Recent activity by KendallWater

1 answer 29 views

Calculate the standard enthalpy change for the dissolution of 5.36 g of NaOH in 100.0 mL of water, given that the molar enthalpy of dissolution for NaOH is -44.5 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 82 views

A student needs to calculate the resistance of an electrochemical cell that has a concentration of 0.1 M for both copper(II) and zinc(II) ions, using an electrochemical sensor that measures 2.5 volts for the cell. Calculate the resistance of the electrochemical cell at room temperature, given that the Faraday constant is 96485 C/mol and the gas constant is 8.314 J/(mol·K).

asked Jan 22 in ElectroChemistry

1 answer 39 views

A chemistry student has 10 grams of sulfur and 15 grams of oxygen. Given the balanced equation for sulfur dioxide formation, how much sulfur dioxide can they produce? Which reactant will be the limiting reactant and what is the amount of the excess reactant?

asked Jan 22 in Chemical reactions

1 answer 37 views

According to Hubel and Wiesel's research on receptive fields, what happens when a bar of light is presented to a receptive field of a visual neuron?

answered Jan 20 in Psychology

1 answer 53 views

When did the use of correlation become common in clinical psychology?

answered Jan 20 in Psychology

1 answer 32 views

According to the biological theory, what is the role of the hypothalamic-pituitary-adrenal axis in anxiety?

asked Jan 17 in Psychology

1 answer 28 views

According to Lev Vygotsky's sociocultural theory, why is social interaction important in cognitive development?

answered Jan 15 in Psychology

1 answer 30 views

What is the 'Realistic Conflict Theory'?

answered Jan 15 in Psychology

1 answer 23 views

According to the cognitive load theory, how does the complexity of a task affect learning?

asked Jan 15 in Psychology

1 answer 31 views

What normally prevent a positively charged particle from colliding and reacting with a positively charged nucleus, but may be overcome by kinetic energy?.

answered Jan 7 in Science

1 answer 28 views

What is another term for a hand lens?

answered Jan 6 in Science

1 answer 48 views

What chemical reaction is the opposite of oxidation?

answered Jan 6 in Science

1 answer 19 views

What are the rod-like structures made of short microtubules that play an important part in cellular division?

asked Jan 6 in Science

1 answer 25 views

Phase labels - and even special conditions - are sometimes included for the substances that are part of what?

asked Dec 31, 2024 in Science

1 answer 45 views

Linked genes are located on the same what?

answered Dec 31, 2024 in Science

1 answer 27 views

A genetic molecule is called dna, which stands for this?

answered Dec 30, 2024 in Science

1 answer 24 views

When organisms penetrate a rock, they accelerate breakdown by chemical means and what other means?

asked Dec 27, 2024 in Science

1 answer 30 views

Where does most of our food come from?

answered Dec 26, 2024

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