Recent activity by LindsayDql51

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Calculate the standard enthalpy change for the phase transition reaction of solid ammonium nitrate (NH4NO3) to gaseous NH3 and NO2, given that the standard enthalpy of formation for solid NH4NO3 is -365.5 kJ/mol, the standard enthalpy of formation for NH3(g) is -46.1 kJ/mol, and the standard enthalpy of formation for NO2(g) is 33.2 kJ/mol.

answered 2 days ago in Chemical thermodynamics

1 answer 23 views

What is the effect of changing the concentration of reactants on the reaction rate and sustainability in a chemical reaction?

answered 2 days ago in Chemical kinetics

1 answer 76 views

A chemistry student wants to know the specific heat capacity of aluminum. The student has an aluminum block weighing 100 grams at a temperature of 20°C. The student heats the block until its temperature reaches 90°C by adding 500 Joules of heat. What is the specific heat capacity of aluminum?

answered Jan 22 in ThermoChemistry

1 answer 23 views

What is the evolutionary perspective in psychology?

asked Jan 20 in Psychology

1 answer 24 views

Why is repeated measures ANOVA used?

answered Jan 20 in Psychology

1 answer 25 views

According to the cognitive approach, why do people behave the way they do?

asked Jan 17 in Psychology

1 answer 21 views

What is the self-esteem theory?

asked Jan 15 in Psychology

1 answer 5 views

What is the role of a hypothesis in research design?

asked Jan 15 in Psychology

1 answer 5 views

What is the difference between a self-report measure and an observational measure?

asked Jan 13 in Psychology

1 answer 38 views

What is contemporary neuroscience?

answered Jan 13 in Psychology

1 answer 19 views

What is the Gestalt theory?

asked Jan 13 in Psychology

1 answer 39 views

What layer is below the lithosphere and in the upper mantle?

asked Jan 7 in Science

1 answer 21 views

What is the region called where an electron is most likely to be found?

asked Jan 7 in Science

1 answer 51 views

What are hollow cylinders and are the thickest of the cytoskeleton structures?

answered Jan 3 in Science

1 answer 7 views

The presence of what, which acts as a trigger, affects the rate of chemical reaction?

asked Jan 2 in Science

1 answer 21 views

Practical limits of van de graaff generators arise because the large electric fields polarize and eventually do what to surrounding materials?

asked Dec 31, 2024 in Science

1 answer 29 views

How much exercise should a person ideally get during a single day?

answered Dec 30, 2024 in Science

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