C, because that is usually what waves are meant for. :)
Answer:
Explanation:
The 1000-ml graduated cylinder with marks every 100 ml has least count of 100 ml . It means it can not measure a volume less than 100 ml . It can also measure volume in the integral multiple of 100 ml like 200 ml , 300 ml , 400 ml etc perfectly . All these have significant figure of one .
It can not measure volume like 150 , 250 , 255 , 760 etc because these measurements are not the integral multiple of 100 . 750 is not a integral multiple of 100 so it can not measure volume of 750 ml.
Answer:
Yes
Explanation:
If Mg + 2HCI is Blanced then MgCI2 + H2 is also Blanced . So yes
Boyle's law states describes the relationship between volume and pressure for a given mass of gas and it aided our understanding of breathing.
Boyle's law states that, the volume of a given mass of gas is inversely related to its pressure at as long as the temperature is constant .
This means that, as the volume of a given mass of gas increases, its pressure decreases.
As the lungs expand during breathing, the volume of air in them increases as the pressure of air inside the lungs decreases.
Learn more: brainly.com/question/1437490
Answer:
When 
and 
Explanation:
The spontaneity of a reaction can be determined by the sign of the Gibbs free energy change. For a spontaneous reaction, the change in Gibbs free energy should be negative, meaning:
Since the temperature value here corresponds to the absolute temperature, this implies that T > 0 for any T. Therefore, to have a negative difference for any temperature value, the first term, the change in enthalpy, should be negative and the change in entropy should be positive, so that we always subtract a positive number from a negative number. This corresponds to a negative value in 
.
