Aromatic compounds, also known as arenes or aromatics, are chemical compounds that contain conjugated planar ring systems with delocalized pi electron clouds instead of discrete alternating single and double bonds. True / False.

Positrons are spontaneously emitted from the nuclei of (1) potassium-37 (3) nitrogen-16 (2) radium-226 (4) thorium-232

Is platinum reactive or I reactive element and why?

What laboratory activities involve chemical changes

Fatty acids consist mainly of carbon and hydrogen, and so fatty acids are a. nonpolar and do not dissolve in water. b. nonpolar and dissolve in water. c. polar and do not dissolve in water. d. polar and dissolve in water.

1. When 400 J of heat is added to 5.6 g of olive oil at 23*C, the temperature increases to 87*C. What is the specific heat of the olive oil? 2. A small rock is heated and placed in a foam cup calorimeter containing 20.0 mL of water at 25.0*C.

A 750 mL sample of nitrogen is heated from 30°C to 92 C at constant pressure. What is the final volume?

Write a brief explanation about why a plant extract is a mixture

What is an element that has more valence electrons than fluorine and less energy levels than sodium?

Why can't we breathe in pure oxygen for long

In warm water conditions, female offspring hatch from eggs laid by painted turtles. Male offspring are produced under cold conditions.