Heterogenous mixtures can separates due to differences in size of components
Non-renewable resources, such as coal, produce harmful gasses, such as carbon monoxide, polluting the air and decreasing air quality.
Answer:
850 Calories.
Explanation:
The following data were obtained from the question:
Mass (M) = 50 g
Initial temperature (T1) = 20 °C
Final temperature (T2) = 37 °C
Specific heat capacity (C) of water = 1 cal/g°C
Heat absorbed (Q) =..?
Next, we shall determine the change in temperature of water.
This can be obtained as follow:
Initial temperature (T1) = 20 °C
Final temperature (T2) = 37 °C
Change in temperature (ΔT) =..?
Change in temperature (ΔT) = T2 – T1
Change in temperature (ΔT) = 37 – 20
Change in temperature (ΔT) = 17 °C
Finally, we shall determine the heat absorbed. This can be obtained as follow:
Mass (M) = 50 g
Specific heat capacity (C) of water = 1 cal/g°C.
Change in temperature (ΔT) = 17 °C
Heat absorbed (Q) =..?
Q = MCΔT
Q = 50 x 1 x 17
Q = 850 Calories
Therefore, the heat absorbed is 850 Calories.
Answer:
the red blood cells
Explanation:
white blood cells fight off infection
<h3>Answer:</h3>
The two possible compounds are;
1) Dimethyl Ether H₃C--O--CH₃
2) Ethanol H₃C--CH₂--OH
<h3>Solution:</h3>
Step 1: Calculate Moles of each Element;
Moles of C = %C ÷ At.Mass of C
Moles of C = 52.14 ÷ 12.01
Moles of C = 4.341 mol
Moles of H = %H ÷ At.Mass of H
Moles of H = 13.13 ÷ 1.01
Moles of H = 13.00 mol
Moles of O = %O ÷ At.Mass of O
Moles of O = 34.73 ÷ 16.0
Moles of O = 2.170 mol
Step 2: Find out mole ratio and simplify it;
C H O
4.341 13.00 2.170
4.341/2.170 13.00/2.170 2.170/2.170
2 5.99 1
2 6 1
Hence, Empirical Formula = C₂H₆O
<h3>Result:</h3>
As the molecular mass of compound is not given therefore, we can assume and guess the empirical formula to be the molecular formula. Hence, possible compounds are,
1) Dimethyl Ether H₃C--O--CH₃
2) Ethanol H₃C--CH₂--OH
