Answer: (3)
Medeleev arranged elements in order of increasing atomic weight and similar properties
He noticed that similar elements were grouped together by using this.
CThe answer is 64%.
(1) Calculate the molar mass of N2O which is the sume of atomic masses of its elements:
Mr(N2O) = 2Ar(N) + Ar(O)
Ar(N) = 14 g
Ar(O) = 16 g
Mr(N2O) = 2 * 14 + 16 = 28 + 16 = 42 g
(2) Calculate mass percentage of nitrogen in N2O.
Total mass is 44 g: 44g is 100%
Mass of nitrogen is 28 g: 28g is x%
44 g : 100% = 28 g : x
x = 28 g * 100% : 44 g
x = 63.64% ≈ 64%
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.