Answer : The correct option is, C.
Explanation :
pH meter : It is an electric device which measure the concentration of hydrogen-ion in the solution. It also measure the acidity or alkalinity of water in the solution.
Therefore, the purpose of student for testing the lake water is to understand how people use it in their daily-life. As this will help him to analyse the quality of lake water whether, it is fit for use or not.
Answer:
El volumen del cuerpo es el mismo al comienzo de la experiencia.
Explicación:
El volumen del cuerpo es el mismo al principio porque el volumen no cambia si la temperatura permanece igual. Si cambiamos la temperatura i. mi. Al aumentar la temperatura, las moléculas comienzan a expandirse y se produce un aumento de volumen mientras que cuando disminuimos la temperatura, las moléculas de esa sustancia comienzan a contraerse y el volumen de esa sustancia disminuye. Entonces concluimos que el volumen depende de la temperatura.
Answer:
likely ionic
Explanation:
The bond between , Sodium and Bromine , in sodium bromide salt , is ionic in nature .
Since ,
The difference in the electronegativity of the two atom is high .
According to Pauling scale ,
The Electronegativity of Bromine = 2.96
The Electronegativity of sodium = 0.93
Hence ,
The Difference in electronegativity = ( 2.96 - 0.93 ) = 2.03
Hence ,
The electronegativity difference value is more than 1.8 ,
Therefore,
The bond is ionic in nature .
