Recent activity by HXWEvie0029

1 answer 6 views

Consider the chemical equation: Fe + H2SO4 → FeSO4 + H2 What is the coefficient of Fe when the equation is balanced using the smallest whole number coefficients?

answered 1 day ago in Chemical reactions

1 answer 23 views

How does changing the concentration of the reactants affect the equilibrium constant and the reaction rate of the reaction between iodine and propanone in acidic solution?

answered 2 days ago in Chemical kinetics

1 answer 35 views

Calculate the enthalpy change for the dissolution of 10g of NaCl in 100g of water, given that the initial and final temperatures are 25°C and 20°C respectively. The molar mass of NaCl is 58.44 g/mol and the specific heat capacity of water is 4.18 J/(g°C).

asked Jan 23 in ThermoChemistry

1 answer 51 views

A chemistry student wants to determine the specific heat capacity of an unknown metal. The student performs a calorimetry experiment and records the following data: - 50 mL of water at 25°C was added to a calorimeter. - The initial temperature of the metal was 100°C. - The final temperature of the metal and water mixture was 30°C. - The mass of the metal was 100 grams.What is the specific heat capacity of the metal?

answered Jan 22 in ThermoChemistry

1 answer 18 views

What is construct validity in relation to theories?

asked Jan 20 in Psychology

1 answer 25 views

Why is reclaimed language important?

answered Jan 20 in Psychology

1 answer 23 views

According to the psychoanalytic theory, why do individuals display aggressive behavior?

asked Jan 17 in Psychology

1 answer 23 views

What is the justification-suppression model?

asked Jan 16 in Psychology

1 answer 18 views

How does cognitive-behavioural therapy (CBT) treat anxiety disorders?

asked Jan 15 in Psychology

1 answer 22 views

According to Seligman, when does learned helplessness occur?

asked Jan 15 in Psychology

1 answer 37 views

Please compare and contrast between central and autonomic nervous systems?

answered Jan 15 in Psychology

1 answer 30 views

What is social support?

answered Jan 14 in Psychology

1 answer 5 views

When sparks from a steel grinder react with oxygen, what do they form?

answered Jan 8 in Science

1 answer 19 views

What term refers to the breaking stress that will cause permanent deformation or fracture of a material?

answered Jan 8 in Science

1 answer 22 views

What is formed when two dna strands link together in an antiparallel direction and are twisted?

answered Jan 6 in Science

1 answer 50 views

Does blood flow increase or decrease when blood vessels constrict?

answered Dec 30, 2024 in Science

1 answer 21 views

What is the name for areas where there is overlap between closely related species?

asked Dec 27, 2024 in Science

...