Identify the combustion reaction.

a) Al 2S 3 - 2A1 + 35

b) 2H 2 + O2 - 2H 20

c) C12 + 2KBr - 2KCI + Br2

d) C4H 12 + 70 2 - 6H 20 + 4CO 2

Describe what the specific heat capacity (c) tells us about a substance. * Your answer

Which atom will tend to lose rather than gain 1 or more valence electrons when forming an ion?

Why can't helium bond with hydrogen?

A 5.0L balloon in a freezer is at a temperature of - 50˚C has a pressure of 800 mm Hg. What will be the new pressure (in mm Hg) if the balloon is taken out and placed in a warm room (Temperature 37˚C) and the volume expands to 7.0 L? Your answer

Provide three different types of examples of how minerals form on earth

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

The ionic naming rules