What is the shape of the water molecule?

a. linear

b. tetrahedral

c. trigonal planar

d. bent

The substance that dissolves a solute to form a solution is called what?

In solvent extraction of oil from oilseeds, what is one way of increasing yield?

How many atoms of fluorine are present in a molecule of carbon tetrafluoride CF4

4. How many valence electrons do the elements in group 17 have?

One acid, HA, has a pKa of 3.16 and another, HB, has a pKa of 4.14. Which is the stronger acid and why?

Identify the number of core and valence electrons for each atom. Xe : core electrons Xe : valence electrons Ca : core electrons Ca : valence electrons Br : core electrons Br : valence electrons

What do the lines around the finger of the doorknob represent?

Identify what type of reaction is below. Also determine what coefficients that would balance the chemical equation.

Much of life on Earth is based in aquatic biomes. What property of water allows life to survive in liquid water?

A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have? 13 9 5 4