Diameter = 200pm
200pm -> mm
200pm *^-12 / 1*10^-3 = .0000002
2.0*10-7x mm = 1.0mm
Divide x on both sides
Calcium. this is because Mg and calcium is in the same group. hence, they have similar chemical properties
If people over mine in Georgia there could be too much pollution. Also, it could cause a lot of damages to natural resources.
Please mark as brainliest!
I would go with D) is a community along with non-living components such as water and air
Answer:
9.52 × 10³ J
Explanation:
There is some info missing but I found it on the web.
<em>Calculate the energy required to heat 179g of ethanol from -2.2 °C to 19.6 °C. Assume the specific heat capacity of ethanol under these conditions is 2.44 J/g.°C. Be sure your answer has the correct number of significant digits.</em>
Step 1: Given data
- Mass of ethanol (m): 179 g
- Initial temperature: -2.2°C
- Final temperature: 19.6 °C
- Specific heat capacity of ethanol (c): 2.44 J/g.°C
Step 2: Calculate the temperature change
ΔT = 19.6 °C - (-2.2 °C) = 21.8 °C
Step 3: Calculate the energy required (Q)
We will use the following expression.
Q = c × m × ΔT
Q = 2.44 J/g.°C × 179 g × 21.8 °C
Q = 9.52 × 10³ J
