Recent activity by VickyCarnaha

1 answer 38 views

How can the compatibility of polymer blends be improved to achieve a homogenous mixture with desirable mechanical properties?

answered Feb 6 in Polymer Chemistry

1 answer 41 views

Calculate the standard enthalpy change for the phase transition reaction of solid calcium carbonate (CaCO3) to gaseous carbon dioxide (CO2) at 298 K, given the following formation enthalpies: ΔHf°(CaCO3) = -1206.9 kJ/mol ΔHf°(CO2) = -393.5 kJ/mol Also, assume that the specific heat capacity of CaCO3 is 0.82 J/g·K and that of CO2 is 0.85 J/g·K.

asked Feb 3 in Chemical thermodynamics

1 answer 71 views

What is the concentration of a substance in a given sample, using the polarographic method with a measurement potential of -0.4 V and a current of 3.5 mA, if the substance has a limiting current of 5.2 mA?

answered Jan 30 in Analytical Chemistry

1 answer 35 views

According to the emotion regulation theory, what is the relationship between emotional regulation and anxiety?

answered Jan 17 in Psychology

1 answer 27 views

What is interdependence theory?

answered Jan 15 in Psychology

1 answer 42 views

According to the humanistic theory of anxiety, why do people develop anxiety disorders?

answered Jan 15 in Psychology

1 answer 32 views

Compare and contrast the behaviourist and cognitive theories of learning.

asked Jan 10 in Psychology

1 answer 43 views

What is the liquid component in blood?

asked Jan 7 in Science

1 answer 58 views

Air is said to reach what point, a term used by meteorologists, when humidity increases or temperature decreases?

answered Dec 30, 2024 in Science

1 answer 31 views

What group of simple organisms recycles nutrients and has been on earth since long before multicellular life appeared?

answered Dec 27, 2024 in Science

1 answer 15 views

Which stage has already been completed by the time sea urchin eggs are released from the female?

asked Dec 27, 2024 in Science

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