Recent activity by ZVWShalanda

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What is the molecular structure and bonding of carbon dioxide? Explain how the molecular structure and bonding in carbon dioxide make it a greenhouse gas that contributes to climate change.

answered 5 days ago in Chemical education

1 answer 53 views

Calculate the enthalpy change for the polymerization of polyethylene using the following information: ΔHf° of ethylene (-20.4 kJ/mol) and polyethylene (-1024 kJ/mol); the reaction equation: nC2H4 (g) → [-CH2-CH2-]n (s)

asked Jan 23 in ThermoChemistry

1 answer 56 views

Calculate the current density in an electrochemical cell if a current of 2.5 A is passed through a copper electrode with a surface area of 25 cm² and a silver electrode with a surface area of 10 cm² for 3 hours. The half-cell potentials of copper and silver electrodes are +0.34 V and +0.80 V, respectively, and the molar concentrations of copper and silver ions in the electrolyte are 0.5 M and 1 M, respectively.

asked Jan 23 in ElectroChemistry

1 answer 7 views

Please compare and contrast the ethics of using placebo treatments in research.

answered Jan 20 in Psychology

1 answer 50 views

When was the theory of attachment styles developed?

answered Jan 20 in Psychology

1 answer 18 views

How does the social identity theory explain the role of group membership in intergroup violence?

asked Jan 20 in Psychology

1 answer 34 views

Please compare the stages of cognitive development proposed by Piaget and Vygotsky.

asked Jan 20 in Psychology

1 answer 15 views

How does biopsychology explain motivation?

asked Jan 17 in Psychology

1 answer 15 views

How does attachment theory explain the impact of childhood trauma?

asked Jan 17 in Psychology

1 answer 26 views

When people have a need for self-esteem?

answered Jan 15 in Psychology

1 answer 18 views

What is the Health Locus of Control theory?

asked Jan 15 in Psychology

1 answer 27 views

What is the 'stuff' that all things are made of?

answered Jan 7 in Science

1 answer 18 views

What carries the instructions from the nucleus to the cytoplasm?

asked Jan 6 in Science

1 answer 22 views

The enteric nervous system provides intrinsic innervation, and the autonomic nervous system provides this?

answered Jan 2 in Science

1 answer 29 views

Sound navigation and ranging is an acronym for what, which is used to locate underwater objects such as submarines?

asked Dec 31, 2024 in Science

1 answer 26 views

How many weeks are in the life cycle of ladybugs

asked Dec 30, 2024 in Science

1 answer 50 views

Deep water filling a void caused by surface winds blowing water north and south is known as?

answered Dec 30, 2024 in Science

1 answer 22 views

Although they look like big rocks, what structures that serve as habitats for many different types of ocean life are actually alive?

answered Dec 30, 2024 in Science

1 answer 26 views

A fundamental particle of matter, protons and neutrons are made of these?

answered Dec 30, 2024 in Science

1 answer 7 views

What is the major selective advantage of myelination?

asked Dec 27, 2024 in Science

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