Recent activity by LewisBrownel

1 answer 27 views

How can chemistry educators and institutions address the limited availability of textbooks and resources in low-income communities to improve access to quality education and opportunities for students to pursue careers in chemistry?

asked 1 day ago in Chemical education

1 answer 68 views

A chemistry student wants to determine the enthalpy change of a chemical reaction. They have 25 g of sodium hydroxide and want to mix it with 50 mL of 1.0 M hydrochloric acid. What is the maximum temperature change they can expect to see, assuming constant pressure and perfect heat transfer, and what is the enthalpy change of the reaction?

answered Jan 22 in Physical Chemistry

1 answer 24 views

How does the drive reduction theory explain motivation?

asked Jan 20 in Psychology

1 answer 50 views

According to the attachment theory, what is the role of the primary caregiver in a child's attachment style?

answered Jan 20 in Psychology

1 answer 7 views

According to Jean Piaget's cognitive development theory, how do children learn about the world?

answered Jan 17 in Psychology

1 answer 25 views

What is Family Systems Theory?

asked Jan 15 in Psychology

1 answer 28 views

What is the trait theory proposed by Gordon Allport?

asked Jan 13 in Psychology

1 answer 28 views

What are the differences between the symptoms and causes of stress and burnout?

asked Jan 13 in Psychology

1 answer 16 views

Where does the stratosphere get most of its heat?

answered Jan 8 in Science

1 answer 53 views

What type of motor is used in most household devices with moving parts?

answered Jan 8 in Science

1 answer 5 views

What properties describe the existence of matter, as opposed to chemical properties that describe how substances change into other substances?

answered Jan 7 in Science

1 answer 18 views

What process does water undergo to leave behind dissolved substances?

answered Jan 7 in Science

1 answer 24 views

What is the vector sum of all the torques acting on the object called?

answered Jan 7 in Science

1 answer 32 views

What is regulated by the reticular formation?

asked Jan 6 in Science

1 answer 24 views

What force holds planets in their orbits?

asked Jan 6 in Science

1 answer 31 views

The mass of the objects and the distance between them affect the strength of what universal force?

answered Jan 2 in Science

1 answer 26 views

The heat capacity of an object depends on its chemical composition and what other property?

asked Jan 2 in Science

1 answer 25 views

Shivering and adipose tissue called brown fat are used by mammals in particular to produce what?

answered Dec 31, 2024 in Science

1 answer 9 views

Radiation can be absorbed or shielded by materials, particularly what material used to make protective aprons worn by x-ray administrators?

answered Dec 31, 2024 in Science

1 answer 23 views

A polyatomic ion is an ion composed of more than one what?

answered Dec 28, 2024 in Science

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