Below is the solution:
n equation showing conservation of mass of reactants and products:
<span>2H2O --> 2H2 & O2 </span>
<span>what is the mass of the oxygen gas produced, from 178.8 g H2O , (using molar masses: </span>
<span>178.8 g H2O @ (1mol O2)(@ 32.00 g/mol) / (2molH2O)(18.02g/mol) = </span>
<span>your answer (4 sigfigs): 158.8 g O2 </span>
<span>178.8 g H2O ---> 20.0 H2 & 158.8 O2</span>
This is because both of these regions have specific subjective opinions about these areas which reflect their feelings and images.
What this means is that both West and East in Europe were influenced by particular political ideologies - West by democracy, whereas East was influenced by communism. Even today, Eastern and Western Europe are quite reflective of those ideologies.
Answer:
Africa is the area which has the lowest amount of naturally available freshwater per capita.
Explanation:
Some parts of Africa have about 3879 m^3 of naturally available freshwater per capita. That is 12% of what is naturally available in South America, for instance.
Answer:
No agriculture can take place in dry lands due to lack of water.
Explanation:
This is the statement that is not true of dry lands. It is true that dry lands are generally not suitable for large-scale agriculture. However, this does not mean that no agriculture can take place in them. People who have lived in dry lands for generations often farm in a small scale. Moreover, they grow crops that are resistant to this lack of water. Finally, some dry lands are significantly productive due to the use of artificial irrigation.
Answer:
The amount of sunlight changes when moving between north and south.
Explanation:
Climate change results from global warming which is an increase in the temperature of the earth.
The sun is the primary source of temperature change on earth, and latitude place a great role in the amount of sunshine that come to an area. Places at high latitude receive less sunlight when compared to places at low latitude, this in turn determines how warm or cold a region can be. On the other when moving from east to west, it is along longitudinal lines and this can be on same elevation, thus there are no significant changes in temperature.
Therefore sunlight plays a key role in altering the temperature along latitudes.
