Answer: The freezing point depression is
Explanation:
Depression in freezing point is given by:
= Depression in freezing point
= freezing point constant =
m= molality =
Thus freezing point depression is
Explanation:
Metallic bond, force that holds atoms together in a metallic substance
Answer:
The amount of sunlight and rainfall in different climates determines the climate temperature and humidity hence the majority of the factors of a climate
Explanation:
The climate of a place is its average weather condition, such as the temperature, snow and rainfall, wind etc. The factors that determines the climate of a region includes the amount of sunlight received, the height above sea level etc
The amount of sunlight determines the amount of heat energy received at a location and hence the temperature of the climate
The amount of rainfall will determine how wet or cold a place as well as the dissipation of the energy from the sun.
Therefore, the amount of sunlight and rainfall in different climates determine the climate temperature and humidity and other dependent climate factors.
Answer:
So, Luke and Sian has to increase the pH of the soil by adding base to it.
Explanation:
The pH is defined as the negative logarithm of the hydrogen ion concentration in their aqueous solution.
- With increase in hydrogen ion concentration the pH value decreases.
- With decrease in hydrogen ion concentration the pH value increases.
The pH of the soil after testing it on a kit comes out be 5.0, but they both need pH of the soil to 6.5.
Comparison of pH of soil:
= 5.0 < 6.5
= High hydrogen ion concentration > High hydrogen ion concentration
So, Luke and Sian has to increase the pH of the soil by adding base .Doing so will decrease the hydrogen ion concentration in the soil (where as addition of acid lower the pH of soil).