a substance is pure, it will have a uniform composition throughout. It will not separate into particles of various sizes.
One of the characteristics of pure substances is that they are homogeneous. A mixture is definitely made up of particles of various sizes.
Since the particles was filtered and larger granules were left behind, the sample has been separated by a physical method (filtration). Only a mixture can be separated by physical methods. It is not a pure substance.
Answer:inform the lab instructor and get instructions
Explanation:
If you come across a chemical in the laboratory which has been wrongly labelled, do not be quick to dilute it or take any further action. The laboratory instructor who may have prepared the reagent himself or has better knowledge about the reagent should be contacted immediately so that he/she can give you instructions about what to do with the wrongly labelled reagent.
I use small cardboard<span> boxes for organizing drawers, etc,---also break them down and use it in the garden to kill weeds, and I add some to my compost. ... side to one edge that's somewhat shorter </span>than<span> the magazine, to enable one to remove one magazine without removing the </span>whole<span> box from the shelf.</span>
