Answer:
A. harmful substances in the air, water, or soil
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Hello there!
The formula for sodium sulfide is Na2S.
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Answer:hot to cold
Explanation:
Temperature flow from hot to cold temperatures
Answer: The most likely identity of the substance is iron.
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed= Joules
m= mass of substance = 11.9 g
c = specific heat capacity = ?
Initial temperature of the water = = 25.0°C
Final temperature of the water = = 45.0°CChange in temperature ,
Putting in the values, we get:
The specific heat of 0.45 is for iron and thus the substance is iron.
D. Extreme temprature and cloudy waters