What are the amounts of molecules in 19 g flourine

Oil is less dense than water. Will the oil sink or float when placed in water? A. Sink B. Float

What are some of the techniques by which mixtures can be resolved into their components?

14 Which statement describes a multiple covalent bond? (1) Two electrons are shared. (2) Four electrons are shared. (3) Two electrons are transferred. (4) Four electrons are transferred.

Buffers are because of low tolerance to changes in pH. a. Critical to biological systems because of low b. Present in our blood stream c. Usually mada dally made up of a weak acid and its conjugate ban d.

Accelerating rate of 2m/s. Initial velocity is 20m/s. What's velocity after 30 seconds

Which statement best describes the compressibility of a gas? A Increasing the temperature of a gas decreases the pressure. B Increasing the temperature of a gas increases the pressure. C Increasing the pressure on a gas decreases the volume.

How many grams are in 3.0 moles of KCI (potassium chloride) ?

3 During a flame test, a lithium salt produces a characteristic red flame. This red color is produced when electrons in excited lithium atoms (1) are lost by the atoms (2) are gained by the atoms (3) return to lower energy states within the atoms

Select the answers below that represent the ionic compounds in this list: na2so4 h2so4 ch3-ch3 n2o4 cacl2 ca3 (po4) 2

Whats the relationship between the temperature and the density of a substance