Answer: The Earth systems is divided into Atmosphere, Lithosphere, Hydrosphere and Biosphere.
Explanation:
According to the three basic states of matter (i.e. solid, liquid and gas), the earth system is divided into the following categories:
1. Atmosphere - is the layer of gases that is found in the Earth. The gases are nitrogen, oxygen, carbon dioxide and other gases.
2. Lithosphere - This part contains the rocks and soil
3. Hydrosphere - This is all the water found on the Earth, and
4. Biosphere - It consists of all the living organisms and their dwelling place on Earth. Living organisms have all the three states of matter.
Answer:
71820 J
Explanation:
From the question given above, the following data were obtained:
Mass (M) = 1.05 Kg
Initial Temperature (T₁) = 23 °C
Final temperature (T₂) = 99 °C
Heat (Q) required =?
Next, we shall determine the change in temperature. This can be obtained as follow:
Initial Temperature (T₁) = 23 °C
Final temperature (T₂) = 99 °C
Change in temperature (ΔT) =?
ΔT = T₂ – T₁
ΔT = 99 – 23
ΔT = 76 °C
Finally, we shall determine the heat required. This can be obtained as follow:
Mass (M) = 1.05 Kg
Change in temperature (ΔT) = 76 °C
Specific heat capacity (C) of aluminum = 900 J/KgºC
Heat (Q) required =?
Q = MCΔT
Q = 1.05 × 900 × 76
Q = 71820 J
Thus, 71820 J heat energy is required.
Answer:
<h3>The answer is 8.4 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer as
<h3>8.4 g/cm³</h3>
Hope this helps you
Percentage yield = (experimental yield /theoretical yield) x 100 = (280/300)x 100 = 93.34%