Answer:
b
Explanation:
im pretty sure could be wrong
Answer:
Mr(CO2) = 12+2(16)= 44g/mol
Explanation:
In CO2 there are "2" oxygen and 1 carbon. Given the data, we add the molar masses to find the molar mass of the compound but since there are two oxygen, we multiply the molar mass of oxygen by 2 before multiplying.
Have about 5 beakers all with different temperatures of water. Put in a teaspoon of salt at a time and when it stops dissolving stop adding and record how much salt it took. It should be more salt as the temperature rises. The independent variable is the waters temperature. The dependent variable is how much salt is used. Make sure that there is the same amount of water in each beaker. Or else it won’t work.
Answer:
Positive change in enthalpy and negative change in entropy.
Explanation:
Remember that any spontaneous process must lead to a net increase in entropy.
When ΔH>0 and ΔS>0, the reaction proceeds spontaneously at high temperatures and proceeds spontaneously in the reverse direction at low temperatures.
When ΔH>0 and ΔS<0, the reaction proceeds spontaneously in the reverse direction.
When ΔH<0 and ΔS>0, the reaction proceeds spontaneously at all temperatures.
When ΔH<0 and ΔS<0, the reaction proceeds spontaneously at low temperatures and proceeds spontaneously in the reverse direction at high temperatures.
Answer:
A. At the top of the rock stack.
Explanation: