Answer: Explanation:
Temperatura. La solubilidad de un soluto en un determinado solvente principalmente depende de la temperatura. Para muchos sólidos disueltos en el agua líquida, la solubilidad aumenta con la temperatura hasta 100 °C, aunque existen casos que presentan un comportamiento inverso.
Answer:
B. Carbon and Hydrogen
Explanation:
An alkyne can be regarded as unsaturated hydrocarbon which have at least one carbon—carbon triple bond. They are acyclic aliphatic hydrocarbons, they can be (branched or unbranched) , They have general chemical formula of [ CₙH₂ₙ−2]. One of the compound belonging to this family is Propyne( C3H4) Hence, they contain Hydrogen and Carbon.
Alkenes can be regarded as class of hydrocarbons which posses only carbon and hydrogen, they are unsaturated compounds having least one carbon-to-carbon double bond.
alkenes can also be regarded as "olefins". one of the members of this family is Ethene (C2H4). general formula of alkenes can be written as [C nH 2n],
n=number of carbon atoms present in the molecule
Answer:
248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.
Explanation:
We can calculate the volume of the 5% w/v boric acid solution needed to prepare the buffer solution 1.24% w/v using the following equation:
Where:
: is the concentration of the initial solution = 5% w/v
: is the concentration of the final solution = 1.24% w/v
: is the volume of the initial solution =?
: is the volume of the final solution = 1 L
Hence, the volume of the 5% solution is:
Therefore, 248 mL of 5% w/v boric acid solution should be used to obtain the solution needed.
I hope it helps you!
Tectonic plates are moving is because of the molten lava below the plates are making or forcing the plates to move which causes huge water waves calls tsunami or it could also cause earthquake
The correct answer is option C