What is a representative element? Give names and symbols

Introductory Chemistry 5
Name each compound and calculate its formula mass. (a) \(\mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3}\) (b) \(\mathrm{P}_{2} \mathrm{O}_{3}\) (c) HClO(aq) (d) \(\mathrm{Cr}\left(\mathrm{C}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\right)_{3}\)

Campbell Biology 9
Which of the following factors would tend to increase membrane fluidity? a. a greater proportion of unsaturated phospholipids b. a greater proportion of saturated phospholipids c. a lower temperature d. a relatively high protein content in the membrane e. a greater proportion of relatively large glyc

Biology 8
Dmw Lewis structures for each hypothetical molecule shown below, using the correct number of valence electrons for each atom. Determine which molecule makes sense because each atom has a complete valence shell and each bond has the correct number of electrons. Explain what makes the other molecules n

Anatomy & Physiology 1
C.J. is stuck in her car during a bitterly cold blizzard. Her body responds to the cold by ________. a. increasing the blood to her hands and feet b. becoming lethargic to conserve heat c. breaking down stored energy d. significantly increasing blood oxygen levels

Biology: The Unity and Diversity of Life 15
Cytoplasm of a plant cell divides by the process of ___ . a. telekinesis c. fission b. nuclear division d. cytokinesis

Psychology 5
The tendency to make a dispositional attribution even when a persons behavior was caused by the situation is referred to as a. groupthink. b. the mere exposure effect. c. normative influence. d. correspondence bias.

Chemistry for today : general, organic, and biochemistry 9
Calculate the molar concentration of \(\mathrm{OH}^{-}\) in water solutions with the following \(\mathrm{H}_{3} \mathrm{O}^{+}\) molar concentrations: a. 0.044 b. \(1.3 \times 10^{-4}\) c. 0.0087 d. \(7.9 \times 10^{-10}\) e. \(3.3 \times 10^{-2}\)

Chemistry for today : general, organic, and biochemistry 9
Why is it necessary that protein molecules be enormous?