Answer:
Lithium
Explanation:
I believe it is Lithium. It can easily be cut with a knife and is the 3rd lightest non gas on the periodic table that is not a gas.
D. ... with severe weather
Answer:
30%
Explanation:
The relative humidity is the water-vapor content of the air relative to its content at saturation. Saturated air, for example, has a relative humidity of 100 percent, and near the Earth, the relative humidity very rarely falls below 30 percent.
Answer:
a. Endothermic
b. 6586J are absorbed.
Explanation:
a. When the reaction occurs, the temperature is decreasing from 20.0°C to 15.0°C, that means the reaction is absorbing heat and is <em>endothermic.</em>
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b. To find the heat absorbed we must use:
Q = -m*ΔT*C
<em>Where Q is change in heat, </em>
<em>m is the mass of solution (300g + 14.8g = 314.8g)</em>
<em>ΔT is change in temperature (15.0°C - 20.0° = -5.0°C)</em>
<em>And C is specific heat of the solution (4.184J/g°C assuming is the same heat than the heat of pure water).</em>
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Replacing:
Q = -314.8g*-5.0°C*4.184J/g°C
Q =
<h3>6586J are absorbed</h3>
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