Answer:
warm water holds the least amount of dissolved oxygen, so I would assume the answer would be D. a small pond could heat up easily. in addition, the water is calm and not moving in a pond
159.3 g
mol= mass (g)/ molecular weight (g/mol)
Answer:
we will except an increase in the polarity of the system and this will cause the Non-polar spot to be near the solvent front, while the polar spot will run at an approximate speed of 0.5 Rf
Explanation:
when we run a TLC plate in a 50/50 mixture of hexanes and ethyl acetate we will except an increase in the polarity of the system and this will cause the Non-polar spot to be near the solvent front, while the polar spot will run at an approximate speed of 0.5 Rf
The speed of the polar spot depends largely on the level of polarity, an increase in the polarity will see both spots of Neat hexane run when we run a TLC plate in a 50/50 mixture of hexanes and ethyl acetate
Answer:
is a reactant; it is present before the reaction occurs.
Explanation:
In a chemical reaction the chemical formulas written before the arrow are described as reactants as they react together to form products which are written after the arrow.
![CaCO_3 + 2HCl \rightarrow CaCl_2 + CO_2 + H_2O](https://tex.z-dn.net/?f=CaCO_3%20%2B%202HCl%20%5Crightarrow%20CaCl_2%20%2B%20CO_2%20%2B%20H_2O)
Thus
and HCl are reactants here whereas
,
and
are products.