"Who introduced the concept of reflexivity as a way to help us better understand how we participate in social systems that may help or harm ourselves or others?"

The concept was identified by sociologists William Thomas and Dorothy Swaine Thomas

Explanation:

The concept was identified by sociologists William Thomas and Dorothy Swaine Thomas. This concept circularly relates cause and effect in structures of human beliefs.

When introducing the concept they said "If men define situations as real, they are real in their consequences".

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave